On Absence of Quantitative Correlations Between Strength and Stiffness in Microcracking Materials

被引：17

作者：

Caiulo, Anthony ^{[1
]}

Kachanov, Mark ^{[1
]}

机构：

[1] Tufts Univ, Dept Mech Engn, Medford, MA 02155 USA

来源：

INTERNATIONAL JOURNAL OF FRACTURE | 2010年 / 164卷 / 01期

关键词：

microcracks; strength; stiffness; fracture; ORIENTATION; STATISTICS; CRACKS;

D O I：

10.1007/s10704-010-9486-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show, by numerical simulations on crack arrays, that there is no stable quantitative correlation between strength of a brittle microcracking material and its effective elastic stiffness. The reason is that fracture processes are controlled by "details" of microcrack field geometry - such as local clusters of closely spaced cracks - to which the stiffness, being a volume average quantity, is almost insensitive.

引用

页码：155 / 158

页数：4

共 9 条

[1]

[Anonymous], ADV AEROSPACE STRUCT

[2]

CAIULO AP, 2009, THESIS TUFTS U

[3] SLIGHTLY CURVED OR KINKED CRACKS [J].