Questions about elasticity (moved)

[pervect]

The following was "split-off" from https://www.physicsforums.com/showthread.php?t=171079

Mr Hillman,

I have the following questions that have puzzled me and seek to get some release here.

1 stress vs strain (e.g. Hooker's elastic spring law f=ks, or in tensor expressions),
which is a more fundmental physical quantity ? (they are not fundmental in physics I know, but seem yes for deformable materials) Is this only a circular argument?


2 Is the first question similar to F=ma (the relation between F and a)?

 

[uiulic]

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[uiulic]

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