Failure of a heavy-duty hydraulic cylinder and its fatigue re-design

被引：13

作者：

Nicoletto, Gianni ^{[1
]}

Marin, Tito ^{[1
]}

机构：

[1] Univ Parma, Dept Ind Engn, I-43100 Parma, Italy

来源：

ENGINEERING FAILURE ANALYSIS | 2011年 / 18卷 / 03期

关键词：

Hydraulic equipment; Fatigue design; Weld; Fatigue crack growth; Finite element method; CRACK-GROWTH;

D O I：

10.1016/j.engfailanal.2010.12.019

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The unexpected in-service failure of a heavy-duty hydraulic cylinder motivated the present investigation. The combined use of fracture mechanics concepts and of the finite element method demonstrated that part failure was due to the specific weld joint solution between cylinder and end-cap and the fatigue life predictions correlated with the estimated service life before crack detection. Alternative designs involving modified end cap geometry were developed and demonstrated to achieve a considerably longer operational life. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1030 / 1036

页数：7

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