Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
Autori: Tabacu, St., Hadar, A., Marinescu, D., Ivanescu, M., Balasoiu, V
Editorial: Mat. Plast., 46 (2), p.192-197, 2009.
For the modeling and usual analysis of mechanical structures it is considered that the whole structure and its
components accomplish one of the fundamental conditions of strength of materials – the condition of
continuity and homogeneity. This paper presents some modeling techniques useful for the optimization of
the numerical models in order to improve the structural response for impact applications. As some parts
have to be damaged a material model capable of material failure must be used. The differences between
the results obtained using a model without failure and a model with failure compared to the experiments
were discussed. The second procedure is regarding the random distribution of the thickness properties of the
elements for a selected area within the user specified tolerance. Procedures implemented in custom written
code and the algorithms presented for the random distribution were presented.
Cuvinte cheie: material homogeneity, material model, random thickness, numerical simulation