Personality in Science
Nanotechnologies
R&D Projects
News Of Science
Engineering
International Research & Education
Science & Technology Articles
MRC.ORG.UA

MRC ENGINEERING AND MANUFACTURING
ABOUT US PRODUCTS DESIGN PRODUCTION GALLERY VIDEO ARTICLES PARTNERS VACANCIES SITEMAP

Follow us:



MRC SCIENCE AND TECHNOLOGY
R&D PROJECTS PERSONALITY IN SCIENCE International research and education Methods of testing and research Standardization and Certification NANOTECHNOLOGY NEW ENERGY SCIENCE AND TECHNOLOGY ARTICLES


JOURNAL "DOM"
NEWS OF SCIENCE NEWS OF ENGINEERING


LINKS
Materials Research Centre Ltd. DREXEL UNIVERSITY DNI Carbon materials LINKS Yandex Search

Crack arrest in Si 3 N 4 -based layered composites with residual stress

M. Lugovy a , V. Slyunyayev a , V. Subbotin a , N. Orlovskaya a , G. Gogotsi b

a Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovsky Str., Kiev 03142, Ukraine
b Institute for Problems of Strength, National Academy of Sciences of Ukraine, 2 Timiryazevskaya str., Kiev 01014, Ukraine

Received 28 May 2003; received in revised form 17 February 2004; accepted 19 February 2004
Available online 12 April 2004



COMPOSITES

SCIENCE AND

TECHNOLOGY





Abstract

Effect of macroscopic residual stresses on fracture resistance and crack arrest in non-symmetric Si 3 N 4 /Si 3 N 4 x TiN ( x  = 20, 30 wt%) layered specimens was investigated in this study. One of the aims of the work was also an examination of compliance technique to study R -curve effect as applied to layered specimens. A special attention was paid to the development of an analytical method to calculate fracture resistance – crack length dependence in layered structures having different elastic moduli of layers. The validity of the method and its application were examined by calculating stress intensity coefficients for edge-cracked layered specimens and comparison of the results with mechanical characteristics obtained from bending test.
© 2004 Elsevier Ltd. All rights reserved.
Keywords: A. Layered structures; B. Fracture toughness; Modelling; C. Crack; Residual stress



pdf Открыть в pdf      html Открыть в html

 

MRC ltd. / Kiev MATERIALS RESEARCH CENTRE    
www.dom.ua    

 Contact information
MRC Ltd. Materials research centre
Kiev, Krzhizhanovskogo, 3
Tel.: +38 (044) 233-24-43
Tel.: +38 (044) 237-71-87
Fax: +38 (044) 502-41-49
E-mail:
We work: Mon - Sat 10:00 - 18:00
Лицензия Creative Commons

Photos of the projects implemented by MRC TM "ДОМ", as well as articles and videos are published under the Creative Commons Attribution — with preservation of terms
(Attribution-ShareAlike) 3.0 Unported. You can freely copy, distribute, modify the materials with link to the author.

Яндекс цитирования  
name=Contacts face= 0.11