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Pure shear
In mechanics and geology, pure shear is a three-dimensional homogeneous flattening of a body. It is an example of irrotational strain in which a body is elongated in one direction while being shortened perpendicularly.〔(【引用サイトリンク】title=Pure shear )〕 For soft materials, such as rubber, a strain state of pure shear is often used for characterizing hyperelastic and fracture mechanical behavior. 〔(【引用サイトリンク】title=Where do the Pure and Shear come from in the Pure Shear test? )〕 〔(【引用サイトリンク】title=Comparing Simple Shear and Pure Shear )〕 == Pure shear stress-strain relation == Pure shear stress, denoted , is related to pure shear strain, denoted , by the following equation:〔(【引用サイトリンク】title=Strength of Materials )〕
where is the shear modulus of the material, given by
Here is Young's modulus and is Poisson's ratio. Combining gives
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Pure shear」の詳細全文を読む
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