Elasto-Plastic EFGM Analysis of an Edge Crack
نویسنده
چکیده
In this paper, elasto-plastic analysis of an edge crack has been performed using element free Galerkin method. A model problem has been solved in plane stress condition under mode-I loading. A system of nonlinear equations has been obtained by using incremental theory of plasticity, and the equations are solved by assuming piecewise linear approximation. A code has been written in Matlab for elastoplastic analysis of cracked components. The size of plastic zone is calculated around the tip of the crack by EFGM code. KeywordsElasto-plastic, Edge crack, Element free Galerkin method, Plane stress.
منابع مشابه
Effect of Inclusions on the Shape and Size of Crack Tip Plastic Zones by Element Free Galerkin Method
Abstract—The present study investigates the effect of inclusions on the shape and size of crack tip plastic zones in engineering materials subjected to static loads by employing the element free Galerkin method (EFGM). The modeling of the discontinuities produced by cracks and inclusions becomes independent of the grid chosen for analysis. The standard displacement approximation is modified by ...
متن کاملEvaluation of Elasto-Plastic Interfacial Fracture Parameters in Solder-Copper Bimaterial Using Moir6 Interferometry
An experimental investigation dealing with failure characterization of 63/37 soldercopper interfaces is presented. The method of moird interferometry is used for mapping elasto-plastic deformations in bimaterials subjected to predominantly tensile loading. A method for quantifying the fracture parameter--the J-integral--using full-field measurement of crack opening displacements has been develo...
متن کاملA 3D elasto-plastic FEM program developed for reservoir Geomechanics simulations: Introduction and case studies
The development of yielded or failure zone due to an engineering construction is a subject of study in different disciplines. In Petroleum engineering, depletion from and injection of gas into a porous rock can cause development of a yield zone around the reservoir. Studying this phenomenon requires elasto-plastic analysis of geomaterial, in this case the porous rocks. In this study, which is a...
متن کاملA Coupled Meshless-®nite Element Method for Fracture Analysis of Cracks
This paper presents a coupling technique for integrating the element-free Galerkin method (EFGM) with the traditional ®nite element method (FEM) for analyzing linear-elastic cracked structures subject to mode-I and mixed-mode loading conditions. The EFGM was used to model material behavior close to cracks and the FEM in areas away from cracks. In the interface region, the resulting shape functi...
متن کاملElasto-plastic solution for thick-walled spherical vessels with an inner FGM layer
Purely elastic, partially and fully plastic stress states in a thick-walled spherical pressure vessel with an inner functionally graded material (FG) coating subjected to internal and external pressures are developed analytically in this paper. The modulus of elasticity and the uniaxial yield limit of the FG coating layer are considered to vary nonlinearly through the thickness. Using Tresca’s ...
متن کامل