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Rapid simulation of impacts on composite sandwich panels inducing barely visible damage

Kärger, Luise and Baaran, Jens and Teßmer, Jan (2007) Rapid simulation of impacts on composite sandwich panels inducing barely visible damage. Composite Structures, 79 (4), pp. 527-534. Elsevier Ltd.. DOI: 10.1016/j.compstruct.2006.02.012.

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Abstract

The finite element based design tool, CODAC, has been developed for efficiently simulating the impact behavior of sandwich structures consisting of two composite face sheets and a compliant core. To achieve a rapid and accurate stress analysis, three-layered finite shell elements are used. A number of macromechanical damage models are implemented to model damage onset and damage growth. The transient impact analysis is assessed via an experimental impact test program on honeycomb sandwich panels. Force–time histories and damage sizes are examined. The influence of distinct damage and degradation models on the impact response is analyzed. Results show that the presented time-efficient methodology is capable of accurately modeling core failure behavior and rapidly simulating low-velocity impacts which induce barely visible damage.

Document Type:Article
Title:Rapid simulation of impacts on composite sandwich panels inducing barely visible damage
Authors:
AuthorsInstitution or Email of Authors
Kärger, LuiseUNSPECIFIED
Baaran, JensUNSPECIFIED
Teßmer, JanUNSPECIFIED
Date:2007
Journal or Publication Title:Composite Structures
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:79
DOI:10.1016/j.compstruct.2006.02.012
Page Range:pp. 527-534
Editors:
EditorsEmail
Marshall, I. H.UNSPECIFIED
Publisher:Elsevier Ltd.
Status:Published
Keywords:Impact simulation; Impact damage; Finite element analysis; Sandwich structures; Damage mechanics
HGF - Research field:Aeronautics, Space and Transport (old)
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 > Structural Mechanics
Deposited By: Doris Ries
Deposited On:08 Jan 2008
Last Modified:15 Jan 2010 02:08

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