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工程设计学报
工程设计学报  2016, Vol. 23 Issue (5): 461-467    DOI: 10.3785/j.issn.1006-754X.2016.05.009
建模、分析、优化和决策     
基于微观力学的复合材料气瓶爆破强度研究
郑传祥1, 王亮1,2, 魏双1, 王柏村1,2
1. 浙江大学 化工机械研究所, 浙江 杭州 310027;
2. 杭州乾知科技服务有限公司, 浙江 杭州 311112
Micromechanics-based burst failure analysis of composite vessel used for hydrogen storage
ZHENG Chuan-xiang1, WANG Liang1,2, WEI Shuang1, WANG Bai-cun1,2
1. Institute of Process Equipment, Zhejiang University, Hangzhou 310027, China;
2. M-Tech Science and Technology Service Co., Ltd., Hangzhou 311112, China
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摘要：

为了研究复合材料储氢气瓶在内压和温度载荷作用下的复杂失效行为，提出一种基于微观力学的气瓶渐进失效分析方法.基于微观力学失效准则，分别判断纤维和基体的损伤与失效，并采用材料刚度退化的方法模拟复合材料失效后的力学行为.此外，建立了复合材料微观力学分析模型，并提取了相应宏-微观分析参数.整个渐进失效分析过程由ABAQUS用户子程序（UMAT）实现，分析得到了复合材料气瓶在热力耦合载荷下的复杂失效模式与最终爆破强度.有限元模拟与试验结果吻合良好，说明该方法可以为复合材料储氢气瓶的设计和优化提供理论指导.
关键词： 复合材料;  储氢容器;  爆破强度;  微观力学    
Abstract:

The composite hydrogen storage vessel is directly subjected to both high pressure and temperature load during the hydrogen charging process, which contributes to the complicated failure mechanisms of the vessel structure. A micromechanics-based progressive failure analysis strategy was presented to study the complex failure behaviors of the composite vessel under thermo-mechanical loadings. An effective finite element model was developed based on the integration of micromechanics of failure (MMF) theory and material property degradation method (MPDM), where the MMF was used to predict the failure initiation at the constituent level and the MPDM was employed to account for the post failure behavior of the damaged materials. In addition, the micromechanics analysis of a typical unit cell model was performed in order to obtain the interaction information which bridged the micro-level and macro-level analysis. This micromechanics-based approach was implemented by a user-material subroutine (UMAT) in ABAQUS. Different failure patterns were obtained and the ultimate load-bearing ability of the vessel was predicted. The predictions of the model were also compared with experiments and reasonably good agreements were obtained. This work provides theoretical guidance for the safety and economical design as well as practical application of the composite vessel in fields of hydrogen fuel cell vehicles.
Key words: composite    hydrogen storage vessel    burst strength    micromechanics
收稿日期: 2015-12-24 出版日期: 2016-10-28
CLC:  TB33  
基金资助:

浙江省科技计划项目（2012C24020）.
通讯作者: 王亮(1987-),男,辽宁铁岭人,博士,从事复合材料结构强度研究,E-mail:wangliangtcdri@126.com.http://orcid.org//0000-0002-1244-2557     E-mail: wangliangtcdri@126.com
作者简介: 郑传祥(1971-),男,浙江绍兴人,教授,博士,从事复合材料结构强度研究,E-mail:zhchx@zju.edu.cn.
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引用本文:

郑传祥, 王亮, 魏双, 王柏村. 基于微观力学的复合材料气瓶爆破强度研究[J]. 工程设计学报, 2016, 23(5): 461-467.

ZHENG Chuan-xiang, WANG Liang, WEI Shuang, WANG Bai-cun. Micromechanics-based burst failure analysis of composite vessel used for hydrogen storage. Chinese Journal of Engineering Design, 2016, 23(5): 461-467.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2016.05.009    或    https://www.zjujournals.com/gcsjxb/CN/Y2016/V23/I5/461

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