Well done, clear, simple explanation. No boring recorded voice, you can hear it's not just a person reading a text (I always end up getting distracted with those videos) but somebody who knows what they are talking about!
This is literally so helpful. I have been sick all week and missed several lectures of my class and we have a quiz tomorrow. After watching your video I feel like I could confidently explain to my professor what the stress-strain curve is.
It's true about stretching 5 inch objects - every time I've tried to stretch a specific 5 inch object, it has always gone back to being only 5 inches long.
The definition of strain is incorrect. Strain is not "how much force is being used to put tension on a particular fibre or structure". Strain is actually the change in length of a structure divided by its original length. Thus strain has no units, rather it is a percentage. Stress on the other hand is the force applied over a certain area.
They're not. While this video is easy to... listen to... it doesn't accurately describe the 2 axes of the stress-strain curve. If you wanted to say Strain and 'stretch' were similar, then that might be true. Stress can be in tension or compression.