基于奇异强度理论的135度板角应力评估研究

武汉理工大学学报 Pub Date : 2013-12-01 DOI:10.3963/J.ISSN.1671-4431.2013.12.015

Song S. Gao, Li L. Xu, Dazheng Wang, N. Barltrop

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引用次数: 2

摘要

本文将基于缺口应力强度因子(N-SIF)理论，研究135度薄板角部应力分布的奇异强度理论。将N-SIF公式简化为奇异强度as与结构尺寸相关。利用ANSYS进行了数值模拟，并用MathCAD进行了回归分析。最后提出了一种简单的缺口应力评估算法和经验公式，并进行了验证。研究结果可用于结构强度和疲劳分析。

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Research of stress assessment for the 135-degree sheet corner based on singularity strength theory

This paper will research the singularity strength theory to stress distribution of a 135-degree sheet corner which bases on notch stress intensity factor (N-SIF) theory. The N-SIF formula is simplified through singularity strength 'as' which is related to structure size. Numerical simulations by ANSYS and regression analysis by MathCAD are done for a number of cases. Finally a simple assessment algorithms and the empirical formula for the notch stress are proposed and verified. The results can be used for structural strength and fatigue analysis.

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来源期刊

武汉理工大学学报

CiteScore

0.30

自引率

0.00%

发文量

10998

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