Abstract
A distinct dual phase composite has been developed, comprising spherical reinforcement clusters and unreinforced matrix, according to numerical simulation of crack initiation and propagation in discontinuously reinforced MMCs. The present work is aimed at interpretation of the high strengthening ratios which were actually measured in such dual phase composes. Elastic-plastic finite element modelling is utilised to analyse the strengthening ratio in a two-dimensional idealised microstructure with periodic clustering. As the degree of clustering increases, the strengthening ratio is predicted to increase. In composites with a networking cluster, much more strengthening is exhibited together with relatively uniform strain distribution. The primary mechanism leading to additional strengthening due to clustering derives from an optimum ratio in deformation resistance between a matrix and a reinforcing phase. In the proposed dual phase composites, each cluster can behave as a singe reinforcement which can deform plastically and there is no distinct interface between the cluster and the softer phase.
| Original language | English |
|---|---|
| Pages (from-to) | 925-932 |
| Number of pages | 8 |
| Journal | Materials Science and Technology |
| Volume | 14 |
| Issue number | 9--10 |
| Publication status | Published - Sep 1 1998 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Finite element analysis of observed high strengthening in composites with regularly segregated microstructures. / Toda, Hiroyuki; Gouda, T.; Kobayashi, T.
In: Materials Science and Technology, Vol. 14, No. 9--10, 01.09.1998, p. 925-932.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Finite element analysis of observed high strengthening in composites with regularly segregated microstructures
AU - Toda, Hiroyuki
AU - Gouda, T.
AU - Kobayashi, T.
PY - 1998/9/1
Y1 - 1998/9/1
N2 - A distinct dual phase composite has been developed, comprising spherical reinforcement clusters and unreinforced matrix, according to numerical simulation of crack initiation and propagation in discontinuously reinforced MMCs. The present work is aimed at interpretation of the high strengthening ratios which were actually measured in such dual phase composes. Elastic-plastic finite element modelling is utilised to analyse the strengthening ratio in a two-dimensional idealised microstructure with periodic clustering. As the degree of clustering increases, the strengthening ratio is predicted to increase. In composites with a networking cluster, much more strengthening is exhibited together with relatively uniform strain distribution. The primary mechanism leading to additional strengthening due to clustering derives from an optimum ratio in deformation resistance between a matrix and a reinforcing phase. In the proposed dual phase composites, each cluster can behave as a singe reinforcement which can deform plastically and there is no distinct interface between the cluster and the softer phase.
AB - A distinct dual phase composite has been developed, comprising spherical reinforcement clusters and unreinforced matrix, according to numerical simulation of crack initiation and propagation in discontinuously reinforced MMCs. The present work is aimed at interpretation of the high strengthening ratios which were actually measured in such dual phase composes. Elastic-plastic finite element modelling is utilised to analyse the strengthening ratio in a two-dimensional idealised microstructure with periodic clustering. As the degree of clustering increases, the strengthening ratio is predicted to increase. In composites with a networking cluster, much more strengthening is exhibited together with relatively uniform strain distribution. The primary mechanism leading to additional strengthening due to clustering derives from an optimum ratio in deformation resistance between a matrix and a reinforcing phase. In the proposed dual phase composites, each cluster can behave as a singe reinforcement which can deform plastically and there is no distinct interface between the cluster and the softer phase.
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UR - http://www.scopus.com/inward/citedby.url?scp=0343668180&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0343668180
VL - 14
SP - 925
EP - 932
JO - Materials Science and Technology
JF - Materials Science and Technology
SN - 0267-0836
IS - 9--10
ER -