In this study a Modified Compressible Smoothed Particle Hydrodynamics (MCSPH) method is introduced which is applicable in problems involve shock wave structures and elastic-plastic deformations of solids. As a matter of fact, algorithm of the method is based on an approach which descritizes the momentum equation into three parts and solves each part separately and calculates their effects on th...

Most earlier thixotropic elasto-visco-plastic models follow the quasi-static pre-yielding linear elastic assumption of Oldroyd's 1946 model. To develop a new model, present work considers more realistic non-linear visco-elastic and plastic deformation. Our model is valid for reversible (finite time scale) irreversible (infinite materials. Despite being simple algebraic equation, our appropriate...

The hydrodynamics of the capillary flow a viscous-plastic liquid in cylindrical rectilinear pores is considered, as result which structural velocity distribution over pore cross section obtained. Analytical solutions are proposed for equations hydraulic diffusion and nonlinear filtration non-Newtonian fluid porous medium. It noted that when flows medium, take form due to effective viscosity, sh...

fluid properties with constant improvement in efficiency have been noticeable as important criteria in drilling operation. the main drilling fluid properties highly depend on utilization of new polymers with high efficiency in drilling fluid composition. in this paper, the performance of a new polymer, called partially hydrolyzed polyacrylamide polymer (phpa), is studied which has recently ente...

Female ticks of the family Ixodidae increase their mass up to 100-fold during the 7-10 day feeding period. We determined the material properties of the alloscutal cuticle of female Amblyomma hebraeum from the time of moulting through to full engorgement. The material properties of the cuticle were evaluated by a Kelvin-Voigt analysis of compliance determined from the stretch of loops of cuticle...

In this short review I summarize some progress achieved in my research group regarding the glass transition and the mechanical properties of the resulting amorphous solids. Our main concerns were on the one hand to understand the extreme slowing down over a narrow range of temperatures which results in a viscosity so high that the materials behave as solids under small mechanical strains. On th...

ISSN 2277-5056 | © 2012 Bonfring Abstract--The workability of fresh concrete should be characterized by its rheological properties based on material science approach to overcome the inadequacies of traditional empirical tests like slump test. Generally the rheological properties of fresh concrete are described by Bingham parameters in terms of two physical quantities, namely yield stress and pl...

With the development of plastic surgery techniques, computer aided approach has become a significant method in medical plastic surgery. In order to solve effects on surgical results made by the surface of a wound in craniofacial cosmetic surgery, accurate preoperative preparation is usually required for the surgery. This paper summarizes the application of computer aided technology in craniofac...

Incorporating jatropha biodiesel into discarded plastic oil and diesel on engines analysis of six fuel samples, three types two waste combinations. Following characterisation, a one-cylinder, DI engine underwent comprehensive performance emissions testing, involving spectroscopy. Addition led to reduced viscosity density the plastic-diesel blend, 20% decrease in flash point, 10% reductions BSEC...