[1]赵鹏强,李云鹏,刘鹏亮,等.基于SiPESC的焊缝疲劳分析模块开发[J].地震工程与工程振动,2019,39(06):068-74.[doi:10.13197/j.eeev.2019.06.68.zhaopq.010]
 ZHAO Pengqiang,LI Yunpeng,LIU Pengliang,et al.Design and development of weld fatigue analysis based on SiPESC[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(06):068-74.[doi:10.13197/j.eeev.2019.06.68.zhaopq.010]
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基于SiPESC的焊缝疲劳分析模块开发
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年06
页码:
068-74
栏目:
论文
出版日期:
2019-12-31

文章信息/Info

Title:
Design and development of weld fatigue analysis based on SiPESC
作者:
赵鹏强1 李云鹏1 刘鹏亮1 陈玉震2
1. 大连理工大学 运载工程与力学学部 工业装备结构分析国家重点实验室, 辽宁 大连 116024;
2. 山东国舜建设集团有限公司, 山东 济南 250000
Author(s):
ZHAO Pengqiang1 LI Yunpeng1 LIU Pengliang1 CHEN Yuzhen2
1. Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China;
2. Shandong Guoshun Construction Group Co., Ltd, Jinan 250000, China
关键词:
焊接结构疲劳SiPESC有限元法结构应力法结构疲劳
Keywords:
fatigueweld fatigueSiPESCstructural stress methodfinite element method
分类号:
U467.4+97
DOI:
10.13197/j.eeev.2019.06.68.zhaopq.010
摘要:
焊缝处由于存在应力集中、焊接缺陷、残余应力等影响,是焊接结构的疲劳薄弱环节。结构应力法相较于传统的疲劳评估方法,具有SN曲线数据离散性小、网格不敏感等特点,已被纳入ASME标准。国内对结构应力法的应用基本为直接使用国外商业疲劳分析软件fesafe或对商业有限元软件进行二次开发。本文基于SiPESC平台开发了结构应力法焊缝疲劳分析模块,程序具备了雨流计数法,SN材料库,损伤累积,单通道及多通道载荷谱定义,平均应力修正等通用疲劳分析功能,具有一定的通用性。同时,结构应力法模块可支持同阶数同自由度混合壳或实体单元焊缝定义,支持焊线处节点单元自动排序。后续的其他算法和功能可在SiPESC平台通过插件的方式动态添加,具有良好的开放性。通过与国外商业软件的算例结果对比,验证了本文所开发的程序计算结果的精确性。
Abstract:
Due to the influence of stress concentration, welding defects and residual stress, the welding seam is the weak point of the welding structure. Compared with the traditional fatigue assessment method, the structural stress method has the characteristics of smaller SN curve data dispersion and less grid sensitivity, and has been included in the ASME standard. Domestic application of structural stress method is basically to directly use foreign commercial fatigue analysis software fesafe or secondary development of commercial finite element software. Based on SiPESC platform, this paper developed a fatigue analysis module of weld seam based on structural stress method. The program has such general fatigue analysis functions as rain flow counting method, SN material database, damage accumulation, single channel and multi-channel load spectrum definition, average stress correction and so on, which have certain universality. At the same time, the structural stress method module can support the definition of welding seam of mixed shell or solid element with the same order and degree of freedom, and support the automatic sequencing of node element at welding line. The following other algorithms and functions can be added dynamically in SiPESC platform by means of plug-in, which has good openness.Compared with the results of commercial software in other countries, the accuracy of the program developed in this paper is verified.

参考文献/References:

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[2] AWS D1.1/D1.1M:2015. Structural welding code-steel[S]. American Weld Society. NewYork:AWS. 2015.
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[11] 张洪武, 陈飙松, 李云鹏, 等. 面向集成化CAE软件开发的SiPESC研发工作进展[J].计算机辅助工程, 2011, 20(2):39-49. ZHANG Hongwu, CHEN Biaosong, LI Yunpeng, et al. Advancement of design and implementation of SiPESC for development of integrated CAE software systems[J]. Computer Aided Engineering, 2011, 20(2):39-49. (in Chinese)
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备注/Memo

备注/Memo:
收稿日期:2019-09-20;改回日期:2019-10-22。
基金项目:国家重点研发计划项目(2016YFB0200702);国家自然科学基金项目(11761131005);111引智计划(B14013)
作者简介:赵鹏强(1994-),男,硕士研究生,主要从事焊接疲劳研究.E-mail:pengqiang_zhao@mail.dlut.edu.cn
通讯作者:李云鹏(1970-),男,副教授,硕士,主要从事开放式数值仿真平台开发研究.E-mail:lyp@dlut.edu.cn
更新日期/Last Update: 1900-01-01