摘要
以缺口件为研究对象 ,根据J积分理论 ,对Dowling法进行了改进 ,并根据疲劳非扩展裂纹的性质 ,给出裂纹萌生尺寸的定义 。
The notch specimen was used as researching objects. The Dowling method was modified according to J -integral theory. The definition of fatigue crack initiation size and the determining method was introduced.
出处
《冶金标准化与质量》
2002年第3期6-10,共5页
Metallurgical Standardization & Quality
关键词
裂纹萌生尺寸
短裂纹
非扩展裂纹
J积分
疲劳
fatigue crack initiation size
fatigue short crack
non-propagation crack
J-integral
