Experimental and numerical study of creep properties of aluminum syntactic foams

被引：0

作者：

Couteau, Olivier ^{[1
]}

Dunand, David C. ^{[2
]}

机构：

[1] Northwestern Univ, 2220 Campus Dr, Evanston, IL 60208 USA

[2] Commiss European, Inst Reference Mat & Measurement, B-2440 Geel, Belgium

来源：

SOLIDIFICATION PROCESSING OF METAL MATRIX COMPOSITES - ROHATGI HONORARY SYMPOSIUM | 2006年

关键词：

syntactic foam; aluminum; creep; finite element modeling;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Aluminum syntactic foams with densities of 1.4-1.6 g/cm(3) exhibit exceptionally high compressive creep resistance up to 500 degrees C. Their creep behavior is characterized by a short primary-like regime, followed by a long secondary-like behavior, where the strain rate is minimum, and, at high stresses, a ternary-like behavior. The minimum strain rate varies with stress according to an apparent stress exponent, which takes a value of unity for stresses below 9 MPa, and a value of 14 above 9 MPa. Finite-element modelling provides predictions that are in semi-quantitative agreement with these results.

引用

页码：157 / +

页数：2

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