Anything doesn't follow Hooke's Law. That the force of a stretched or compressed object is proportional to its deformation.
F=-kx where x is the deformation.
stretch a spring 1 cm and it exerts a force. Sketch it 2 cm and exerts twice the force.
Rubber is a non-Hookean solid. So are polymers (nylon, polyester, polypropylene, etc). You are (non-Hookean). Most animals tissues are non-Hookean: muscles, bones, nerves, brains, etc.
Not sure if you consider silly putty a solid, but it is very non-Hookean.
What's different about them? The relation between strain and deformation is non-linear. Sometimes very non-linear. Very unlike a bar of steel or a classic spring.
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Anything doesn't follow Hooke's Law. That the force of a stretched or compressed object is proportional to its deformation.
F=-kx where x is the deformation.
stretch a spring 1 cm and it exerts a force. Sketch it 2 cm and exerts twice the force.
Rubber is a non-Hookean solid. So are polymers (nylon, polyester, polypropylene, etc). You are (non-Hookean). Most animals tissues are non-Hookean: muscles, bones, nerves, brains, etc.
Not sure if you consider silly putty a solid, but it is very non-Hookean.
What's different about them? The relation between strain and deformation is non-linear. Sometimes very non-linear. Very unlike a bar of steel or a classic spring.
Hookean Solid
Rubber is a non-hookean solid because its elasticity is stress dependant and sensative to temperature and loading rate.
here is the website i found the info