verity焊接结构疲劳评估教程PowerPoint 演示文稿.ppt

K.Frank在UTA所做实验(2004);实体刚度测试 (Frank,2004);实体大梁的四点弯曲测试（Fisher）;基于结构应力的相关性测试 (Fisher, 1971);DOT实体测试汇总;How About Correlation with the Master S-N Curve?;焊态、UIT数据(Frank, 2003-2004)与主S-N 曲线;Test Data Analysis of Tubular K joints --UKOSRP II;管接头测试数据(UKOSRP II)与JIP主S-N曲线的关系;铝合金MIG焊缝(Ford提供数据);铝合金激光焊的主S-N曲线(Ford提供数据);基于断裂力学和S-N曲线进行疲劳寿命评估的等效性;初始裂纹尺寸对寿命的影响;总 结;Structural Stress Modeling Procedure and Life Prediction;基于结构应力的寿命预测程序;失效定义;“Hot Spot” Definitions in HSS Stress Methods versus “Weld Line” Definitions in SS Method;焊缝表现形式不同造成的影响;Weld Line Definitions for Edge Details: Small Lab Specimens versus Structural Joints;Weld Line Curvature Considerations;Weld Toe Failure Mode vs Weld Representation;A Simple Shear Correction Scheme for Models W/O Representing Weld: A Tubular T Joint;Fillet Weld Representations: Small Fillets or between Drastically Different Thicknesses;Load-Controlled versus Displacement- Controlled Conditions;S-N Data from Tests;Implications on Fatigue Test Procedures ;Failure Criteria for Fatigue Evaluation Using Master S-N Curve and Testing;Stiffness/Compliance Monitoring and Final Failure Determination – MIG Weld Example;Specimen Designs and Loading Modes;Data Documentation/Reporting;Importance of Grip Positions – Unsymmetric Specimens;Fatigue Life Evaluation Procedures Using the Structural Stress Method - Shell/Plate Models;Fatigue Evaluation Example 1: Yagi’s Tests;Finite Element Modeling and Structural Stress Analysis;Correlate Yagi’s Test Results with Master S-N Data;Component Validation Tests;Component Test Results versus S-N Data from Small Specimens;2003 SAE FDE “Fatigue Challenge” Blind Life Prediction;Mesh-Insensitivity Demonstration – The Structural Stress Method;Comparison of Predicted and Actual Test Results;A 2nd SAE Weld Challenge: Variable Amplitude Loading ;FE Models: SAE Weld Challenge 2A versus First (Challenge 1) ;Identification of Critical Locations after Searching Two Weld Toe Lines ;Two Variable Amplitude Loading Cases Tested and Predi