Exploiting the benefits of multi-scale analysis in reliability analysis for composite structures

For high temperature applications of laminated composite structures, viscoelastic behavior of laminated composite structures is investigated by multi-scale analysis based on a homogenization theory. Effective viscoelastic properties of the laminas are evaluated by a boundary integral method at a micro-scale level, and viscoelastic analysis for laminated composite structures is performed by a finite element method at a macro-scale level using the effective viscoelastic properties of lamina obtained by the micro-scale analysis. In the multi-scale analysis, the Laplace transformation is adopted and the correspondence principle between elastic and viscoelastic solutions in the Laplace domain is applied. The inverse Laplace transform is formulated by the Duhamel integral, and is calculated numerically. As a numerical example, a laminated composite plate with a hole is treated and the viscoelastic behavior of the laminated composite structure is elucidated.

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Multi-scale analysis and optimisation of three-dimensional woven composite structures combining response surface method and genetic algorithms

CEAS Aeronautical Journal ◽

10.1007/s13272-016-0227-y ◽

2016 ◽

Vol 8 (1) ◽

pp. 129-141 ◽

Cited By ~ 5

Author(s):

Xinwei Fu ◽

Sergio Ricci ◽

Chiara Bisagni

Keyword(s):

Genetic Algorithms ◽

Response Surface ◽

Response Surface Method ◽

Composite Structures ◽

Three Dimensional ◽

Scale Analysis ◽

Woven Composite ◽

Multi Scale ◽

Surface Method ◽

Multi Scale Analysis

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Multi-Scale Analysis of Joints in Hybrid Metal/Composite Structures in ESI Virtual Performance Solution (VPS)

American Society for Composites 2018 ◽

10.12783/asc33/25982 ◽

2018 ◽

Author(s):

ALEXANDRE DUMON ◽

SEBASTIAN MUELLER ◽

PATRICK DE LUCA ◽

ALAIN TRAMECON

Keyword(s):

Composite Structures ◽

Metal Composite ◽

Scale Analysis ◽

Multi Scale ◽

Multi Scale Analysis

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Selected Aspects of Current Challenges in Composite Product Development for Automotive and Aerospace Industry

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.828.51 ◽

2016 ◽

Vol 828 ◽

pp. 51-63

Author(s):

Steffen Czichon ◽

Jessica Köhnke ◽

Andreas Preisler ◽

Henrik Herranen

Keyword(s):

Product Development ◽

Composite Structures ◽

Aerospace Industry ◽

Optimization Approach ◽

Scale Analysis ◽

Multi Scale ◽

Composite Product ◽

Analysis Determination ◽

Multi Scale Analysis

This article provides an overview over some current challenges in industrial composite product development with a main focus on numerical analysis. Three main subjects are covered. Firstly, sizing of composite joining techniques is discussed with an emphasis on the joining of thin ply laminates. Secondly, multi scale analysis, determination of nesting factors and optimization of braided composite structures is discussed. Finally, a shape optimization approach for embedded SHM sensors, aiming at improving the mechanical properties of monitored laminates, is presented.

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