Multi-scale analysis for the structure of composite materials with small periodic configuration under condition of coupled thermoelasticity

2003 ◽  
Vol 19 (6) ◽  
pp. 585-592 ◽  
Author(s):  
Feng Yongping ◽  
Cui Junzhi
Keyword(s):  
Composite Materials ◽  
Scale Analysis ◽  
Coupled Thermoelasticity ◽  
Multi Scale ◽  
Periodic Configuration ◽  
Small Periodic ◽  
Multi Scale Analysis

Multi-Scale and Finite Element Analysis of the Mixed Boundary Value Problem in a Perforated Domain under Coupled Thermoelasticity

2005 ◽  
Vol 9 ◽  
pp. 153-162
Author(s):  
Yongping Feng ◽  
Junzhi Cui
Keyword(s):  
Finite Element ◽  
Mixed Boundary ◽  
Asymptotic Expression ◽  
Perforated Domain ◽  
Scale Analysis ◽  
Element Analysis ◽  
Coupled Thermoelasticity ◽  
Multi Scale ◽  
Error Estimations ◽  
Small Periodic

The two-scale asymptotic expression and error estimations based on two-scale analysis (TSA) are presented for the solution of the increment of temperature and the displacement of a composite structure with small periodic configurations under coupled thermoelasticity condition in a perforated domain. The two-scale coupled relation between the increment of temperature and displacement is established.The multi-scale finite element algorithms corresponding to TSA are described and numerical results are presented.

A Multi-Scale Analysis for an Evaluation of the Mechanical Properties of Composite Materials

2007 ◽  
Vol 334-335 ◽  
pp. 585-588
Author(s):  
Makoto Imura ◽  
Tetsusei Kurashiki ◽  
Hiroaki Nakai ◽  
Masaru Zako
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Composite Materials ◽  
Material Properties ◽  
Woven Fabric ◽  
Scale Analysis ◽  
Multi Scale ◽  
Woven Fabric Composites ◽  
Fabric Composites ◽  
Multi Scale Analysis

Fiber reinforced composite materials have been applied widely to many structures, because they have some advantages like easy handling, high specific strength, etc. The numerical method like finite element method has been applied to design and to evaluate the material properties and behavior as the development of Computer Aided Engineering. It is very difficult to calculate with accuracy not only in structural scale but also in detail material scale (for example, the order of fiber diameter) by the traditional FEM, becausecompositematerials like woven fabric composites have the geometrical complexityand the large difference between above mentioned scales. The development of multi-scale analysis method is one of the major topics in computational mechanics. Mesh superpositionis one of multi-scale analysis methods and is an effective method to solve the problems which have the large difference between the structure scale and the reinforcement scale. We have expanded the finite element mesh superposition method with 3 scales and have defined as M3 (Macro-Meso-Micro) method. In this paper, we have proposed a new approach method combined with M3 method and homogenized method to obtain the mechanical properties and to simulate the behavior of woven fabric composites. In addition, the elastic-plastic mechanics and the damage mechanics have been introduced into M3 method to investigate the effects of matrix-crack on the structural and material properties. From the numerical results, it is revealed that it is very useful for the evaluation of mechanical properties of composite materials.

Sign in / Sign up

Export Citation Format

Share Document