FRACTURE STUDIES ON A POLYACETAL NEW THERMOPLASTIC POLYURETHANE BLEND

被引：15

作者：

JOHN, R ^{[1
]}

NEELAKANTAN, NR ^{[1
]}

SUBRAMANIAN, N ^{[1
]}

NAIR, EMS ^{[1
]}

机构：

[1] COCHIN UNIV SCI & TECHNOL,DEPT SHIP TECHNOL,COCHIN 682022,INDIA

来源：

POLYMER ENGINEERING AND SCIENCE | 1992年 / 32卷 / 01期

关键词：

D O I：

10.1002/pen.760320105

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Studies based on fracture mechanics have been made on polyacetal toughened with a synthesized thermoplastic polyurethane. The effects of elongation rate and defects like holes and notches on tensile properties have been investigated. Using three-point bending specimens, fracture mechanics parameters such as strain energy release rate, G, Rice's contour integral, J, and fracture toughness, K have also been determined under plain stress conditions. The mechanical loss from the hysteresis curves, and ductile, brittle fractography using scanning electron microscopy have also been studied.

引用

页码：20 / 26

页数：7

共 12 条

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