18 lines
420 B
Markdown
18 lines
420 B
Markdown
# Hysteresis
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[ref](https://en.wikipedia.org/wiki/Hysteresis)
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the dependence of the state of a system on its history.
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# Hertz law
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[ref](https://www.sciencedirect.com/topics/engineering/hertz-theory)
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contact between two elastic solids
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# Newmark time integration
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[ref](https://www.sciencedirect.com/topics/engineering/newmark-method)
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a method of numerical integration used to solve certain differential equations.
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