低碳钢的大应变低周疲劳

IMECH-IR > 力学所知识产出(1956-2008)

	低碳钢的大应变低周疲劳
	张以增; 李国琛; 徐明英; 杜明亮; 樊卫东
Source Publication	机械强度
	1995
Volume	17 Issue:4 Pages:49-53
ISSN	1001-9669
Abstract	对三种低碳钢的不同缺口的轴对称圆柱形试样在大应变循环下的低周疲劳行为进行了研究。以考察失效周次在１００次以内的疲劳断裂行为。结果表明随着被控循环应变幅度的增大，低碳钢的低周疲劳寿命降低，断裂模式则由疲劳解理逐渐向延性韧窝过渡。缺口处的三向应力程度以及起始循环加载的静态损伤都对最终的疲劳失效有重要的影响。建议采用一种广义的循环应变参量上来概括影响这种大应变低周疲劳的诸因素，从而可以采用修正的Ｃｏｆｆｉｎ－Ｍａｎｓｏｎ关系式描述其疲劳行为。
Keyword	低周疲劳大应变循环累积损伤疲劳寿命
Language	中文
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/35120
Collection	力学所知识产出(1956-2008)
Corresponding Author	张以增
Recommended Citation GB/T 7714	张以增,李国琛,徐明英,等. 低碳钢的大应变低周疲劳[J]. 机械强度,1995,17,4,:49-53.
APA	张以增,李国琛,徐明英,杜明亮,&樊卫东.(1995).低碳钢的大应变低周疲劳.机械强度,17(4),49-53.
MLA	张以增,et al."低碳钢的大应变低周疲劳".机械强度 17.4(1995):49-53.

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