基于三维扫描技术的管节点疲劳热点应力集中系数分析
马永亮,张应铭,陆国庆,杨跃富,韩超帅

Analysis of stress concentration factor of fatigue hot spot for tubular joints based on 3D scanning technology
Yongliang MA,Yingming ZHANG,Guoqing LU,Yuefu YANG,Chaoshuai HAN
表 3 不同焊缝模型的应力集中系数计算误差指标对比
Tab.3 Comparison calculation error indices for stress concentration factor calculations across different weld models
试件及部位RMSEMAPE
逆向焊缝模型AWS规范焊缝模型无焊缝模型逆向焊缝模型AWS规范焊缝模型无焊缝模型
试件1支管0.672 30.798 83.479 113.393 515.768 574.758 4
试件2支管0.538 80.699 13.241 78.122 914.941 854.578 2
试件1弦管0.290 40.592 31.253 85.012 711.182 922.023 4
试件2弦管0.310 70.447 71.104 65.162 57.079 516.876 4