Analysis of moisture diffusion induced stress in carbon/epoxy 3D textile composite materials with voids by µ-CT based Finite Element Models

2019 ◽  
Vol 212 ◽  
pp. 561-570 ◽  
Author(s):  
Y. Sinchuk ◽  
Y. Pannier ◽  
R. Antoranz-Gonzalez ◽  
M. Gigliotti
Keyword(s):  
Finite Element ◽  
Composite Materials ◽  
Moisture Diffusion ◽  
Finite Element Models ◽  
Textile Composite ◽  
Induced Stress ◽  
Materials With Voids ◽  
Diffusion Induced Stress

Computational Analysis of the Effects of Microstructures on Damage and Fracture in Heterogeneous Materials

2006 ◽  
Vol 306-308 ◽  
pp. 489-494 ◽  
Author(s):  
Leon Mishnaevsky
Keyword(s):  
Finite Element ◽  
Composite Materials ◽  
Spherical Particles ◽  
Finite Element Models ◽  
Reinforced Composites ◽  
Damage Growth ◽  
New Methods ◽  
Damage And Fracture ◽  
Numerical Testing ◽  
Methods Of Reconstruction

3D FE (finite element) simulations of the deformation and damage evolution of particle reinforced composites are carried out for different microstructures of the composites. Several new methods and programs for the automatic reconstruction of 3D microstructures of composites on the basis of the geometrical description of microstructures as well as on the basis of the voxel array data have been developed and tested. Different methods of reconstruction and generation of finite element models of 3D microstructures of composite materials (geometry-based and voxel array based) are discussed and compared. It was shown that FE analyses of the elasto-plastic deformation and damage of composite materials using the microstructural models of materials generated with these methods yield very close results. Numerical testing of composites with random, regular, clustered and gradient arrangements of spherical particles is carried out. The fraction of failed particles and the tensile stress-strain curves were determined numerically for each of the microstructures. It was found that the rate of damage growth as well as the critical applied strain, at which the damage growth in particles begins, depend on the particle arrangement, and increase in the following order: gradient < random < regular < clustered microstructure.

Internal Variable and Cellular Automata-Finite Element Models of Heat Treatment

2010 ◽  
Vol 8 (3) ◽  
pp. 267-285 ◽  
Author(s):  
Piotr Maciol ◽  
Jerzy Gawad ◽  
Roman Kuziak ◽  
Maciej Pietrzyk
Keyword(s):  
Heat Treatment ◽  
Finite Element ◽  
Cellular Automata ◽  
Internal Variable ◽  
Finite Element Models

A Finite Element Analysis of the General Rolling Contact Problem for a Viscoelastic Rubber Cylinder

1988 ◽  
Vol 16 (1) ◽  
pp. 18-43 ◽  
Author(s):  
J. T. Oden ◽  
T. L. Lin ◽  
J. M. Bass
Keyword(s):  
Finite Element ◽  
Variational Principles ◽  
Standing Waves ◽  
Rolling Contact ◽  
Finite Element Models ◽  
Viscoelastic Cylinder ◽  
Element Analysis ◽  
Elastic Rubber ◽  
Frictional Effects ◽  
Rough Foundation

Abstract Mathematical models of finite deformation of a rolling viscoelastic cylinder in contact with a rough foundation are developed in preparation for a general model for rolling tires. Variational principles and finite element models are derived. Numerical results are obtained for a variety of cases, including that of a pure elastic rubber cylinder, a viscoelastic cylinder, the development of standing waves, and frictional effects.

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