In this paper, we derive the second-order crack opening displacement tensor for an arbitrarily oriented elliptical in elliptically orthotropic (EO) matrix. This result is obtained explicit closed form. The approach based on Saint-Venant’s idea of linear transformation between boundary value problems and isotropic bodies. solution utilizes classical representation ellipsoid where smallest aspect...

In 2004, a team comprised of researchers and service providers launched the Safer Crack Use, Outreach, Research and Education (SCORE) project in the Downtown Eastside of Vancouver, British Columbia, Canada. The project was aimed at developing a better understanding of the harms associated with crack cocaine smoking and determining the feasibility of introducing specific harm reduction strategie...

Abstract The holes and defects in rock materials have a great impact on the mechanical properties failure mechanism of rock, cracks often appear form flat ellipses natural mass, current research is still insufficient. For this purpose, based Particle Flow Code (PFC) discrete element particle flow program, numerical prefabricated fractured samples with ratios long short axes elliptical fractures...