@article{oai:u-ryukyu.repo.nii.ac.jp:02005038, author = {Hayashi, Daigoro and 林, 大五郎}, issue = {88}, journal = {琉球大学理学部紀要, Bulletin of the College of Science. University of the Ryukyus}, month = {Sep}, note = {2D elastoplastic FE program has been developed in 2002 (Hayashi, 2002). Improved FE program was applied to the Umaoi hills in Hokkaido, Japan to estimate plate convergence rate (Morishita and Hayashi, 2005; Hayashi and Morishita, 2006). This FE elastoplastic software is derived from 2D von Mises' plastic theory. The detail of elastoplastic theory and FE formulation are explained in this paper., 紀要論文}, pages = {9--13}, title = {Theoretiacal basis of elastoplasticity in FE software package}, year = {2009} }