V2EX orthotropic

Orthotropic

定义 Definition

orthotropic(正交各向异性的):指材料在三个相互垂直的方向上具有不同的物理/力学性质(常见于弹性模量、强度、热膨胀等),并且这些方向通常与材料的主轴一致。该词多用于工程材料、复合材料与弹性力学语境。(注:更一般的“各向异性”还包括更多方向差异的情况。)

发音 Pronunciation

/rθtrpk/

例句 Examples

Wood is often modeled as an orthotropic material.
木材常被建模为正交各向异性材料。

In finite element analysis, assuming an orthotropic stiffness matrix can better capture the behavior of composite laminates under load.
在有限元分析中,采用正交各向异性的刚度矩阵能更好地描述复合材料层合板在载荷作用下的行为。

词源 Etymology

ortho- 来自希腊语,意为“正的、直的、正确的”;**-tropic** 与“方向/转向”相关(同源于表示“转动、趋向”的词根)。合起来强调“沿正交方向呈现不同性质”的概念,因此用于描述在三条互相垂直主方向上性质不同的材料。

相关词 Related Words

文学与作品 Literary Works

  • Theory of Elasticity(Timoshenko & Goodier)弹性力学经典教材中常讨论各向异性/正交各向异性材料模型。
  • Mechanics of Composite Materials(Robert M. Jones)复合材料力学中“orthotropic lamina/laminate(正交各向异性单层/层合板)”为核心术语。
  • An Introduction to Composite Materials(Hull & Clyne)介绍复合材料时常用 orthotropic 描述层合结构的方向性性能。
  • Anisotropic Plates(S. G. Lekhnitskii)研究各向异性与正交各向异性板理论的代表性著作之一。
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