Advanced Numerical Simulations of Inter- and Intralaminar Failures in Composite

SCHEME: INTER

CALL: 2010

DOMAIN: MS - Materials, Physics and Engineering

FIRST NAME: Ahmed

LAST NAME: Makradi

INDUSTRY PARTNERSHIP / PPP: No

INDUSTRY / PPP PARTNER:

HOST INSTITUTION: LIST

KEYWORDS:

START: 2010-10-01

END: 2013-09-30

WEBSITE: https://www.list.lu/

Submitted Abstract

The strategic objective of SimuComp is to help design and stress engineers assess the structural integrity and the damage tolerance of lightweight composite structures through provision of new accurate and predictive multi-scale failure models combined with original and computationally An ERA-NET+ financed by FP7 efficient novel numerical methods.The submission of SimuComp is thus motivated by both industry needs (manufacturers: life prediction models; software vendors: efficient and predictive numerical solutions for damage and failure) and scientific advances beyond the current state-of-the-art as tackled by the project. The structures thus targeted will be based on multi-layered nidirectional (UD) composites as a demonstration of theaccuracy of the new methods.To this end, SimuComp essentially introduces four innovations:- Modeling of the diffuse character of intralaminar damage (matrix cracking, fiber breakage, fiber-matrix debonding) using Discontinuous Galerkin/Extrinsic Cohesive Elements Method (DG/ECE) in 3D Representative Volume Elements (RVE); – Development, calibration and validation of a new Mean Field Homogenization (MFH) scheme including damage against experiments on coupons and results obtained by DG/ECE on RVE;- Modeling the transition from diffuse damage predicted by MFH at micro level to macroscopic strong discontinuities using eXtended Finite Element Method (XFEM);- Assessing rigorously the aforementioned combined models by state-of-the-art microstructural characterization tests (such as X-Ray tomography).Such efforts will provide the industries with an easy-to-use set of numerical tools, able to predict multiple mode failure, at a level not yet achieved by current commercial FE software. Such drasticinnovation will ultimately participate in designing lighter and stronger composites for the transportation and construction industry (especially for the aeronautical industry).

This site uses cookies. By continuing to use this site, you agree to the use of cookies for analytics purposes. Find out more in our Privacy Statement