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单词 poisson ratio
释义

poisson ratio

Definition
Ratio of decrease in the thickness (lateral contraction) of a body being pulled (under a tensile load) to its increase in length (longitudinal extension). It is constant for a material, around 0.28 for ordinary steels. Named after its discoverer, the French mathematician Siméon-Davis Poisson (1781-1840).
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更新时间:2025/4/17 0:14:13