V2EX elastic deformation

Elastic Deformation

释义 Definition

弹性变形:材料在外力作用下发生形状或尺寸改变,但在外力撤除后能够基本恢复原状的变形。常见于金属、橡胶、弹簧等在不超过弹性极限时的受力状态。(在更高载荷下可能进入“塑性变形”,即不可完全恢复。)

发音 Pronunciation (IPA)

/lstk difrmen/

例句 Examples

The wire showed elastic deformation when a small weight was added.
当加上一个小重物时,金属丝表现出弹性变形。

Under cyclic loading, elastic deformation can repeat many times without permanent damage if the stress stays below the yield strength.
在循环载荷下,如果应力保持在屈服强度以下,弹性变形可以重复发生多次而不产生永久性损伤。

词源 Etymology

elastic 源自希腊语 elastós,有“可拉伸、能回弹”的含义;deformation 来自拉丁语 deformare(使形状改变)。合起来强调“会变形,但能回弹恢复”的材料响应。

相关词 Related Words

文学与经典著作 Literary Works

  • Mechanics of Materials(Beer & Johnston)材料力学中系统讨论弹性变形、应力应变关系。
  • Mechanics of Materials(Gere & Goodno)以工程实例讲解弹性变形与胡克定律。
  • Theory of Elasticity(Timoshenko & Goodier)经典弹性理论著作,频繁使用“elastic deformation”表述。
  • Introduction to Solid Mechanics(Crandall, Dahl & Lardner)固体力学框架下解释弹性变形与本构关系。
  • Mechanical Metallurgy(Dieter)金属在弹性与塑性阶段的变形机理对比中使用该术语。
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