A new multiscale modeling approach, involving the use of combined precipitation, yield strength, work-hardening, and mechanical models, has been devised that proved useful to optimize the load-bearing capacity of welded crash components made of age-hardening Al-Mg-Si alloys. The main parameters that influence the structural performance are, in addition to geometry and boundary conditions, the following: 1) alloy composition; 2) initial base plate temper condition; 3) applied heat input during welding; and 4) subsequent postweld heat-treatment schedule all being fully accounted for in the numerical simulations.
Optimizing crash resistance of welded aluminum structures
Welding Journal, New York ; 88 , 2 ; 42-45
2009
4 Seiten, 7 Bilder, 1 Tabelle, 14 Quellen
Aufsatz (Zeitschrift)
Englisch
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