Application of asymptotic analysis to the two-scale modeling of small defects in mechanical structures (CROSBI ID 241682)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Marenić, Eduard ; Brancherie, Delphine ; Bonnet, Marc
engleski
Application of asymptotic analysis to the two-scale modeling of small defects in mechanical structures
This work aims at designing a numerical strategy towards assessing the nocivity of a small defect in terms of its size and position in a structure, at low computational cost, using only a mesh of the defect-free reference structure. The modification of the fields induced by the presence of a small defect is taken into account by using asymptotic corrections of displacements or stresses. This approach helps determining the potential criticality of defects by considering trial micro-defects with varying positions, sizes and mechanical properties, taking advantage of the fact that parametric studies on defect characteristics become feasible at virtually no extra computational cost. The proposed treatment is validated and demonstrated on two numerical examples involving 2D elastic configurations.
asymptotic analysis ; elastic moment tensor ; defect ; inhomogeneity
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Podaci o izdanju
128
2017.
199-209
objavljeno
0020-7683
1879-2146
10.1016/j.ijsolstr.2017.08.029
Povezanost rada
Matematika, Građevinarstvo, Strojarstvo