著者

渡辺 浩志 久田 俊明 野口 裕久

出版者

一般社団法人日本機械学会

雑誌

日本機械学会論文集A編 (ISSN:03875008)

巻号頁・発行日

vol.59, no.557, pp.183-190, 1993

被引用文献数

4 1

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'Kinking' is known as an unstable behavior of a twisted slender rod, which occurs after the torsional buckling. It is simulated by a hyper-elastic finite element code developed by the authors, with hexahedral solid elements. The mechanical characteristics and the criterion of the kinking are successfully discussed. An incompressible constraint to model a rubber-like material is introduced in the simulation by the Lagrange multiplier method and the penalty method. It is found that the former method is computationally more efficient in the case of extremely large deformation such as kinking.