FRACTURE PROPERTIES OF A RIGID POLYURETHANE FOAM OVER A RANGE OF DENSITIES

被引：62
作者：
MCINTYRE, A
ANDERTON, GE
机构：
[1] Department of Polymer Technology, John Dalton Faculty of Technology, Manchester Polytechnic, Manchester
来源：
POLYMER | 1979年 / 20卷 / 02期
关键词：
D O I：
10.1016/0032-3861(79)90229-5
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Single edge notch fracture tests have been carried out on rigid polyurethane foam in the density range 32 to 360 kg/m3. Fracture properties were characterized in terms of the fracture toughness parameter (KIc), the critical strain energy release rate (GIc) and crack opening displacement (c.o.d.). The values of crack opening displacement lead to a proposed mechanism of crack propagation in foams of density greater than about 140 kg/m3. © 1979.
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页码：247 / 253
页数：7
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