An Introduction to Stress and Strain
This video is an introduction to stress and strain, which are fundamental concepts that are used to describe how an object responds to externally applied loads.
Stress is a measure of the distribution of internal forces that develop within a body to resist these applied loads.
There are two main types of stress - normal stress, which acts perpendicular to a surface, and shear stress, which acts parallel to a surface.
Strain is a measure of the displacements that occurs within a body. Again we have both normal and shear stresses.
In this video I also discuss stress-strain curves, which define how stress and strain are related. Different materials have different stress-strain curves, which can be determined by performing a tensile test.
The stress state at a single point within a body is actually made up components in both the normal and the shear directions. I explore this idea at the end of the video but looking at stresses obtained when we cut a bar using an inclined plane.
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@jimarc7411
3 жыл бұрын
Hello po, can you help me with the problem about stress and strain? This are the example; Determine the minimum diameter of the round steel bar to carry the load of 25 kpa, which is to be applied 15° to it's axis. Take the strength of the materials as the materials as 95 MPa. Illustrated the figure together with solution.
11 years from taking solid mechanics class in the college, now I finally got clear understanding on shear stress. Very nice and thanks!
@blu-rae864
3 жыл бұрын
I thought you were 11 years old for a moment lmao
@joniiiiiiiii
3 жыл бұрын
@@blu-rae864 I thought he was studying 11 years solid mechanics and still cant pass lol
@mynewan
2 жыл бұрын
How much did you pay for that college lol
@wendulays4158
2 жыл бұрын
I misread it, hahaha lol
@KhaosAtom
10 ай бұрын
@@joniiiiiiiii he said he never had a 'clear' understanding, not that he couldn't pass the class. Many folks pass a lot of classes without clear understanding or mastery of the subject/concept.
US unit for compressive stress: gallons of ice cream per school desk.
@mathew66
3 жыл бұрын
😂😂😂
@ethanwild3301
Жыл бұрын
Better than bratwursts per nazi
@haydenbrophy9460
Жыл бұрын
its psi… not that complicated
@breadloaf..
Жыл бұрын
How many football fields again?
@Astroh_rick
Жыл бұрын
@@breadloaf.. nooh😭😭
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@kashyaptandel5212
Жыл бұрын
fr I love these types of channels that actually teach for purpose of learning, btw you know any other similar channels?
@kerbodynamicx472
3 ай бұрын
This channel was a huge help for my mechanical engineering course.
This material is super well explained and very easy to understand. People like you make studying (or reviewing as in my case) very friendly and fun. Thanks a lot!
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@buildingenierie
11 ай бұрын
This day has come 😅
I have been looking for this explanation of stress for years. Thanks for putting this online and making it very easy to understand
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@ivoryas1696
4 ай бұрын
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This was a great refresher for a few of my classes! Well articulated and presented, thank you!
Stress and strain: the mental feelings of an undergraduate engineering student
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10 күн бұрын
Stop describing me!!
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Man I wish this was put out a month ago when I started my solid mechanics class. Great video though, thanks. It'll for sure help me brush up for midterms/finals. I'll forward this to my classmates, and my Prof.
@TheEfficientEngineer
4 жыл бұрын
Thank you!
@nowsingsing
4 жыл бұрын
final tomorrow
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@kasopejohnson3831
4 жыл бұрын
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The shear stress and strain that it takes to make a video like this is a lot. Good vid
Thankyou efficient engineer for this academic content 👏
Thank you for providing excellent insights and observations during the teaching
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our prof. recommended this, these videos are great.
CANT THANK YOU ENOUGH !!!! YOU GOT A SUBSCRIBER FOR YOUR EXCEPTIONAL CONTENT & EXPLANATION 🎉🎉🎉
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@1poonaikutty
3 ай бұрын
might you blame yourself and not the teacher
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Eye-opening!!!
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This is a great video that demonstrates a lot of the value of stress. I also enjoyed the diagram that showed how all materials have a certain amount of elasticity until it reaches a “plastic region” where it is permanently changed.
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your videos are so helpful that my Chinese professor suggested us to watch all! Thank You
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Following u from Iraq this video is really helped me understand the stresses thanks a lot mate