非定常履歴単軸構成法則とその部材解析への適用 : その 1 応力-歪経路のパターン分類と構成法則

概要

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A complete set of uniaxial constitutive relations has been formulated on the basis of the non-stationary hysteretic uniaxial stress-strain relations in Ref. [6] and [8] due to the senior author. While Ref. [6] has provided empirical formulae for determining the parameters in a Ramberg-Osgood representation of a smooth piece of stress-strain curves, some postulates and tentative assumptions have to be introduced for applications of the formulae to various possible series of successive path pieces. In order to provide a complete transition law from one smooth path piece to the next, a detailed classification of path patterns has been made and necessary ingredients of a computer subroutine of the constitutive law have been clarified. A brief explanation has been included of a method of generating incremental member stiffness matrices to be incorporated in a computer program for frame analysis.
1981-02-28