Two Scale Analysis of Elastic Structures of Particle Reinforced Composite Materials with Finite Element Method

2012 ◽  
Vol 48 (08) ◽  
pp. 34 ◽  
Author(s):  
Xiaodong YANG
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Composite Materials ◽  
Scale Analysis ◽  
Elastic Structures ◽  
Reinforced Composite ◽  
Particle Reinforced Composite ◽  
Element Method

The Analysis of Interfacial Debonding Using Voronoi Cell Finite Element Method

2014 ◽  
Vol 644-650 ◽  
pp. 4922-4926
Author(s):  
Yuan Yuan Liu ◽  
Ran Guo ◽  
Wen Hai Gai
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Voronoi Cell ◽  
Interfacial Debonding ◽  
Simulation Research ◽  
Finite Element Software ◽  
Reinforced Composite ◽  
Interface Delamination ◽  
Particle Reinforced Composite ◽  
Element Method

This paper bases on the principle of the stress hybrid element, using voronoi cell finite element method to analysis the interfacial debonding phenomenon of a particle reinforced composite materials, then it contrasts by the commercial finite element software MARC in the same conditions of numerical simulation. Research results show that: In the interfacial debonding, especially at the crack tip stress, Stress is the biggest. Particles and matrix interface delamination is the important cause of material damage, at the same time, it has a great impact on the service life of components.

An inhomogeneous cell-based smoothed finite element method for the nonlinear transient response of functionally graded magneto-electro-elastic structures with damping factors

2018 ◽  
Vol 30 (3) ◽  
pp. 416-437 ◽  
Author(s):  
Liming Zhou ◽  
Ming Li ◽  
Bingkun Chen ◽  
Feng Li ◽  
Xiaolin Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Element Model ◽  
Micro Electro Mechanical System ◽  
Functionally Graded ◽  
Elastic Structures ◽  
Mapping Procedure ◽  
Gaussian Integration ◽  
Smoothed Finite Element Method ◽  
Element Method

In this article, an inhomogeneous cell-based smoothed finite element method (ICS-FEM) was proposed to overcome the over-stiffness of finite element method in calculating transient responses of functionally graded magneto-electro-elastic structures. The ICS-FEM equations were derived by introducing gradient smoothing technique into the standard finite element model; a close-to-exact system stiffness was also obtained. In addition, ICS-FEM could be carried out with user-defined sub-routines in the business software now available conveniently. In ICS-FEM, the parameters at Gaussian integration point were adopted directly in the creation of shape functions; the computation process is simplified, for the mapping procedure in standard finite element method is not required; this also gives permission to utilize poor quality elements and few mesh distortions during large deformation. Combining with the improved Newmark scheme, several numerical examples were used to prove the accuracy, convergence, and efficiency of ICS-FEM. Results showed that ICS-FEM could provide solutions with higher accuracy and reliability than finite element method in analyzing models with Rayleigh damping. Such method is also applied to complex structures such as typical micro-electro-mechanical system–based functionally graded magneto-electro-elastic energy harvester. Hence, ICS-FEM can be a powerful tool for transient problems of functionally graded magneto-electro-elastic models with damping which is of great value in designing intelligence structures.

The Effect of Plasticity and Crack Blunting on the Stress Distribution in Orthotropic Composite Materials

1973 ◽  
Vol 40 (3) ◽  
pp. 785-790 ◽  
Author(s):  
J. Tirosh
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Composite Materials ◽  
Stress Distribution ◽  
Plastic Zone ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Crack Blunting ◽  
Rectilinear Anisotropy ◽  
Crack Tip Blunting

A detailed study of the plasticity and crack-tip blunting effects on toughening materials with rectilinear anisotropy is presented. The most important results are the prediction of the extent of plastic zone and the nature of stress distribution produced by the blunting effect in the tensile mode. The analysis was confirmed experimentally and numerically (finite-element method) on a unidirectional fiber-reinforced composite.

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