Proportionality limit, materials
Firstly, does a stress vs. strain graph for a material always take the same general shape as its load vs. extension graph (with the same important points, e.g. UTS, having the same shape and corresponding to the same thing)?
Secondly, what do the stress-strain and load-extension graphs look like for a metal wire, steel spring, rubber band and polyethene strip, and do these graphs all have all of the main points (i.e. limit of proportionality, elastic limit, upper yield point, lower yield point, UTS and breaking point) at separate points in the graph?
Secondly, what do the stress-strain and load-extension graphs look like for a metal wire, steel spring, rubber band and polyethene strip, and do these graphs all have all of the main points (i.e. limit of proportionality, elastic limit, upper yield point, lower yield point, UTS and breaking point) at separate points in the graph?
First Answer:
The stress-strain graphs dont always take the same shapes, it depends on the materials properlties, for example, a brittle material will have a different shape of line compared to a tough, stiff, elastic, etc material. however, usually the different points do correspond.
Second Answer:
I'm not too sure on this myself, google it though
hope the first part helped though:-)
The stress-strain graphs dont always take the same shapes, it depends on the materials properlties, for example, a brittle material will have a different shape of line compared to a tough, stiff, elastic, etc material. however, usually the different points do correspond.
Second Answer:
I'm not too sure on this myself, google it though
hope the first part helped though:-)
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