| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling and Simulation: Microstructure, Mechanics, and Process
|
| Presentation Title |
Inherent Strain Method for Residual Stress Prediction in Ferritic-austenitic Steel Structure Fabricated by Directed Energy Deposition |
| Author(s) |
Zhengtong Shan, Minh Tien Tran, Huai Wang, Sun-Kwang Hwang, Dong-Kyu Kim |
| On-Site Speaker (Planned) |
Zhengtong Shan |
| Abstract Scope |
The present study investigated the inherent strain method for residual stress prediction in ferritic-austenitic steel structure fabricated by directed energy deposition. A coupled thermo-mechanical analysis of a micro-scale model was applied to obtain the inherent strains for analysis of residual stress. The predicted residual stress is in good agreement with experiment results measured by the contour method and neutron diffraction. Furthermore, the effect of dissimilar structures and scanning strategy on the residual stress is discussed in this study. |