Strain - Strain

Japanese: ひずみ(歪) - ひずみ

The change in shape or volume that occurs when an external force is applied to an object. In other words, it refers to the change in the relative positions of each point within an object, and does not include the movement or rotation of the entire object. It can be divided into longitudinal or normal strain (the amount of expansion or contraction caused by the deformation of a line segment of unit length considered within an object), shear or tangential strain (the angle at which two mutually perpendicular planes considered within an object are tilted from their original right angle after deformation), and volumetric strain (the amount of increase or decrease caused by the deformation of a unit volume considered within an object). →Poisson's ratio/strain meter→Related topics: Modulus of rigidity | Elasticity | Torsion test

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

物体に外力を加えたとき現れる形や体積の変化。つまり物体内の各点の相互位置の変化をいい，物体全体の移動や回転を含めない。縦ひずみまたは垂直ひずみ（物体内に考えた単位長さの線分の変形による伸縮量），せん断ひずみまたは接線ひずみ（物体内に考えた互いに垂直な二平面が変形後もとの直角から傾いた角度），体積ひずみ（物体内に考えた単位体積の変形による増減量）などに分けられる。→ポアソン比／ひずみ計
→関連項目剛性率｜弾性｜ねじり試験

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