Simulating the elasto-plastic behavior of multiphase materials by advanced finite element techniques Part I: a rezoning technique and the multiphase element method

Empirical formulation of stress concentration factor around an arbitrary-sized spherical dual-cavity system and its application to aluminum die castings

“…Since G-type specimens represent the actual material used in the manufacturing of engine blocks, the empirical formula can be applied reliably to get better results. Although VOXELCON analysis and other finite element analysis [15][16][17] can be used for G-type specimen, it is extremely time consuming, demands high computation cost and almost impractical to employ in actual die cast products which are large in size. For a comparison, a typical image base finite element analysis volume of 1 cm side cube takes more than a day by VOXELCON while empirical formula takes only few minutes to calculate stress concentration factor.…”

“…The accuracy of the result is also affected by number of terms in truncated infinite series, and there are also difficulties in achieving convergence in many situations. Some researchers have also proposed realistic finite element modeling using multiphase elements for 3-D microstructure [15,16]. Sukumar et al [17] has employed level set techniques in extended finite element method for holes and inclusions.…”

Numerical and Experimental Study of Early Stages of the Failure of AlSi-Cast Alloys

“…The specimens are loaded in tension with a cross-head speed of 0.1 ~m / s (figure 2). Crack initiation and subsequent failure of the microstructure is directly simulated by FEmodelling using the method of multiphase elements (MME) [2] in which the Gaussian points of one element may be assigned to different phases. (The FE-mesh can then be independent of the structure.…”

Numerical simulation of thermo-mechanical fatigue properties for particulate reinforced composites

“…Therefore some special finite element methods were developed for reducing the computing expenses. Multiphase finite element method was developed for modeling deformation and damage in particulate reinforced composites [10,11], in which different phase properties are assigned to individual integration points in the element, while the FE mesh is independent of the phase arrangement of the material. A hybrid finite element approach for the mechanical response of two-dimensional heterogeneous materials with randomly dispersed rigid inclusions of arbitrary size was presented by Zhang and Katsube [12].…”