the seismic anisotropy is a subject of interest for seismologists and geologists. the information of seismic anisotropy has significant role in geology interpretations (savage, 1999). in this study, we have investigated the upper crust anisotropy in bam area by means of shear wave splitting sg phase. we have selected more than three hundred aftershocks from iiees local temporary seismic network...

This work discusses the derivation and numerical implementation of an elastoplastic model textile membranes at finite strains. The mechanical accounts for anisotropic hyperelastic response [1], reached in saturation region. plastic anisotropy is modeled by implementing yield surface flow rule as a function structural tensor [2]. Furthermore, capability to simulate behavior under non-proportiona...

This review focuses on the mechanical properties of single-phase cementite. The interest are 1) sound velocity, 2) elastic constants, 3) hardness, 4) plastic deformation mechanism, 5) wear, 6) fracture toughness, and 7) crystal orientation anisotropy. effects temperature, magnetic transition, alloying elements hardness were reviewed. Furthermore, experimental values above as well other paramete...

We present a simple but efficient route to prepare a highly anisotropic conductive plastic thin film from the polypropylene/(styrene-ethylene/butadiene-styrene) triblock copolymer/graphene blend via shear-induced self-assembly. Under the shear-flow induction, GE nanosheets dispersed in the polymer matrix can spontaneously assemble into ordered parallel stripes, which endow the materials signifi...

Knowledge on the deformation mechanisms of Mg2SiO4 ringwoodite is important for the understanding of flow and seismic anisotropy in the Earth’s mantle transition zone. We report here the first numerical modelling of dislocation structures in ringwoodite. The dislocation properties are calculated through the Peierls-Nabarro model using the generalized stacking fault (GSF) results as a starting m...

Wellbores drilled in igneous formation with weak interlayers face significant risk of instabilities. This study aims to investigate the underlying mechanisms these instabilities by employing a combination rock mechanics tests and numerical simulation techniques. The mechanical properties rocks are evaluated determine core strength parameters analyze impact drilling fluid immersion on strength. ...

Abstract The plastic anisotropy behavior of ferritic stainless steel (FSS) sheets was analyzed and modeled under associated nonassociated flow rule approaches. Three orthotropic functions, known as quadratic Hill48 nonquadratic (Yld2000-2d BBC2005), were developed employed an hypothesis. For the NAFR based on initial anisotropy, mechanical described by nonexponential model functions Yld2000-2d ...