Authors: Xizhang Chen Zhili Feng
Publish Date: 2017/01/16
Volume: 61, Issue: 2, Pages: 307-314
Abstract
The in situ strain field measurement during a tungsten inert gas welding of 1 mmthick stainless steel butt joint was evaluated by threedimensional digital image correlation DIC The experiments were designed to measure the strain evolution in the vicinity of the weld pool from the backside of the steel plate to prevent intense welding arc from deteriorating digital image quality and also provided a way to measure transient strain field during welding especially for welding of thin materials The in situ strain field under different welding parameters in the vicinity of weld was analyzed The strain evolution around 5 mm away from the weld center line could be measuredThis research was sponsored by the US Department of Energy Office of Nuclear Energy for the Light Water Reactor Sustainability Research and Development Effort under a prime contract with Oak Ridge National Laboratory ORNL ORNL is managed by UTBattelle LLC for the US Department of Energy under Contract DEAC0500OR22725 This research was also supported in part by the National Natural Science Foundation of China under Grant No 51575401 and the National Natural Science Foundation of Zhejiang under Grant No LY16E050007 The authors would like to thank Dr Wei Zhang at the Ohio State University for the fruitful discussion The authors also appreciated Mr David Alan Frederick Dr Jian Chen Dr Yanli Wang and Dongxiao Qiao for their support on the welding setup and sample preparation
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