Liu, Yun

Meng, Yao

Ou, Wenmin

Wei, Yanhong

Zhan, Xiaohong

English

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8th International Conference on Physical and Numerical Simulation of Materials Processing (ICPNS)14–17 October 2016Seattle, Washington | Hosted by Purdue UniversitySESSION 4: WELDING AND COATING, SALON ECo-Chairs: Pingsha Dong, University of Michigan; Honggang Dong, Dalian University of Technology; Oksana I. Shpigunova, Tomsk State UniversitySUNDAY, OCTOBER 16, 2016The deformation and residual stress simulation of dual  laser-beam bilateral synchronous welding for Al-alloy aircraft panel structureXiaohong Zhan; Yun Liu; Yao Meng; Wenmin Ou; Yanhong Wei, Nanjing University of Aeronautics and  Astronautics ABSTRACTThis paper reports a numerical investigation of dual laser-beam bilateral synchronous welding (DLBSW) for T-joint structure of aircraft fuselage. Finite element numerical simulation of DLBSW is carried out to obtain suitable matching of welding parameters for civil aircraft panels that is composed of 6156 aluminum alloy skin and 6056 aluminum alloy stringer. The distribution of welding residual stress and welding distortion on the aircraft panels are predicted and discussed. Three-dimensional finite element model of the panel containing three stringers has been developed to simulate the temperature field, residual stress distribution, and welded panel distortion. It is simulated that three stringers are welded to base plate of the specimen through different welding sequences and the welding sequence with the smallest distortion is acquired.KEYWORDS: DLBSW, welding simulation, aluminum alloy, aircraft panel

The deformation and residual stress simulation of dual laser-beam bilateral synchronous welding for Al-alloy aircraft panel structure

https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1023&amp;context=icpns

The deformation and residual stress simulation of dual laser-beam bilateral synchronous welding for Al-alloy aircraft panel structure

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