- Tytuł:
- 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 - Powiązania:
- https://bibliotekanauki.pl/articles/2175526.pdf
- Data publikacji:
- 2022
- Wydawca:
- Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
- Tematy:
-
mathematical modelling
numerical modelling
dissimilar materials
laser welding
thermomechanical phenomena
modelowanie matematyczne
modelowanie numeryczne
materiały różnoimienne
spawanie laserowe
zjawiska termomechaniczne - Opis:
- 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.
- Źródło:
-
Journal of Applied Mathematics and Computational Mechanics; 2022, 21, 2; 15--26
2299-9965 - Pojawia się w:
- Journal of Applied Mathematics and Computational Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł