With the thermo-hydro-mechanical coupling process considered, this paper derives a set of analytical porothermoelastic solutions to field variables including stress, displacement, and pore pressure fields evaluate wellbore stability around vertical borehole drilled through an isotropic porous rock. The thermal effect on low-permeability saturated rock also introduces osmosis term. problem is de...

Pierre Carrier,1 João F. Justo,2 and Renata M. Wentzcovitch1 1Minnesota Supercomputing Institute, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA 2Escola Politécnica, Universidade de São Paulo, CP 61548, CEP 05424-970 São Paulo, SP, Brazil and Chemical Engineering and Materials Science Department, University of Minnesota, Minn...

x-100 steel is one of the most recently developed materials for production of gas transportation pipelines. this material is severely anisotropic. smooth and notched round bars with different notch radius and flat notched specimens with different notch radius and notch depth in tension are tested to characterize the failure of this material under quasi-static loading condition. triaxiality fact...

Compared with other natural fibers, coir fiber has good strength characteristics and long-term anti-biodegradation ability. At present, most studies on randomly distributed fiber-reinforced soil have focused cohesionless or granular soil. In this paper, the influence of deviatoric stress shear index red clay different content was assessed by a consolidated undrained (CU) triaxial compression te...

During the welding, many phenomena occur. The materials deform under action of residual stresses. This tendency is due to high gradients temperature during process. These deformations are really difficult for professionals operating in area. In goal predict these variations, one has established behaviour laws which will be applied evaluate stresses and strains. research focused on study Thermal...

spherical Bessel function complex ware number in the region a < r < b mass local unit normal vector hydrostatic pressure in the region a < r < b pressure in the region a < r < b real constant radial coordinate in spherical coordinates position vector time physical component of the radial velocity in the region a < r < b physical component of the tangential velocity in the region a < r < b veloc...

Abstract In this study, the stress–strain curves of sandstone soaked in 5% NaCl and K 2 SO 4 solutions under different loading unloading paths were obtained by carrying out confining pressure tests on specimens. Thereafter, strength, deformation, failure characteristics specimens analysed. First, capacity was found to be greater than those , amount increased order increasing axial &lt; constant...

This paper proposes a method of evaluating the fatigue life of a refrigeration compressor reed valve, given the applied stresses as might be computed by a valve simulation. Mean and alternating values of equivalent stresses (e.g. Von Mises) are plotted in the Haigh diagram. Various choices of models are considered for the safe area of the diagram. This method takes into account surface finish, ...