Numerical Simulation and Test Study on Non-Preheating Welding Technology of HSLA Q550 Applied to Hydraulic Structures

Hui Yang; Jing Ling Wang; Yong Fei Hao

doi:10.4028/www.scientific.net/AMR.546-547.110

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 546-547Numerical Simulation and Test Study on...

Numerical Simulation and Test Study on Non-Preheating Welding Technology of HSLA Q550 Applied to Hydraulic Structures

Abstract:

In this paper, weld stress field of Non-preheating with t-joint weld process of high strength low alloy steel Q550 is simulated applying the coupling analysis of temperature and stress field in finite element method(FEM) software ANSYS. The research proves that weld joins can achieve equal strength with the base metal using low alloy high strength steel flux-cored welding wire PK-YJ707A of low hydrogen slag type system. Impact absorbing energy comes up with 107J at -20°C and comes up with 80J at -40°C. After the results of bending, the weld joins have no crack or smaller than 3mm. The mechanical property meets the requirements of the HSLA Q550. In addition, the simulation result is able to more accurately predict the welding stress field that can provide theoretical basis for guiding production practices, reducing cost and improving working environment.

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Periodical:

Advanced Materials Research (Volumes 546-547)

Pages:

110-114

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.546-547.110

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Online since:

July 2012

Authors:

Hui Yang, Jing Ling Wang, Yong Fei Hao

Keywords:

Finite Element Method (FEM), HSLA Q550, Non-Preheating Weld, Numerical Simulation, Stress Field

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