Scanning electron fractography of lap‐shear joints
作者:
Roy C. Wilcox,
Wartan A. Jemian,
期刊:
Polymer Engineering&Science
(WILEY Available online 1973)
卷期:
Volume 13,
issue 1
页码: 40-45
ISSN:0032-3888
年代: 1973
DOI:10.1002/pen.760130107
出版商: Society of Plastics Engineers, Inc.
数据来源: WILEY
摘要:
AbstractFracture surfaces of Epon 901/B‐3 bonded aluminum alloy joints in the lap‐shear configuration were studied using scanning electron microscopy. Major differences in the appearance of the fracture surface from those reported (8) for tensile loaded joints at 23°C are produced either by cyclic loading at 23°C or a change in test temperature to −196°C. Fracture in tensile loaded joints at −196°C is a brittle single step process in the opening mode in which rapid crack extension occurs throughout the joint with very little adhesive flow. Tensile fatigue fracture at 23°C is in the opening mode but crack extension is complicated by extensive adhesive flow throughout the
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