Estimating the tensile strength of super hard brittle materials using truncated spheroidal specimens

Serati, Mehdi, Alehossein, Habib and Williams, David J. (2015) Estimating the tensile strength of super hard brittle materials using truncated spheroidal specimens. Journal of the Mechanics and Physics of Solids, 78 123-140. doi:10.1016/j.jmps.2015.02.011


Author Serati, Mehdi
Alehossein, Habib
Williams, David J.
Title Estimating the tensile strength of super hard brittle materials using truncated spheroidal specimens
Journal name Journal of the Mechanics and Physics of Solids   Check publisher's open access policy
ISSN 0022-5096
1873-4782
Publication date 2015-05
Sub-type Article (original research)
DOI 10.1016/j.jmps.2015.02.011
Open Access Status
Volume 78
Start page 123
End page 140
Total pages 18
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2016
Language eng
Abstract New approaches need to be introduced to measure the tensile capacity of super hard materials since the standard methods are not effective. To pursue this objective, a series of laboratory tests were constructed to replicate the fracture mechanism of diamond-based materials. Experiments indicate that under a certain compressive test condition, stresses normal to the axisymmetric line in truncated spheroidal specimens (bullet-shaped specimens) are in tension contributing to the tensile fracture of the material. From experimental and numerical studies, it is concluded that semi-prolate spheroidal specimens can be used to determine precisely the tensile strength of brittle stiff diamond-like composites.
Keyword Brittle fracture
Diamond composites
Finite element modelling
Semi-analytical approach
Super hard materials
Tensile strength measurement
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2016 Collection
 
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Created: Thu, 26 Feb 2015, 12:52:59 EST by Mehdi Serati on behalf of School of Civil Engineering