Development of mathematical and numerical models for the analysis of overlap laser beam welding of dissimilar materials

• Autorzy: Domański Tomasz , Piekarska Wiesława , Saternus Zbigniew , Kubiak Marcin

Identyfikatory

DOI

10.17512/jamcm.2022.2.02

• Języki publikacji: EN

Abstrakty

EN

The welding process of dissimilar materials causes a lot of technological issues related to different properties of materials of joined elements. Thermal conductivity is one of most important factors influencing the deformation of the weld. The change of thermal conductivity in the function of the temperature can produce various strains that cannot be predicted during construction design. Different structures of materials appear during joining of dissimilar materials as well as different characteristic zones of the joint and its mechanical properties. The most important is the proper identification of joint zones and the size of deformation at the production stage of welded construction. This work presents the numerical analysis of physical phenomena in overlap welding of two sheets made of S355 carbon steel and 304 austenitic steel using a laser beam. A three-dimensional discrete model is developed taking into account thermophysical properties changing with temperature. Temperature distribution and the shape of the welding pool is predicted on the basis of performer computer simulations. The influence of thermal load on the formation of stress and strain fields is determined.

Słowa kluczowe

EN

mathematical modelling; numerical modelling; dissimilar materials; laser welding; thermomechanical phenomena

PL

modelowanie matematyczne; modelowanie numeryczne; materiały różnoimienne; spawanie laserowe; zjawiska termomechaniczne

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Journal of Applied Mathematics and Computational Mechanics
• Rocznik: 2022
• Tom: Vol. 21, nr 2
• Strony: 15--26
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Domański Tomasz

• Department of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Czestochowa, Poland

autor

Piekarska Wiesława

• Faculty of Architecture, Civil Engineering and Applied Arts, University of Technology, Katowice, Poland

autor

Saternus Zbigniew

• Department of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Czestochowa, Poland

autor

Kubiak Marcin

• Department of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Czestochowa, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).