焊接工艺参数对船用高强度钢平板残余应力的影响

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英文篇名：Effects of Welding Process Parameters on Residual Stresses of High-Strength Steel Plate for Ship 作者：谷晓梅 ; 张晓飞 ; 宋彦宏 英文作者：GU Xiaomei;ZHANG Xiaofei;SONG Yanhong;The 711th Institute of China,China Shipbuilding Industry Corporation;School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology;School of Marine Power,Army Military Transportation University; 关键词：焊接工艺参数 ; 高强度钢 ; 残余应力 ; 数值模拟 英文关键词：welding process parameter;;high-strength steel;;residual stress;;numerical simulation 中文刊名：ZGHY 英文刊名：China Offshore Platform 机构：中国船舶重工集团公司第七一一研究所;江苏科技大学船舶与海洋工程学院;陆军军事交通学院船艇动力系; 出版日期：2019-04-28 出版单位：中国海洋平台 年：2019 期：v.34;No.194 基金：国家自然科学基金资助项目(51479084) 语种：中文; 页：ZGHY201902015 页数：9 CN：02 ISSN：31-1546/TE 分类号：91-99

摘要

对船用高强度钢对接焊平板进行焊接残余应力数值模拟,采用盲孔法对其进行残余应力测量,最后在数值模拟结果与试验结果一致的基础上,研究不同焊接工艺参数对残余应力的影响。研究结果表明:焊接残余应力分布曲线形状不受焊接工艺参数变化的影响;当增大焊接电流时,焊接残余应力最大值随之增大;当焊接电流增大到一定值后,焊接残余应力最大值随电流升高而增大的趋势逐渐减缓;当焊接电流在100～110A时,焊接残余应力最大值随焊接速度加快而增大;在120～130A时,焊接残余应力最大值随焊接速度加快而逐渐变小,但其值还是远大于焊接电流在100～110A工况时的焊接残余应力。此结论为高强度钢对接焊平板的焊接工艺参数设计提供了参考,具有一定的工程应用价值。
        Numerical simulation analysis of the butt-welded plate of high-strength steel for ship is carried out.The method of blind hole is used to measure the residual stress.The influence of different welding process parameters on the residual stress is studied based on the agreement of the simulation results and the experimental results.The research results show that the shape of the distribution curve of the welding residual stress is not affected by the change of welding process parameters.However,when the welding current is increased,the maximum welding residual stress increases.When the welding current is increased to certain value,the rising trend of the maximal welding residual stress gradually slows down.When the range of welding current is from 100 Ato 110 A,the maximal value of the welding residual stress increases with the increase of the welding speed.By contract,the maximum welding residual stress gradually reduces with the increase of the welding speed under the condition from 120 Ato 130 Awelding current,but its value is far greater than that under the condition from 100 Ato 110 A welding current.The relevant conclusions provide reference for the design of welding process parameters in butt-welded plate of high-strength steel,which provides certain engineering application value.

引文

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