Within the framework of hypothesis plane deformation, we consider a piecewise homogeneous isotropic elastic body with interface shear cracks near angular point interface. The exact solution corresponding problem theory elasticity for wedge-shaped is constructed by Wiener–Hopf method. On basis solution, analyze behavior stresses in vicinity point.

This paper investigates the efficiency of Ultrasonic Pulse Velocity (UPV) method in detecting cracks and flaws inside the concrete. A series of concrete beams and slab specimens were cast and damaged to simulate the different mechanisms possible in a reinforced concrete deck due to mechanical loading. Two types of simulated cracks, namely, cracks perpendicular and cracks parallel to axis of bea...

This paper demonstrates the viability of in-situ transmission electron microscopy for studying the deformation mechanisms of polymer nano-composites. In-situ straining studies are performed on carbon multiwalled nanotube (MWNT)-polystyrene composite films. The experiments show that load transfer across the nanotube-polystyrene interface is operative well into the plastic deformation regime of t...

Although concrete is one of the most widely used construction materials, it is characterized by substantially low tensile strength in comparison to its compression strength, and the occurrence of cracks is unavoidable. In addition, cracks progress due to environmental conditions including damage by freezing, neutralization, and salt, etc. Moreover, detrimental damage can occur in concrete struc...

We have developed a Java-based boundary element program front end, the Electronic Handbook of Fracture (e-Handbook), for fracture analysis of multiple curvilinear cracks in the two-dimensional general anisotropic solids. The e-Handbook provides a graphic user interface for the preparation of the input files, runs a Fortran program for the mixed-mode fracture analysis and displays the stress int...