SA-11-3(047) THE DEVELOPMEENT OF MULTI-AXIAL CREEP DAMAGE CONSTITUTIVE EQUATIONS FOR 0.5Cr0.5Mo0.25V FERRETIC STEEL AT 590℃(Inelastic Modeling & Analysis 1)

概要

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Within the framework of phenomenological approach a set of mutli-axial creep damage constitutive equations for 0.5Cr0.5Mo0.25V ferretic steel at 590℃ is developed in which a new formulation was employed. The deficiency of previous formulation and the need for improvement became apparent after a critical review of the development of creep damage constitutive equations for 316 stainless steel [1]. The need for improvement was further underpinned by a call for modification of constitutive equations. Recently, a specific formulation was proposed and validated [2-4]. This paper reports the latest development conducted by this author in the development of multi-axial creep constitutive equations for 0.5Cr0.5Mo0.25V ferretic steel at 590℃ including : 1) the fundamental requirement ; 2) formulation ; 3) validation ; and 4) conclusion. It systematically shows the suitability of this new set of constitutive equation and incapability of previous one. Furthermore, it contributes knowledge to the methodology.
一般社団法人日本機械学会の論文
2001-06-03