Effect of the mechanical properties and mode loading on the mechanical behaviour of weldment: a numerical analysis

AUTOR(ES)

Miloud, Meddah Hadj, Bahri, Ould chikh, Ali, Benhamena, Mohamed, Benguediab, Benattou, Bouchouicha

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

07/05/2013

RESUMO

Welding is used to realize permanent assembly in mechanical structures to assure the continuity of the parts to be assembled contrary to the other assembly techniques which have physical or chemical discontinuities. Generally, crack evolution depends on several intrinsic and extrinsic parameters of material. The aim of this work is to analyse the severity of crack defects on the mechanical behaviour of Welded joints. The cracks are considered located in the weld metal. The J-integral method was used to analyse the fracture behaviour of these structures by the two-dimensional finite element method using Cast3M code. The effect of the mechanical properties, the mismatching and the crack size on the J-integral values was highlighted. A good correlation between the FEM simulations and the literature analysis results was observed. We note that the loading mode affects directly the J-integral value and consequently on the mechanical behaviour of the weldment.

Documentos Relacionados

• Micro-mechanical numerical analyses on the effect of stress state on ductile damage under dynamic loading conditions
• Effect of the loading of organomodified clays on the thermal and mechanical properties of a model dental resin
• Experimental and numerical investigation on the shock characteristics of U-notched ZL205A specimens under dynamic mixed-mode loading
• Effect of blast loading on CFRP-Retrofitted RC columns - a numerical study
• Mechanical properties and thermal behaviour of LLDPE/MWNTs nanocomposites