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

Nonlinear finite element modelling of degradation and failure in folded core composite sandwich structures

Kilchert, Sebastian (2013) Nonlinear finite element modelling of degradation and failure in folded core composite sandwich structures. DLR-Forschungsbericht. 2013-22, 200 S. DLR.

Full text not available from this repository.

Abstract

The presented research investigates the numerical modelling of sandwich structures with aramid paper foldcore and fibre composite face sheets in quasi-static and dynamic load cases. For that purpose, existing approaches reproducing cellular sandwich structures on the basis of shell-based meso-models are adapted to aramid paper foldcores and further developed. In order to consider the aramid papers inhomogeneous nature in the thickness direction a new modelling approach with layered shell elements is proposed. A methodology to derive the material properties of the individual layers from global paper properties measured experimentally is presented. In combination with continuum damage mechanics and a cohesive interface for the modelling of the carbon composite surface skin the proposed modelling approach is used to reproduce drop tower and gas gun impact test. By comparison of the experimental and numerical results the strengths and weaknesses of the presented modelling approach are discussed and evaluated.

Item URL in elib:https://elib.dlr.de/87886/
Document Type:Monograph (DLR-Forschungsbericht)
Title:Nonlinear finite element modelling of degradation and failure in folded core composite sandwich structures
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kilchert, Sebastiansebastian.kilchert (at) dlr.deUNSPECIFIED
Date:2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:200
Publisher:DLR
ISSN:1434-8454
Status:Published
Keywords:sandwich, impact, foldcore, aramid paper, drop tower, gas gun
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Structural Integrity
Deposited By: Toso, Dr.-Ing. Nathalie
Deposited On:30 Jan 2014 11:29
Last Modified:23 Jan 2018 09:34

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.