elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Combined FEM/Meshfree SPH Method for Impact Damage Prediction of Composite Sandwich Panels

Aktay, Levent and Johnson, Alastair F. and Kröplin, Bernd -H. (2005) Combined FEM/Meshfree SPH Method for Impact Damage Prediction of Composite Sandwich Panels. DM-IST (Departamento de Matematica-Instituto Superior Tecnico). ISBN 972-99289-1-6.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
106kB

Abstract

In this work, impact simulations using both meshfree Smoothed Particle Hydrodynamics (SPH) and combined FEM/SPH Method were carried out for a sandwich composite panel with carbon fibre fabric/epoxy face skins and polyetherimide (PEI) foam core. A numerical model was developed using the dynamic explicit finite element (FE) structure analysis program PAM-CRASH. The carbon fibre/epoxy facings were modelled with standard layered shell elements, whilst SPH particles were positioned for the PEI core. We demonstrate the efficiency and the advantages of pure meshfree SPH and combined FEM/SPH Method by comparing the core deformation modes and impact force pulses measured in the experiments to predict structural impact response.

Document Type:Proceedings
Title:Combined FEM/Meshfree SPH Method for Impact Damage Prediction of Composite Sandwich Panels
Authors:
AuthorsInstitution or Email of Authors
Aktay, LeventUNSPECIFIED
Johnson, Alastair F.UNSPECIFIED
Kröplin, Bernd -H.Institut für Statik und Dynamik der Luft- und Raumfahrtkonstruktionen, Universität Stuttgart
Date:July 2005
Refereed publication:No
Number of Pages:0
Editors:
EditorsEmail
Leitao, V.M.AUNSPECIFIED
Alves, C.J.S.UNSPECIFIED
Duarte, C.A.UNSPECIFIED
Publisher:DM-IST (Departamento de Matematica-Instituto Superior Tecnico)
ISBN:972-99289-1-6
Status:Published
Keywords:Impact damage, composite material, sandwich structure concept, Finite Element Method (FEM), meshfree method, Smoothed Particle Hydrodynamics (SPH)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Robust Rotorcraft
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Levent Aktay
Deposited On:12 Dec 2005
Last Modified:12 Dec 2013 20:08

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.