Thank You

In my final post for my senior project I would like to thank everyone who made this project possible as well as a great learning experience.

First I would like to thank Dr. Barzin Mobasher for letting me intern with his team on such short notice as well as Luca Alfarano, Himai Mehere, and Jacob Bauchmoyer for answering every one of my many questions and allowing me to assist them in their research. Being able to work in such a research oriented setting was a brand new experience for me and I am very thankful to have had the opportunity.

Next I would like to thank my senior project advisor Daniel Deluzio. He has really motivated me to pursue my passion in Astronomy through his Astrophysics class. I also want to thank him for accepting to be my project advisor even when he had little knowledge in material science, he did not hesitate in his answer and claimed it would be "a learning experience for both of us."

I would like to thank my college counselors, Mrs. Kate and Mrs. Q, for making this project possible, without them I would've probably sat around everyday for the last 4 months.

I would also like to thank my Head of School Mr. Villafuerte for getting me back on track with my project when the senioritis hit me towards the end of the year. I really appreciate him being there and continuing to motivate me everyday.

Lastly, I would like to thank Ms. Rubio. Even though she did not have the largest role throughout my project, she was definitely the biggest reason why I finished it in the first place. If I didn't have her threatening to take tickets for Ed Sheeran's concert away from me I probably would've given up just before the finish line... I definitely would've regretted not finishing if I would've stopped the project.

Thanks to everyone who frequently tuned into my blog,

Thanks for reading,

Nick Thompson

Static Testing Nylon Samples

Today I helped Luca out with tests he ran on his nylon samples. We used the static test machine to bring the samples to failure then recorded the point of failure. It was pretty cool to see the consistency of the material while also observing the slight differences between each individual sample. As every sample was exposed to different levels of stress and therefore is deformed in a different way than every other sample.

Tomorrow is my last day interning at ASU so I will make a post thanking everyone. Until then here are some pictures from the static testing today.

Thanks for reading,

Nick Thompson

Testing More Nylon

Tomorrow we will be testing more nylon samples except these samples were not provided by NASA, there were cut from sheets of nylon at ASU. Luca, the exchange student from Italy, will be testing these samples on the static test machine to hopefully gain a better understanding of the nylon and use the results for his paper. I will post pictures of the tests tomorrow and talk about the tests as well.

Thanks for reading,

Nick Thompson

Thoughts on Testing

While getting everything in order to start testing the samples took like three months... I really enjoyed watching the samples get ripped in half once testing started. Analyzing the points of failure of the samples and the maximum amount of stress the sample of nylon can withstand before failing. I thought it was really cool to see how the graduate students showed trends in data and analyzed the results. I had never seen how data was actually analyzed to show trends rather than just showing the raw results of the experiment, so observing this was a new experience.


That's all for high-speed testing, hopefully later this week we will test Luca's project samples for his personal paper.

Thanks for reading,

Nick Thompson

We Finally Got to Rip up the Samples

Today was a big day. All our hard work and anticipation put into preparing the samples and waiting on the machine to be fixed was finally put to use. We successfully tested 10 NASA provided nylon samples on the high-speed test machine and are now able to analyze the data through our DIC results. I am very excited to see how the test results show up as these results will go directly to NASA to help them get a better understanding of why the fabric ripped on the last test and what types of stress and strain the fabric can withstand.

Here is a picture of some of the samples post-testing:

Thanks for reading

Nick Thompson

Its a Miracle

After a few days of fixing, the High-speed test machine finally started working again. We will be running tests in the upcoming days however I feel the need to commemorate the hard working ASU technicians who continually put up with that 15 year old machine. It must be bi-polar or something... or going through a phase, I'm pretty sure thats what teenagers do. Anyways I'll post a couple pictures of what the high-speed test machine looks like.

Thanks for reading

Nick Thompson

An Unfortunate Turn of Events

So... The thing I joking said in the last blog post about the high-speed test machine not working came true. The machine was working perfectly yesterday but decides not to work on the day we were supposed to test the NASA nylon samples. On a related note, I had to prepare another 10 samples of the nylon given to ASU by NASA. I learned that each square inch of the fabric is worth $100... meaning that I held fabric that was worth more than I am.

Hopefully the machine gets fixed and we are able to test soon.

I have a few pictures of some NASA nylon samples:

Thanks for Reading.

Nick Thompson

Static-Stress Testing

To begin this week I helped run static stress tests on the samples I prepared last week. The static-stress test machine differs from the high-speed stress machine in that it slowly applies a load onto the sample until failure. The high-speed stress machine rapidly applies a load onto the sample resulting in failure of the material.

Each test takes anywhere from five to ten minutes per sample, so we were performing tests for well over two hours. Seeing the machines functioning and performing the tests was a new experience for me as I have never actually performed tests with machinery in a lab setting.

However, in order to properly take data of the samples a system called DIC had to be set up to analyze any deformation of the sample through the application of the load. DIC setup takes about three hours alone as the process is very precise and detailed.

My next post will contain testing on the high-speed machine... unless it stops working.

Here are a few pictures of the Static tests and of the DIC set up:

Thanks for reading.

Nick Thompson

Preparing Samples for High-speed stress testing

For the last few days at ASU I have been preparing nylon samples which will be used for testing on the High-speed stress machine. To properly prepare the samples I have had to pull the nylon, yarn by yarn, until the sample was the proper width and length and could fit in the grips of the machine.  I believe I prepared 20 or so samples for next week's tests. Yes this process is as tedious and as mentally challenging as it sounds, however I am beginning to understand that this feeling is a large part of what I considered "science."

Hopefully we can start testing these samples next week and watch our hard work get ripped to shreds..

Here are a couple pictures of samples I prepared.

Thanks for reading

Nick Thompson

High-Speed Test Machine

ASU technicians and lab managers have finally made the high-speed test machine fully functional after being out of use for nearly a decade. The machine was missing several key components that needed to be replaced. The machine is now safely able to test various samples by rapidly applying stress loads to them, simulating stress the sample would experience at high speeds due to air resistance. In particular, Dr. Mobasher and his team are now able to fully test nylon samples provided by NASA to collect and analyze how the samples react to rapidly applied stresses. The nylon must be able to withstand the stresses an object would undergo at speeds of Mach 2 or lower after the supersonic inflatable decelerators are finished slowing the payload. 

My next post will pertain to preparing nylon samples and further tests that will be run. 

Thanks for reading,

Nick Thompson

Lab Safety and my Major Takeaways from the Courses

As of Thursday I have completed all required safety training for any individual working in a lab. This blog will be rather short as most of last week was spent preparing for the training.

Prior to receiving the necessary lab safety training, I not able to be a hands-on participant in any of the experimentation being preformed in the lab. Now that I have completed all three required courses (Fire-safety, Hazardous waste management, and General Lab safety) I am able to help Luca, Himai, and Jacob during testing.

Each lab safety course essentially preaches the same overarching idea : Mistakes happen when you are not diligent and acting with a purpose. Which translates to: Have common sense, the machines your working with can kill you so treat it with respect. Once I let that idea sink in, being careful in the lab no longer seemed to be some kind of drag or nuisance, but rather a means to improve your testing experience and the quality of your results.

My next blog post will contain my experiences from interning as well as anything that was done in the lab.

Thanks for reading,

Nick Thompson

Cutting Nylon Samples with a side of Stress and Strain Analysis

This blog post will pertain to my first day interning post-ASU spring break as well as things to come in the next couple days.

Until I receive my lab safety course on the 16th of March, I am essentially a bi-stander during the whole experimentation portion of the project. During my time at ASU, I have been helping anyone who needs a hand with something as well as furthering my understanding of stress and strain by reading the Mechanics of Materials textbook. 

On Wednesday, March 15th, I helped Luca Alfarano cut some nylon samples which will be used for testing in the coming days. 

Things have been at a rather slow pace as Dr. Mobasher awaits the arrival of some NASA provided nylon samples, which are of the exact specifications of the parachutes NASA is using. 

My next blog post will be about my lab safety course and ways I will be able to contribute to project in the coming weeks.

Thanks for reading,

Nick Thompson

This blog post will talk about my internship experiences on Thursday and Friday of last week at ASU.

Thursday 03/02/2017:
I went to ASU on Thursday to help Luca Alfarano prepare nylon samples he would be testing on Friday and Saturday. Unfortunately, since ASU is on Spring break next week, I will not be able to provide "hands-on" help in the lab and will just be an observer to the experiments.

Dr. Mobasher provided me with several links as a means to become more familiar with the entire project as a whole. The nylon testing that Dr. Mobasher and his team are preforming at ASU is only a portion of the actual NASA LDSD project. LDSD stands for "Low-Density Supersonic Decelerator" and is currently being worked on by scientists and engineers at NASA and JPL.

I will provide the links at the end of this blog post for anyone that is interested in watching the videos.

Friday 03/03/2017:

On Friday I helped Luca prepare more samples of nylon for testing he would be doing later in the day.

The entire process of preparing the samples is incredibly repetitive and meticulous.

Preparing the Nylon Samples:

The first step in the sample preparation is to cut the aluminium sheet into rows with a width of 1.6"
Next, cut the rows into sections that are 2.1" in length. (each section will be used as a grip for the nylon same and each nylon sample uses 4 grips)
Once the aluminium sections are cut, the gage length must be marked on the sample of nylon for proper placement of the aluminium grips. The gage length is the part of the nylon which will be tested.
Next, apply super glue to one side of an aluminium grip and place on the nylon. Two grips will be placed on the bottom of the nylon sample and two will be placed on top of the nylon sample, one directly onto each of bottom grips.

Before testing the sample, paint must be applied in a very tedious process in order for DIC to properly detect deformation in the sample during testing.


ASU is on Spring break next week so my hours will partly spent in the lab and partly spent at BASIS Phoenix. However, I plan to continue my independent reading of my Mechanics of Materials textbook as well as readings for my project.


Links:

https://www.youtube.com/watch?v=1wXjvlknKEM

https://www.youtube.com/watch?v=G5Ax_P5i9X4

https://www.youtube.com/watch?v=QjLkOZMUjOs

https://www.youtube.com/watch?v=wsELEJEtRI0

https://www.youtube.com/watch?v=nsrju4X8hK4


Thanks for reading,

-Nick Thompson

My First Few Days at ASU

 I started my internship with Dr. Mobasher at ASU on Tuesday of this week. Dr. Mobasher put me into contact with three of his post-graduate students: Jacob Bauchmoyer, Himai Mehere, and Luca Alfarano. Jacob and Himai are both obtaining their Masters degree from ASU in Civil Engineering and Luca is on a six-month research exchange program from Italy.

Day 1 02/28/17:

After introducing myself to Jacob, Himai, and Luca, I was given a tour of the laboratory which Dr. Mobasher and his team use for experimentation. I was shown the INSTRON machine which uses a constant strain rate to cause a displacement at one end of the nylon sample being used in testing. Displacement of the nylon introduces uniaxial stress into the material and eventually causes deformation in the nylon structure.

Once we returned from the lab, I was also introduced to Digital Image Correlation, or DIC in short. The DIC method takes and uses photographs, which are taken in constant time intervals during the experiment, to digitally analyze and measure deformation of the sample being used until failure.

The tedious process of setting up the DIC cameras and preparing the nylon samples according to the proper guidelines can take several hours, while the actual tests only last for about 20 minutes. Reminds me of playing with dominos...you spend an hour or more setting them up and then watch them fall for the best 10-15 seconds of your life.

Later in the day I was assigned more reading in the Mechanics of Materials textbook by Dr. Mobasher. I read through sections 7.1, 7.2, and 7.3 and took notes on those sections.


Day 2 03/01/17:

I started my day with continuing my reading of Chapter 7, finishing section 7.4 and 7.5.

In order to be in the lab while experimentation is ongoing, I must take three ASU required lab safety courses. Jeff Long, the Laboratory Manager for the Ira A. Fulton School of Engineering, helped me register for the Hazardous waste management and Fire safety and Prevention courses, which are taught online, and another course about Lab Safety, which is taught in a classroom. The two online courses required me to listen to an audio presentation about each subject and take an exam which required a minimum score of 87% to pass the class. I was able to finish both online courses while at ASU on Wednesday, but I will not be able to take the in-class Lab safety course until March 16th, because of Spring break. Therefore I will not be able to help with any tests until I have completed that course.


My post tomorrow will contain my experience on my third day of interning as well as my plan for next week.

Thanks for reading,

-Nick Thompson

Final Notes on Chapter 2. Sections 2.10, 2.11, 2.12

This blog post will contain my notes from the final sections of chapter 2.

2.10: Stress Concentrations

Stress concentrations: High stresses in very small regions of a bar.

Stress Concentration Factors:
The intensity of a stress concentration is usually determined by the ratio between maximum stress and normal stress, this is depicted by the stress-concentration factor K: \[K = \frac{{{\sigma _{\max }}}}{{{\sigma _{nom}}}}\] \({\sigma _{nom}} = \frac{P}{{ct}}\) = nominal stress (where ct is the net area at the cross section of the hole.)

2.11: Nonlinear Behavior
Perfect Plasticity: perfectly plastic regions on a stress-strain curve continue until the strains are 10 or 20 times larger than the yield strain.

A material having a stress-strain diagram with theses types of characteristics is called an elastoplastic material.

2.12: Elastoplastic Analysis

Yield displacement is the downright displacement of the bar at the yield load and is equal to the elongation of the inner bar when first releasing yield stress \({\sigma _y}\) :\[{\delta _Y} = \frac{{{\sigma _y}{L_2}}}{E}\] The plastic displacement \({\delta _Y}\) at the instant the load just reaches the plastic load \({P_p}\) and is equal to the elongation of the outer bars at the instant they reach yield stress.
\[{\delta _P} = \frac{{{\sigma _y}{L_1}}}{E}\] Now Compare \({\delta _P}\) with \({\delta _y}\) and get the ratio: \[\frac{{{\delta _P}}}{{{\delta _y}}} = \frac{{{L_1}}}{{{L_2}}}\] My next blog posts will be about my first few days at my internship and some of the interesting and new experiences I will have had working in a lab.

Thanks for reading,

-Nick Thompson

Notes on Sections 2.6, 2.7, and 2.8 in Chapter 2

This blog post is a continuation of my notes of Chapter 2 and will contain sections 2.6, 2.7, 2.8.

2.6: Stress on Inclined Sections

Stress Elements:
A stress element is an isolated element of a material which depicts the stresses acting on all faces of that elements.
The dimensions of a stress element are assumed to be infinitesimally small and are therefore drawn to a large scale.

Stresses on Inclined Sections:
Observing the stresses acting on inclined section of an object provides a more complete picture. Since the stresses are uniform throughout the entire bar, the stresses acting over the inclined section must be equally distributed.

When observing the inclined section of an object, you must first specify the orientation of the inclined section. Orientation is usually established by the angle \(\theta \) between the x-axis and the normal to the section.

To find the stresses acting on a section, the forces must be broken up into components. These components are the normal force N and shear force V, which is tangential to the plant of the object. The force components can be expressed as:

\(N = P\cos \theta \)     \(V = P\sin\theta\)

Since \({\sigma _\theta } = \frac{N}{{{A_1}}} = \frac{P}{A}{\cos ^2}\theta \) and \({\tau _\theta } =  - \frac{V}{{{A_1}}} =  - \frac{P}{A}\sin \theta \cos \theta \)
The normal and shear stresses can be defined as:
\({\sigma _\theta } = {\sigma _x}{\cos ^2}\theta  = {\sigma _x}(1 + \cos 2\theta )\)

\({\tau _\theta } =  - {\sigma _x}\sin \theta \cos \theta  =  - \frac{{{\sigma _x}}}{2}(\sin 2\theta )\)


Maximum Normal and Shear Stresses:
\({\sigma_\theta } = {\sigma_x}\) when \({\theta} = 0\)

As \({\theta }\) increases or decreases, the normal stress diminishes until \({\theta }\) = \(\pm \) \({90^ \circ }\) where it becomes zero, because there are no normal stresses on sections parallel to the longitudinal axis. The maximum normal stress occurs at \({\theta }\) = 0 and is: \[{\sigma_{max}} = {\sigma_x}\]
When \({\theta }\) = \(\pm \) \({45^ \circ }\), the normal stress is one half the maximum value.

The maximum shear stresses have the same magnitude:

\({\tau _{\max }} = \frac{{{\sigma _x}}}{2}\)

2.7: Strain Energy

2.7 looks at strain energy from its simplest form , through axially loaded members subjected to static loads. A static load is one that has no dynamic or inertial effects due to motion.

Work is therefore defined as: \[W = \int\limits_0^\delta  {{P_1}d{\delta _1}} \]

Strain energy is equal to work so it is therefore equal to the work equation stated above. 

Elastic and Inelastic Strain Energy:

Elastic strain energy is strain energy recovered during unloading. 

Inelastic strain energy is strain energy that is permanently lost during the unloading process. 

Linearly Elastic Behavior:

\[U = W = \frac{{P\delta }}{2}\]  

This equation describes the strain energy, U, stored in a bar

Since \(\delta  = \frac{{{P^2}L}}{{2EA}}\), in a linearly elastic bar strain energy can take either of the following forms: 

\(U = \frac{{{P^2}L}}{{2EA}}\) or \(U = \frac{{EA{\delta ^2}}}{{2L}}\)

Displacements caused by a single load:

Since U = W = \(\frac{{P\delta}}{2}\), this questions can be easily rearranged to solve for displacement:

\[\delta  = \frac{{2U}}{P}\] 

2.8: Impact Loading

Loads can be classified as static or dynamic depending on whether they remain constant or vary with time.
-A static load is applied slowly so it causes no vibrational or dynamic effects in the structure.
-Dynamic loads take many forms - some are apllied and removed suddenly (impact loads), others persist for long periods of time and continuously vary in intensity (fluctuating loads)

Maximum elongation of the Bar:

Starting by equating the potential energy lost to maximum strain energy, we may get to maximum elongation of a bar with several derivations.
Our starting equation:
\[w(h + {\delta _{\max }}) = \frac{{EA{\delta _{\max }}}}{{2L}}\]
And max elongation is found to be :
\[{\delta _{\max }} = \sqrt {2h{\delta _{st}}}  = \sqrt {\frac{{m{v^2}L}}{{EA}}} \]
Maximum Stress in a Bar:
\[{\sigma _{\max }} = \frac{{E{\delta _{\max }}}}{L}\]
Through several derivations and substitutions, we arrive at the final equation which describes the maximum stress which a bar can receive:
\[{\sigma _{\max }} = \sqrt {\frac{{m{v^2}E}}{{AL}}} \]

Impact Factor:
The Impact factor is known as the ratio between the dynamic response of a structure and the static response (for the same load) :
Impact Factor = \( \frac{{{\delta _{\max }}}}{{{\delta _{st}}}}\)

My next blog post will be on my notes on the final sections of Chapter 2. Sections 2.10, 2.11, and 2.12.

Thanks for reading,

-Nick Thompson

Notes on Chapter 2 Sections 2.3, 2.4, 2.5

Towards the end of last week I finished reading sections 2.3 through 2.5 in Chapter 2. This post will give a summary of the important topics through those specific sections.

2.3 :
Section 2.3 dealt with changing material lengths under nonuniform conditions.

When a linearly elastic material is loaded only at the ends, the change in length of the material can be obtained through the equation:

\(\partial  = \frac{{PL}}{{EA}}\)

Where P is the load on the bar, L is the length of the bar, E is the modulus of elasticity, and A is the cross sectional are.

However, 2.3 deals with this equation in a more general sense and not just solely when it is used for linearly elastic materials. 

Bars consisting of Prismatic Segments:

The change in length of the bar when loaded can be obtained from the equation:

\(\partial  = \sum\limits_{i = 1}^n {\frac{{{N_i}{L_i}}}{{{E_i}{A_i}}}} \)

Where i is the numbering index for various segments, n is the total number of segments, and \({{N_i}}\) is the internal axial force in segment i.

Bars with continuously Varying Loads or Dimensions:

Given that: \[d\partial  = \frac{{N(x)dx}}{{EA(x)}}\] 

The elongation of the entire bar is obtained by integrating over the entire length with respect to x.

\[\partial  = \int\limits_0^L {d\partial  = \int\limits_0^L {\frac{{N(x)dx}}{{EA(x)}}} } \]

2.4 :

Section 2.4 deals with statically indeterminate structures.

A structure is classified as statically determinate if its reactions and internal forces can be determined solely from free-body diagrams and equations of equilibrium (i.e \(\sum F  = 0\)). It is important to note that the forces of statically determinate structures can be found without knowing the properties of the materials.

However, most structures are more complex that a bar and their reactions and internal forces cannot be found by statics alone. These types of structures are classified as statically indeterminate. In order to analyze these structures, supplemental equations must be used in addition to displacement equations. 

2.5 :

Sections 2.5 deals with Thermal effects, Misfits, and Prestrains.

External loads are not the only sources of stresses and strains in a structure. Other sources include thermal effects, which arise from temperature changes, misfits, which result from imperfections in construction, and prestrains, produced by initial deformations. 

Thermal effects:

Changes in temperature produce expansion or contraction of structural materials, resulting in thermal strains and thermal stresses.

The equation for thermal strain \({\varepsilon _T}\) is proportional to the temperature change \(\Delta T\): 

\[{\varepsilon _T} = \alpha (\Delta T)\]

Where \(\alpha\) is the coefficient of thermal expansion.

Temperature-displacement relation calculates the increase in any dimension by the equation: 

\[\partial ={ \varepsilon_T}L= \alpha(\Delta T)L\]

Misfits:

Misfit members are members with slightly different measurements than those which were intended in their design and consequently do not fit properly in their structure. 

Prestrains:

Prestrains occur in a system when misfit members are used in construction of a given structure. These misfit members introduce strains and stresses into the structure before any loads are applied to it and are therefore called "Prestrains" and "Prestresses." 

If a structure is statically determinate, small misfits in one or more members will not produce strains or stresses in the overall structure. However, in statically indeterminate structures, small misfits do introduce strains and stresses as the overall structure is not free to adjust to those misfit members. 

Next post will pertain to my notes on sections 2.6, 2.7, 2.8, and 2.9.

Thanks for reading, 

-Nick Thompson

Notes on the Final Sections of Chapter 1 and Beginning of Chapter 2

Last week I finished taking notes on Chapter 1 with a re-introduction to linear elasticity and Hooke's law and an introduction to Poisson's ration. This blog post will contain my general notes on the topics above as well as the contents of Chapter 2.

Linear Elasticity:
Many structural materials such as wood, plastics, and most metals behave both elastically and linearly when an initially loaded. The stress-strain curves of these materials, consequently, begin with a straight line that passes through the origin.
A material is therefore said to be linearly elastic when it exhibits elastic behavior and possesses a linear relationship between stress and strain.
Linearly elastic materials are very important in engineering because structures and machines which are designed in this linearly elastic region do not permanently deform when yielding occurs.

Hooke's Law:
English scientist Robert Hooke was the first person to scientifically investigate the elastic properties of materials. He measured the stretching of long wires supporting weights and was able to establish the linear relationship between applied loads and the resulting elongation.

Hooke's Law describes the linear relationship between stress and strain for a bar in simple tension or compression through the equation:

\(\sigma  = E\varepsilon \)

Where \(\sigma\) is the axial stress, \(\varepsilon\) is axial strain and \(E\) is the modulus of elasticity for the given material.

Poisson's Ratio:
The ratio between the lateral strain \(\varepsilon '\) and the axial strain \(\varepsilon\) acting on an object is known as Poisson's ratio.

This ration can be denoted as:

\(v =  - \frac{{Lateral strain}}{{Axial strain}} =  - \frac{{\varepsilon '}}{\varepsilon }\)

The minus sign is inserted into the equation to counteract the opposite signs of the lateral and axial strains when acting on a material. 

Starting Chapter 2:

Chapter 2 of the Mechanics of Materials textbook pertains to axially loaded members. an axially loaded member is any structural component subjected only to tensile or compressive forces. After an intro in section 2.1, section 2.2 deals with the changing lengths of axially loaded members. This sections gives information on springs, prismatic bars, and cables. 

My next blog post will deal with my notes last week of sections 2.3 through 2.5

Thanks for reading,

-Nick 

Progress on my textbook readings

For my second blog post I will talk about how I am progressing through my independent reading of the textbooks I was provided as well as things I am finding interesting along the way.

While I was not introduced to many new topics in the Engineering Mechanics: Statics textbook, as the first two chapters mainly consisted of a basic re-introduction to Newton's laws, Newtonian Gravitation, and vector properties and calculations. The Mechanics of Materials textbook as already provided me with new information about several key aspects regarding the behavior of materials. 

Through my readings of the Mechanics of Materials textbook, so far, I have learned several fundamental concepts about different types of stresses and strains and also the key differences between static and dynamic testing of a material. 

Aside from basic knowledge, I have also started solving basic stress-strain problems in the textbook using the several stress and strain equations. 

As I continue to progress through the textbook, I provide additional information that I find interesting or just learned about.

Thanks for reading,

-Nick Thompson

Learning about several introductory concepts regarding the mechanics of materials, stress-strain responses, dynamic and static testing, and failure analysis

Over the past few days I have been studying several introductory concepts in preparation for my internship at ASU with Dr. Mobasher.

Dr. Mobasher provided me with two textbooks and links which will give insight on some of the fundamental characteristics and physical properties of materials as well as different means to analyse them.

I have been watching Youtube videos by Dr. Yiheng Wang, a professor at Lone Star College in Texas, about Engineering Mechanic, specifically statics. The link the channel can be found below.

The two textbooks provided by Dr. Mobasher are tilted Mechanics of Materials Sixth Edition by James M. Gere, and Engineering Mechanics, Statics, Fourth Edition by Anthony Bedford and Wallace Fowler.

My next post will be about things I find interesting during my readings, as well as thoughts and more details about my internship.

Thanks for reading,

-Nick Thompson

Channel link: https://www.youtube.com/playlist?list=PLLbvVfERDon1pceRKOjAxiqFTEvghmZKh