2 弾塑性劣化型ばねをもつ単純柱モデルの整合剛性形成問題

概要

論文の詳細を見る
In the numerical analysis of the elastic-plastic behavior of a discrete model of structure, the stiffness matrix consistent with the constitutive law must be generated. A conventional iterative procedure for generating consistent stiffness matrix of a structure model with elastic-deteriorating plastic elements frequently leads to a pitfall of cyclic process. The recurrent process is investigated by use of a simple column model with bilinear deteriorating springs. This paper shows that the recurrent selecting process occurs on condition that no solution is satisfied with a given increment of the prescribed control variable. The execution of the numerical analysis needs the appropriate selection of the control variable. Moreover, the confirmation of positive definite of the elastic stiffness matrx is very important.
一般社団法人日本建築学会の論文
1998-03-20