On the micromechanical modelling of the viscoplastic behavior of single crystal superalloys

被引：0

作者：

Chaboche, JL ^{[1
]}

Lhuillier, S ^{[1
]}

Nouailhas, D ^{[1
]}

机构：

[1] Off Natl Etud & Rech Aerosp, F-92320 Chatillon, France

来源：

IUTAM SYMPOSIUM ON TRANSFORMATION PROBLEMS IN COMPOSITE AND ACTIVE MATERIALS | 1998年 / 60卷

关键词：

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A micro-macro modeling of the single crystal viscoplasticity behavior is discussed, based on a composite approach and continuum mechanics based constitutive equations at the level of the precipitate gamma' and matrix gamma. It is shown how such an approach cannot simulate correctly both the tensile and shear loading conditions. An attempt is done that reconciliate the two loading conditions, by introducing a volumetric term in the gamma viscoplastic strain in order to redistribute the hydrostatic pressure in the matrix channels.

引用

页码：33 / 44

页数：12

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