铁路道岔滑床板焊缝宏微观力学特征分析  

Mechanical characteristics analysis for weld joint of sliding baseplate of railway turnouts under macro-micro scales

作　　者：史龙波 Shi Longbo(China Railway Baoji Bridge Group Co.,Ltd.,Baoji 721006,China)

机构地区：[1]中铁宝桥集团有限公司,陕西宝鸡721006

出　　处：《山西建筑》2022年第2期130-132,共3页Shanxi Architecture

摘　　要：借助数值模拟分析方法,利用子模型技术,以道岔滑床板为研究对象,分析讨论了滑床板焊缝力学特征,完成的主要研究工作如下:利用有限元数值模拟方法,获取滑床板台板与底板连接焊缝的危险区域;焊缝形貌对滑床板台板与底板连接焊缝强度的影响分析;焊缝预设裂纹位置对滑床板台板与底板连接焊缝强度J积分的影响分析。This article adopts the numerical simulation analysis method and the sub-model technique to make research and analysis on the mechanical characteristics for weld of sliding baseplate and achieve the following research works:locating the dangerous area of weld of sliding chair and sliding support plate by means of the numerical simulation analysis method;impact analysis on strength of weld of sliding chair and sliding support plate by means of the weld appearance;impact analysis on J integration of weld of sliding chair and sliding support plate by means of the presupposed weld crack position.

关 键 词：滑床板 焊缝 子模型 力学特征 J积分 

分 类 号：U213.6[交通运输工程—道路与铁道工程]