2026-03-10T15:55:09Z https://u-ryukyu.repo.nii.ac.jp/oai

oai:u-ryukyu.repo.nii.ac.jp:02002273 2022-02-14T21:30:51Z 1642837622505:1642837957109:1642837957989 1642838403551:1642838406414

Finite Element Formulation of a Linear Viscoelastic Material Hayashi, Daigoro 林, 大五郎 open access Rock bodies are assumed to be composed of a two elements Maxwell and a generalized Maxwell model. The finite element formulation of these two viscoelastic materials is that viscous term within constitutive equation of the materials is regarded as initial strain and the unknown displacements are calculated for suitable time interval by the stiffness equation which is derived from the variational principle of elasticity. The resultant computer program of the two elements Maxwell model is adopted to a simple problem of stress response in order to be tested. Numerical and analytical solutions fit well together. It is interesting that tensile stress is observed parallel to contractive strain in this test. 紀要論文 琉球大学理学部 eng departmental bulletin paper VoR http://hdl.handle.net/20.500.12000/2630 http://hdl.handle.net/20.500.12000/2630 https://u-ryukyu.repo.nii.ac.jp/records/2002273 0286-9640 AN00250774 琉球大学理学部紀要 Bulletin of the College of Science. University of the Ryukyus 29 63 80 https://u-ryukyu.repo.nii.ac.jp/record/2002273/files/No29p63.pdf