本书以有限元法为主要手段研究了DP980双相高强度钢板的激光弯曲成形特性。主要研究了激光工艺参数(功率、扫描速度、线能量)和板材尺寸(长度、宽度和厚度)对该种钢板在激光弯曲成形中的温度和弯曲角度的影响。此外,对于激光多次重复扫描的情况,研究了不同扫描路径对相同板材成形角大小的影响,提出了提高成形效率的最佳激光扫描方式。本书力图从应用示例出发,引出研究问题,可用于高等学校研究生和高年级本科生课程的学习与研讨,也可供信息处理领域技术人员参考。
Introduction
1.1 Research Background
1.2 Laser Forming Mechanism
1.3 Research Trends and Applications
1.4 Research Motivation and Objectives
1.5 Outline of the Paper
2 Theory of Finite Element Analysis
2.1 Introduction
2.2 Finite Element Method(FEM)
2.3 Thermal Problem
2.4 Structural Problem
2.5 Summary
3 Finite Element Modeling and Experimental Verification of Laser Forming Process
3.1 Introduction
3.2 3D Finite Element Modeling
3.3 Experimental Verification
3.4 Summary
4 Finite Element Analysis of One-time Laser Scanning
4.1 Introduction
4.2 Analysis of Laser Parameter Effect
4.3 Analysis of Specimen Size Effect
4.4 Summary
5 Analysis of Scanning Pattern Effect in Multi-time Laser Scanning
5.1 Introduction
5.2 Two-time Scanning Analysis
5.3 Three-time Scanning Analysis
5.4 Summary
6 Conclusions and Recommendations
6.1 Conclusions
6.2 Recommendations
Appendix A Overview of Laser
A.1 Properties of Laser
A.2 Types of Laser
Appendix B Lists of ABAQUS Computer Program
B.1 Finite Element Analysis of One-time Laser Scanning Process
B.2 User Subroutine for the Gaussian-distributed Heat Source Model
References
Acknowledgement