Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimization of a frame structure subjected to a plastic deformation
An optimization method for a frame structure subjected to a plastic deformation is proposed in this paper. The method is based on the generalized layout optimization method proposed by Bendsoe and Kikuchi in 1988, where the solid-cavity composite material is distributed in the admissible domain and the cavity size is determined so that it becomes large in the area where the strain energy is small. Elasto-plastic analysis based on the homogenization method is carried out to obtain the nonlinear average stress-strain relations of a porous material first. Then the optimization algorithm of a frame structure is derived by taking plastification into account. Finally, in order to demonstrate the effectiveness of the present algorithm, several numerical examples are illustrated.
Optimization of a frame structure subjected to a plastic deformation
An optimization method for a frame structure subjected to a plastic deformation is proposed in this paper. The method is based on the generalized layout optimization method proposed by Bendsoe and Kikuchi in 1988, where the solid-cavity composite material is distributed in the admissible domain and the cavity size is determined so that it becomes large in the area where the strain energy is small. Elasto-plastic analysis based on the homogenization method is carried out to obtain the nonlinear average stress-strain relations of a porous material first. Then the optimization algorithm of a frame structure is derived by taking plastification into account. Finally, in order to demonstrate the effectiveness of the present algorithm, several numerical examples are illustrated.
Optimization of a frame structure subjected to a plastic deformation
Optimierung eines Rahmenwerks, das einer plastischen Verformung unterworfen ist
Yuge, K. (Autor:in) / Kikuchi, N. (Autor:in)
Structural Optimization ; 10 ; 197-208
1995
12 Seiten, 34 Bilder, 8 Quellen
Aufsatz (Zeitschrift)
Englisch
Rahmen , plastisches Verformen , Optimierung , Anordnungsplanung , Auslegung (Dimension) , Finite-Elemente-Methode , Hohlraum , Formänderungsarbeit , Spannungsdehnungsverhalten , Nichtlinearität , Porosität , mathematisches Modell , Algorithmus , Plastizität , Homogenisieren , Porenweite , Integralgleichung , Differenzialgleichung , Ablaufdiagramm , Druckkraft , Balken , Verlagerung , Elastizitätsmodul , frei tragender Träger
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