,since you have already mentioned about the Hooke's Law in this thread. I will try to pitch in a question here.
Since the general Stress-Strain relation can be derived from the Hooke's Law (which actually relates the force to displacement with a constant of proprtionality i.e. stiffness or K), so this general Stress-Strain relation should also hold if I am considering a change in stiffness of the structure during deformation of it? [For instance, a fishing rod which encounters a change in its stiffness when it deforms].
Since the general Stress-Strain relation can be derived from the Hooke's Law (which actually relates the force to displacement with a constant of proprtionality i.e. stiffness or K), so this general Stress-Strain relation should also hold if I am considering a change in stiffness of the structure during deformation of it? [For instance, a fishing rod which encounters a change in its stiffness when it deforms].
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