V2EX shear strain

Shear Strain

释义 Definition

Shear strain(剪切应变):材料在剪切力作用下,内部各层发生相对滑移所产生的变形程度,常用来描述形状改变(通常与角度变化相关),而不一定伴随体积变化。在工程与材料力学中常记作 γ

发音 Pronunciation (IPA)

/r stren/

例句 Examples

Shear strain increases when the layers slide past each other.
当各层彼此滑移时,剪切应变会增大。

In the finite-element model, we monitored shear strain near the bolt hole to predict the onset of failure under cyclic loading.
在有限元模型中,我们监测螺栓孔附近的剪切应变,以预测循环载荷下失效的开始。

词源 Etymology

Shear 原意与“剪、切、剪切”相关,来自古英语 sceran(意为“切割”);在工程语境中引申为“使材料沿相邻层面发生相对滑动的剪切作用”。Strain 来自中古法语 estreindre(“拉紧、束紧”),进一步发展为“受力后的变形/应变”。两者组合后,“shear strain”即指由剪切作用导致的应变。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Mechanics of Materials(Beer & Johnston)
  • Theory of Elasticity(Timoshenko & Goodier)
  • Introduction to the Mechanics of a Continuous Medium(Malvern)
  • Roark’s Formulas for Stress and Strain(Roark / Young & Budynas)
  • ASTM 与 ISO 相关材料测试标准(在剪切测试与本构描述中常见该术语)
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