Numerical aspects for efficient welding computational mechanics
Апстракт
The effect of the residual stresses and strains is one of the most important parameter in the structure integrity assessment. A finite element model is constructed in order to simulate the multi passes mismatched submerged arc welding SAW which used in the welded tensile test specimen. Sequentially coupled thermal mechanical analysis is done by using ABAQUS software for calculating the residual stresses and distortion due to welding. In this work, three main issues were studied in order to reduce the time consuming during welding simulation which is the major problem in the computational welding mechanics (CWM). The first issue is dimensionality of the problem. Both two- and three-dimensional models are constructed for the same analysis type, shell element for two dimension simulation shows good performance comparing with brick element. The conventional method to calculate residual stress is by using implicit scheme that because of the welding and cooling time is relatively high. In th...is work, the author shows that it could use the explicit scheme with the mass scaling technique, and time consuming during the analysis will be reduced very efficiently. By using this new technique, it will be possible to simulate relatively large three dimensional structures.
Кључне речи:
thermal analysis / mechanical analysis / efficient weldingИзвор:
Thermal Science, 2014, 18, S139-S148Издавач:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
DOI: 10.2298/TSCI130227180A
ISSN: 0354-9836
WoS: 000338690200016
Scopus: 2-s2.0-84907046999
Институција/група
Inovacioni centarTY - JOUR AU - Aburuga, Tarek AU - Sedmak, Aleksandar AU - Radaković, Zoran PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1997 AB - The effect of the residual stresses and strains is one of the most important parameter in the structure integrity assessment. A finite element model is constructed in order to simulate the multi passes mismatched submerged arc welding SAW which used in the welded tensile test specimen. Sequentially coupled thermal mechanical analysis is done by using ABAQUS software for calculating the residual stresses and distortion due to welding. In this work, three main issues were studied in order to reduce the time consuming during welding simulation which is the major problem in the computational welding mechanics (CWM). The first issue is dimensionality of the problem. Both two- and three-dimensional models are constructed for the same analysis type, shell element for two dimension simulation shows good performance comparing with brick element. The conventional method to calculate residual stress is by using implicit scheme that because of the welding and cooling time is relatively high. In this work, the author shows that it could use the explicit scheme with the mass scaling technique, and time consuming during the analysis will be reduced very efficiently. By using this new technique, it will be possible to simulate relatively large three dimensional structures. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Numerical aspects for efficient welding computational mechanics EP - S148 SP - S139 VL - 18 DO - 10.2298/TSCI130227180A ER -
@article{ author = "Aburuga, Tarek and Sedmak, Aleksandar and Radaković, Zoran", year = "2014", abstract = "The effect of the residual stresses and strains is one of the most important parameter in the structure integrity assessment. A finite element model is constructed in order to simulate the multi passes mismatched submerged arc welding SAW which used in the welded tensile test specimen. Sequentially coupled thermal mechanical analysis is done by using ABAQUS software for calculating the residual stresses and distortion due to welding. In this work, three main issues were studied in order to reduce the time consuming during welding simulation which is the major problem in the computational welding mechanics (CWM). The first issue is dimensionality of the problem. Both two- and three-dimensional models are constructed for the same analysis type, shell element for two dimension simulation shows good performance comparing with brick element. The conventional method to calculate residual stress is by using implicit scheme that because of the welding and cooling time is relatively high. In this work, the author shows that it could use the explicit scheme with the mass scaling technique, and time consuming during the analysis will be reduced very efficiently. By using this new technique, it will be possible to simulate relatively large three dimensional structures.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Numerical aspects for efficient welding computational mechanics", pages = "S148-S139", volume = "18", doi = "10.2298/TSCI130227180A" }
Aburuga, T., Sedmak, A.,& Radaković, Z.. (2014). Numerical aspects for efficient welding computational mechanics. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 18, S139-S148. https://doi.org/10.2298/TSCI130227180A
Aburuga T, Sedmak A, Radaković Z. Numerical aspects for efficient welding computational mechanics. in Thermal Science. 2014;18:S139-S148. doi:10.2298/TSCI130227180A .
Aburuga, Tarek, Sedmak, Aleksandar, Radaković, Zoran, "Numerical aspects for efficient welding computational mechanics" in Thermal Science, 18 (2014):S139-S148, https://doi.org/10.2298/TSCI130227180A . .