平面应力断裂力学

IMECH-IR > 力学所知识产出(1956-2008)

	平面应力断裂力学
	王自强
Source Publication	力学情报
	1977
Issue	2 Pages:1-29
ISSN	1000-0992
Abstract	<正> 薄板、薄壳和各种型式的薄壁结构是工程实际中广泛采用的承载结构。这种结构表面裂纹及穿透裂纹的断裂分析是个相当复杂的问题。平面应力断裂力学主要解决穿透裂纹的断裂分析。因为薄板、薄壳的壁很薄,板厚(壳厚)相对于其他尺寸小一个至几个数量级。而前后板面是不受力的自由表面。因此,所有与板面平行的面元都可以近似看作不受应力作用。如图1所示,相当于z方向应力σ_z、τ_(xy)、τ_(yz)近似为零。也就是说,
Keyword	平面应力断裂力学 Dugdale模型应力强度因子断裂韧性表面裂纹断裂理论穿透裂纹裂纹长度
Language	中文
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/38778
Collection	力学所知识产出(1956-2008)
Corresponding Author	王自强
Recommended Citation GB/T 7714	王自强. 平面应力断裂力学[J]. 力学情报,1977,2,:1-29.
APA	王自强.(1977).平面应力断裂力学.力学情报(2),1-29.
MLA	王自强."平面应力断裂力学".力学情报 .2(1977):1-29.

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