This paper reviews recent attempts to construct a microstatistical fracture mechanics; that is, a methodology that relates the kinetics of material failure on the microstructural level to continuum mechanics. The approach is to introduce microstructural descriptions of damage into the continuum constitutive...
Analysis of a brittle-ductile transition under dynamic shear loading The competition between brittle and ductile modes of failure is analyzed in a double edge-cracked specimen impacted by a projectile on the cracked side. Fu... A Needleman,V Tvergaard - 《International Journal of Solids & ...
Fracture induced failure has obtained extensive concern in engineering designs because of the potential serious risks for structures and machines being used [1]. The research on crack initiation and propagation in solids has therefore become very important [2]. Particularly, when experiments are difficu...
The evolution of deformation modes leads to the conversion of material failure from an intergranular mode to transgranular cleavage, in which twinning interfaces serve as the preferred cleavage planes. 展开 关键词: BRITTLE SOLIDS DEFORMATION TRANSITIONS SIMULATIONS COMPRESSION ALPHA-AL2O3 CERAMICS WAVES ...
10.1038/NPHYS4237 Instability in dynamic fracture and the failure of the classical theory of cracks Chih-Hung Chen1, Eran Bouchbinder2* and Alain Karma1* Cracks, the major vehicle for material failure1, undergo a micro-branching instability at ∼40% of their sonic limiting velocity in three...
The study of solids at stresses where material rigidity cannot be ignored is important for an understanding of dynamic failure and thus learning about the complete constitutive relation for a solid. A number of solids in this stress range display stress relaxation which is described by a time depe...
A coupled thermomechanical damage approach for dynamic shear failure in brittle solids is proposed in the present contribution. The model is constructed by asymptotic homogenization from microstructures with dynamically evolving microcracks, in mode II, with unilateral contact and friction conditions on ...
The collection presents early findings and case studies on fundamental and applied aspects of Materials Science, including papers on Composite Materials, Dynamic Failure and Fracture, Dynamic Materials Response, Novel Testing Techniques, Low Impedance Materials, Metallic Materials, Response of Brittle ...
The dynamic response and failure of monolithic metallic plates subjected to water-based impulsive loads are investigated experimentally. The analysis focuses on the effects of plate thickness, fluid–structure interaction parameter, and patch size of loading area on deformation and failure modes in clampe...
1. For the borosilicate glass blocks examined, the experimental results show that the equivalent stress at failure decreases with increasing shear stress component. In this study, we attempt at quantifying the shear strength of borosilicate glass and simulating the glass impact damage process with a ...