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.
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页码：155 / 158
页数：4
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