复合材料气瓶的多轴疲劳寿命预测研究

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (11): 39-45.

复合材料气瓶的多轴疲劳寿命预测研究

黄其忠^1,3, 郑津洋², 胡军¹, 任明法⁴

1.大连市锅炉压力容器检验研究院,大连116006;
2.浙江大学化学工程与生物工程学院,杭州116024;
3.北京玻钢院复合材料有限公司,北京102101;
4.大连理工大学运载工程与力学学部,大连116024

收稿日期:2016-05-25 出版日期:2016-11-30 发布日期:2016-11-30
作者简介:黄其忠(1983-),男,博士,高级工程师,主要从事复合材料结构设计方面的研究,qizhongh@126.com。

RESEARCH ON THE FATIGUE LIFE PREDICTION OF COMPOSITE VESSEL UNDER MULITA-AXIAL LOADING

HUANG Qi-zhong^1,3, ZHENG Jin-yang², HU Jun¹, REN Ming-fa⁴

1.Dalian Institute of Inspection and Research for Boiler and Pressure Vessel, Dalian 116006, China;
2.College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 116024, China;
3.Beijing Composite Materials Co., Ltd., Beijing 102101, China;
4.Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China

Received:2016-05-25 Online:2016-11-30 Published:2016-11-30

摘要/Abstract

摘要： 采用等效应变法计算气瓶疲劳寿命的ASME压力容器规范,不能考虑多轴非比例加载效应,具有明显的不足。针对复合材料气瓶,采用修正的Brown-Miller算法研究其多轴低周疲劳寿命,并分析了自紧压力、金属内衬厚度和单层缠绕层厚度对复合材料气瓶疲劳寿命的影响,给出了提高复合材料气瓶疲劳寿命的方法。

关键词: 复合材料气瓶, 多轴疲劳, 疲劳寿命预测, 有限元法

Abstract: There are obvious disadvantages in the ASME pressure vessel code, which is used to calculate the fatigue life of cylinders by the adoption of equivalent strain method, because it cannot take account of the multi-axial non-proportional loading effect. This paper studies the multi-axial low-cycle fatigue life of composite cylinders by adopting the corrected Brown-Miller algorithm as well as the effect of autofrettage pressure, metal liner thickness and single layer thickness on the composite cylinders′ fatigue life, and gives a method for increasing the composite cylinders′ fatigue life.

Key words: composite cylinder, multi-axial fatigue, fatigue life prediction, finite element method

中图分类号:

TB332

黄其忠, 郑津洋, 胡军, 任明法. 复合材料气瓶的多轴疲劳寿命预测研究[J]. 玻璃钢/复合材料, 2016, 0(11): 39-45.

HUANG Qi-zhong, ZHENG Jin-yang, HU Jun, REN Ming-fa. RESEARCH ON THE FATIGUE LIFE PREDICTION OF COMPOSITE VESSEL UNDER MULITA-AXIAL LOADING[J]. Fiber Reinforced Plastics/Composites, 2016, 0(11): 39-45.

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