V2EX stress-strain curve

Stress-Strain Curve

释义 Definition

应力-应变曲线:材料在受力(应力)作用下产生变形(应变)时,两者关系的图线。它常用于判断材料的弹性阶段屈服点塑性变形极限强度断裂行为等。(在不同测试条件下,如拉伸/压缩/剪切,曲线形状会有所不同。)

发音 Pronunciation (IPA)

/strs stren kv/

例句 Examples

The stress-strain curve shows how a material deforms under load.
应力-应变曲线展示了材料在载荷作用下如何发生变形。

From the stress-strain curve, we can estimate Young’s modulus in the linear region and identify the yield point before plastic deformation begins.
通过应力-应变曲线,我们可以在线性区估算杨氏模量,并在进入塑性变形前识别屈服点。

词源 Etymology

该短语由三个词组成:stress(应力)、strain(应变)和 curve(曲线)。

  • stress 源自拉丁语词根 stringer(“拉紧、绷紧”),引申为“压力/应力”。
  • strain 可追溯至古法语 estreindre(“拉紧、束紧”),在工程语境中发展为“被拉伸后的变形/应变”。
  • curve 来自拉丁语 curvus(“弯的”),指“曲线”。
    组合后即表示“应力与应变关系的曲线”。

相关词 Related Words

文学与典籍 Literary Works

  • Mechanics of Materials(Gere & Goodno,《材料力学》经典教材)
  • Engineering Mechanics of Solids(Popov,《固体工程力学》)
  • Materials Science and Engineering: An Introduction(Callister & Rethwisch,《材料科学与工程导论》)
  • ASTM E8/E8M(《金属材料拉伸试验标准》;工程文献中常以应力-应变曲线讨论测试与指标)
  • Mechanical Metallurgy(Dieter,《机械冶金学》;常用应力-应变曲线阐释加工硬化等现象)
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