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A comprehensive explanation of compression strength differences between various CFRP materials: Micro-meso model, predictions, parameter studies

Pansart, Simon and Sinapius, Michael and Gabbert, Ulrich (2009) A comprehensive explanation of compression strength differences between various CFRP materials: Micro-meso model, predictions, parameter studies. Composites Part A Applied Science and Manufacturing, 40 (4), pp. 376-387. ISSN 1359-835X.

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Abstract

The present work proposes a model to predict the compression strength of CFRP as a function of various material characteristics: fiber properties and volume content, non-linear matrix properties, interface properties, residual strains, fiber misalignment, ply waviness, and interlaminar properties. For this, a three-step FE-based approach is developed considering (i) fiber microbuckling, (ii) wavy ply mesobuckling, and (iii) the mutual influence of these two. This approach is then applied to investigate the relative contribution of the mentioned material characteristics on compression strength deficits of NCF (Noncrimp Fabric) CFRP with respect to prepreg, in order to identify ways to improve NCF performance.

Document Type:Article
Title:A comprehensive explanation of compression strength differences between various CFRP materials: Micro-meso model, predictions, parameter studies
Authors:
AuthorsInstitution or Email of Authors
Pansart, SimonUNSPECIFIED
Sinapius, Michaelmichael.sinapius@dlr.de
Gabbert, UlrichUNSPECIFIED
Date:2009
Journal or Publication Title:Composites Part A Applied Science and Manufacturing
Refereed publication:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:40
Page Range:pp. 376-387
ISSN:1359-835X
Status:Published
Keywords:A. Fabrics/textiles B. Mechanical properties C. Finite Element Analysis (FEA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems
Deposited By: Prof.Dr. Michael Sinapius
Deposited On:10 Jun 2009 10:00
Last Modified:12 Dec 2013 20:38

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