请求帮助翻译一下（工学）

来源：百度知道 编辑：UC知道 时间：2024/05/28 06:13:14
疲劳破坏是焊接钢结构最主要的失效方式。据资料统计，70%~90%的
焊接钢结构失效是由于焊接接头的疲劳断裂引起的，疲劳破坏在一定程度上限制了焊接钢结构的应用范围。本文通过有限元数值模拟研究CFRP(碳纤维增强复合材料)对焊接钢结构疲劳性能的加固效果。
本文回顾了疲劳问题的基本理论，介绍了用ANSYS分析CFRP加固焊接钢结构疲劳试验的整个过程，先进行热—结构分析得出焊缝的残余应力结果，而在残余应力的基础上进行疲劳分析。本文还列出了ANSYS计算结果，并与之前许世文学长的试验研究结果进行了比较，并对比较结果进行了误差分析。
分析结果表明，cfrp的加固对带焊缝钢梁有明显的加固作用，张贴cfrp的层数越多其加固的效果越明显，但其结果和许世文学长的试验研究结果有明显差异。

The fatigue failure is the welded steel structure most main expiration way. According to the material statistics, 70%~90% the welded steel structure expiration is because weld joint's endurance failure causes, the fatigue failure has limited the welded steel structure application scope to a certain extent. This article studies CFRP through the finite element numerical simulation (carbon fiber to strengthen compound materials) the butt weld steel structure weary performance reinforcement effect. this article reviewed the weary question elementary theory, introduced analyzes the CFRP reinforcement wrought steel structure endurance test with ANSYS the entire process, carries on the hot - structure analysis to obtain welded joint's residual stress result first, but carries on the fatigue analysis in residual stress's foundation. This article has also listed the ANSYS computed result, and school leader's experimental study result has carried on the comparison before Xu Sh