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

Mechanical behavior of LSI based C/C-SiC composites subjected to flexural loadings

Li, Yang and Peng, Xiao and Shi, Yuan and Almeida, Renato S.M. and Zhou, Wei and Li, Zhuan and Luo, Heng and Reichert, Florian and Langhof, Nico and Krenkel, W. (2017) Mechanical behavior of LSI based C/C-SiC composites subjected to flexural loadings. Composites Part A Applied Science and Manufacturing (95), pp. 315-324. Elsevier. DOI: 10.1016/j.compositesa.2017.01.024 ISSN 1359-835X

Full text not available from this repository.

Abstract

In general, flexural loads result in more complicated and uneven stress distributions in specimens, compared to axial loading. This study reports the influence of flexural fatigue loads including different stress levels and cycles on the mechanical behavior of a 3D C/C-SiC composite. The cyclic tensile loads in the lower part of the specimens result in strength enhancement after short fatigue duration with the expense of decreased flexural modulus due to the fatigue damage such as cracking and interfacial degradation. Whereas the upper part of the post-fatigue specimens, which is almost free of fatigue damage under compressive stress, can still properly deflect the cracks and result in quasi-plastic failures like virgin specimens. Most notably, specimens will suffer strength decline rapidly, after 50,000 cycles with maximum stress of 95 MPa for instance, because of considerable stress concentrations and wear of fibers at 90° fiber bundles in the lower part.

Item URL in elib:https://elib.dlr.de/110953/
Document Type:Article
Title:Mechanical behavior of LSI based C/C-SiC composites subjected to flexural loadings
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Li, YangState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR ChinaUNSPECIFIED
Peng, XiaoState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR ChinaUNSPECIFIED
Shi, Yuanyuan.shi (at) dlr.deUNSPECIFIED
Almeida, Renato S.M.Advanced Ceramics, University of Bremen, Bremen 28359, GermanyUNSPECIFIED
Zhou, WeiState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR ChinaUNSPECIFIED
Li, ZhuanState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR ChinaUNSPECIFIED
Luo, HengState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR ChinaUNSPECIFIED
Reichert, FlorianCeramic Materials Engineering, University of Bayreuth, Bayreuth 95447, GermanyUNSPECIFIED
Langhof, NicoCeramic Materials Engineering, University of Bayreuth, Bayreuth 95447, GermanyUNSPECIFIED
Krenkel, W.Ceramic Materials Engineering, University of Bayreuth, Bayreuth 95447, GermanyUNSPECIFIED
Date:February 2017
Journal or Publication Title:Composites Part A Applied Science and Manufacturing
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.compositesa.2017.01.024
Page Range:pp. 315-324
Publisher:Elsevier
ISSN:1359-835X
Status:Published
Keywords:C/C-SiC; Flexural fatigue; Interfacial degradation; 3D reinforcement
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 - Structures and Materials
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Shi, Yuan
Deposited On:21 Sep 2017 10:34
Last Modified:06 Sep 2019 15:24

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.