fatigue evaluation meaning in English

疲劳分析/评价/估算
疲劳估算

Firstly , the analyses on the dynamical response of the tsing ma bridge ( tmb ) under traffic loading are performed on the basis of the three dimensional finite element model of the full - scale structure of the bridge , and some regions critical to fatigue damage are determined from the result of the dynamical response . the hot spot stress approach is usually adopted in the fatigue design and analysis of tubular welded joints . to apply the hot spot stress approach for the fatigue evaluation of long - span suspension bridges , the fem is further used to determine the hot spot stress of the critical fatigue locations
首先，在青马大桥三维有限元模型和整体动力响应分析计算的基础上进一步进行关键疲劳构件的局部热点应力分析，对疲劳危险部位处的焊接构件建立三维有限元模型，施加符合桥梁实际工况的载荷与位移边界条件，进行局部热点应力分析，确定这些焊接构件内的名义应力和相邻焊接区域内热点应力之间的关系，得到相应的应力集中系数。