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Brittle-Ductile Transition of Bridge Steels. Volume 2. Microstructural Aspects ofthe Ductile-Brittle (D-B) Transition

机译：桥梁钢的脆性 - 韧性转变。第2卷：韧性 - 脆性（D-B）转变的微观结构方面

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The transition behavior of bridge steels and weldments largely determines theirtoughness under service loading rates and temperatures. Two aspects of the transition were investigated in the project: The first was to develop a better understanding of the micro-mechanics of fracture of bridge steels and welds. The study showed that the AASHTO yield strength dependent relationship between loading rate and test temperature should be expected. The second larger study consisted of measuring the fracture toughness of A572, A588, A852 and A514 plates, and Submerged Arc Weldments, at bridge loading rates using CTOD specimens. The latter are analyzed by elastic-plastic techniques so that testing could be extended into the transition region. The tests supported an earlier FHWA

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作者
Ripling, E. J.; Crosley, P. B.; Armstrong, R. W.;
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年度 1990
页码
总页数 38
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Bridges(Structures); Fracture mechanics; Structural steels; Ductile brittletransition; Microstructure; Yield strength; Failure; Temperature dependence; Weldments; Charpy tests;

机译：桥梁（结构）;断裂力学;结构钢;韧性脆性转变;显微组织;屈服强度;失效;温度依赖性;焊件;夏比试验;

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机译：桥梁钢的脆性 - 韧性转变。第3卷。执行摘要

Brittle-Ductile Transition of Bridge Steels. Volume 2. Microstructural Aspects ofthe Ductile-Brittle (D-B) Transition

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