Analysis of Gun Tube External Defects and Research on Evaluation System

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外文摘要：The effect of the pit which is one of the gun tube external defects upon the gun tube life was studied。 The stress concentration factor of the gun tube was defined。 The three-dimensional FEM software NASTRAN and one-dimensional linear regression were used to calculate the stress distribution of the pit。 Finally the three-dimensional linear regression was used to fit the formula for calculating the maximum stress intensity in the pit of the gun tube。

外文关键词：

gun tubepitfinite element analysisstress concentration factor

作者：

Zhibin Xie、Jinkuan Wang、Jing Gao、Yun Wang、Dongmei Yan

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作者单位：

School of Information Science & Engineering,Northeastern University

会议名称：

ISTM/2007;International symposium on test and measurement

会议地点：

Beijing(CN);Beijing(CN)

会议母体文献：

7th international symposium on test and measurement (ISTM/2007)

页码：

1-4

出版时间：

2007