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

Numerical simulation of fiber-matrix debonding in single fiber pull-out tests

Hoppe, Lukas (2020) Numerical simulation of fiber-matrix debonding in single fiber pull-out tests. GAMM Archive for Students (GAMMAS), 2 (1), pp. 21-35. Chemnitz University of Technology. doi: 10.14464/gammas.v2i1.437. ISSN 2626-9724.

[img] PDF - Published version
3MB

Official URL: https://www.bibliothek.tu-chemnitz.de/ojs/index.php/GAMMAS/article/view/437

Abstract

The present work deals with the numerical crack simulation of fiber-matrix debonding in single fiber pull-out tests. For this purpose, two models are used: a finite element model (FE model) with the cohesive zone approach and a peridynamic model. For calibration a reference experiment is applied. In addition, analytical equations are used for reference values. The influence of the model parameters and the material parameters of the cohesive zone model on the force-displacement curve is investigated. Besides the free fiber length, the critical interface strength, the critical energy release rate as well as the initial interface stiffness have a great influence on the force-displacement curve of the pull-out test. From the crack simulation it can be seen that Mode I has an influence on the crack initiation, but further crack growth after initiation is dominated by Mode II. The FE model can be calibrated in a way that the crack initiation point and the maximum force correspond to the reference experiment. The peridynamic model depicts a comparable crack formation process.

Item URL in elib:https://elib.dlr.de/139517/
Document Type:Article
Additional Information:Veröffentlichung berteut durch Caroline Lüders und Christian Willberg
Title:Numerical simulation of fiber-matrix debonding in single fiber pull-out tests
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hoppe, LukasDLR FA-STM, Universität PaderbornUNSPECIFIED
Date:12 December 2020
Journal or Publication Title:GAMM Archive for Students (GAMMAS)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:2
DOI :10.14464/gammas.v2i1.437
Page Range:pp. 21-35
Publisher:Chemnitz University of Technology
ISSN:2626-9724
Status:Published
Keywords:interface modeling, single fiber pull-out, test, fiber reinforced plastics, peridynamic, finite element method, cohesive zone model, glass fiber, epoxy
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Rail Transport
DLR - Research area:Transport
DLR - Program:V SC Schienenverkehr
DLR - Research theme (Project):V - NGT BIT
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Wolff, Caroline
Deposited On:30 Dec 2020 11:34
Last Modified:30 Dec 2020 11:34

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.