“Poisson’s ratio”的概念、定义、翻译、参考文献-科学参考

单词	Poisson’s ratio
释义	Poisson’s ratio Encyclopedia 理学材料力学性能释 Poisson’s ratio泊松比当杆件受到单向拉伸时，杆既产生轴向伸长还产生侧向收缩，在线弹性范围内，垂直于载荷方向的应变的负值与沿载荷方向应变之比。泊松比为一常数，即。
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