In numerous metals and alloys, ductile fracture involves void nucleation, growth, and coalescence. In this contribution, void growth has been quantitatively characterized in an extruded 6061-wrought Al-alloy as a function of stress state in notch tensile test specimens. Digital image analysis and Stereology have been used to estimate the volume fraction and three-dimensional number density of v...

The possibility of the appearance of the C4 symmetry in the rotational bands is studied within the particle-rotor model. The role of the triaxiality of the rotor is analized.

(2001) Nonlinear analysis of plastic ball grid array solder joints. Notice: Changes introduced as a result of publishing processes such as copy-editing and formatting may not be reflected in this document. For a definitive version of this work, please refer to the published source: ABSTRACT A nonlinear finite element analysis was carried out to investigate the viscoplastic deformation of solder...

In this paper, a void closure model applicable to the general hot forming process has been proposed. Through representative volume element (RVE) method, influences of shape, orientation, and stress state on tendency were analysed. The was established so that it could consider these cross effects. calculates changing radius orientation during deformation by considering rate change parameters aff...