自然ひずみを用いた有限変形解析 : 一般変形場でのひずみ速度の定式化とその幾何学的関係

概要

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The Natural Strain is obtained by integrating infinitesimal strain increment on an identical line element over the whole process of the deformation path. Consequently, the shear strain becomes pure angular strain which is obtained by removing the rigid body rotation from the rotating angle of a line element. Since the expression of the Natural Strain is different from strain expression of ordinary rate type, the additive law of strain on an identical line element can be satisfied. In this paper, rate type expressions of the Natural Strain theory are formulated in a general deformation field. And, the method of decomposition of rigid body rotation from shearing strain component and the geometrical relation of strain rate is described.
一般社団法人日本機械学会の論文
2005-03-25