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Meshing recommendations for the P-approach application in ABAQUS – A tool for pheno-numerical spring-in prediction

Kappel, Erik (2018) Meshing recommendations for the P-approach application in ABAQUS – A tool for pheno-numerical spring-in prediction. Composite Structures, pp. 1-10. Elsevier. DOI: 10.1016/j.compstruct.2018.06.115 ISSN 0263-8223

Full text not available from this repository.

Official URL: http://www.elsevier.com/locate/compstruct

Abstract

A numerical study is performed which analyzes the effect of mesh parameter settings on the prediction accuracy of the P-approach, a simulation concept which has been proposed earlier by the author for predicting processinduced distortion of composite structures. A parameterized solid-element finite element (FE) ABAQUS model of a composite L-profile is used as the reference geometry, while numerically predicted distortions are compared with nominal values. This paper shows that significant, unacceptable mesh-related deviations occur for some mesh-parameter configurations. The paper also shows that the main drivers of these deviations are related to the effective geometry of the finite elements at the L-profile’s bend. Based on this finding, the P-approach has been extended with a novel model formulation, which helps to minimize mesh-related deviations, especially for coarse meshes. The validity of the proposed model is verified by a re-execution of the full study, which shows a remarkable reduction of mesh-related deviations. The paper provides general mesh-parameter guidelines for the P-approach application in ABAQUS as well as measures to apply coarser meshes without losing prediction accuracy.

Item URL in elib:https://elib.dlr.de/125053/
Document Type:Article
Title:Meshing recommendations for the P-approach application in ABAQUS – A tool for pheno-numerical spring-in prediction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kappel, Erikerik.kappel (at) dlr.dehttps://orcid.org/0000-0002-8760-8451
Date:27 June 2018
Journal or Publication Title:Composite Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.compstruct.2018.06.115
Page Range:pp. 1-10
Editors:
EditorsEmail
UNSPECIFIEDElsevier
Publisher:Elsevier
ISSN:0263-8223
Status:Published
Keywords:Numerical prediction Spring-in Spring-back Process-induced distortions (PID) P-approach Modelling guidelines
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation, L - Structures and Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Kappel, Dr.-Ing. Erik
Deposited On:14 Dec 2018 08:01
Last Modified:14 Dec 2018 08:01

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