钢轨踏面斜裂纹模拟再现试验研究_交通物流毕业论文_毕业论文网 关键词：钢轨 斜裂纹 接触疲劳 [gap=502]Keywords: Rail, Oblique crack, Contact fatigue
基于168个网页-相关网页
As a type of rail defects, rail tread oblique crack has been paid extensively attentions in recent years. It will cause rail transversal failure and endanger the traveling safety if it severely develops.
钢轨踏面斜裂纹属于钢轨疲劳伤损，是近年来反映突出的钢轨伤损类型之一，发展严重时将导致钢轨的横向断裂而危及行车安全，国外及国内已发生多起由踏面斜裂纹导致钢轨横向断裂的事故。
参考来源 - 钢轨踏面斜裂纹扩展行为的仿真研究The finite element software ANSYS was expanded to compute SIF, computing the SIF of unilateral oblique crack, central crack, central oblique crack, cracks at hole.
4．扩展了有限元软件ANSYS计算断裂参量应力强度因子的功能，具体计算了单边斜裂纹、中心裂纹、中心斜裂纹、孔边裂纹的应力强度因子。
参考来源 - 涡轮转子接触应力分析及应力强度因子计算·2,447,543篇论文数据，部分数据来源于NoteExpress
本文提出了斜裂纹鼓胀效应修正系数公式。
In this paper we present a relation for the bulge effect factor of declivous cracks.
已计算和显示的实例有受拉伸的中心斜裂纹平板和受拉伸的边裂纹平板。
Practical examples which have been computed and displayed include the mechanical models of the cases of a centre-and edgecracked plate in tension.
选择带有空间斜裂纹的2a12铝合金试件进行了拉伸载荷作用下电磁热在线止裂研究。
A study of crack prevention under tensile load is performed on an aluminum alloy 2a12 specimen with an oblique spatial crack by using electromagnetic heating online.
应用推荐