Abstract
Simultaneous fiber-failure (SFF) model that determines tensile strengths for various systems of unidirectional composites comprehensively is presented. The SFF derives the strength of unidirectional composites as a function of the single-fiber strength distribution, interfacial shear strength, and matrix strength. The point of the SFF is that a fiber group which is considered to be experiencing simultaneous fiber failures triggered by neighboring fiber failures is assumed to fail when the weakest fiber in the fiber group fails. We discuss a method to determine the magnitude of the fiber group for various systems of composites on a basis of whether a crack located near a bi-materials interface penetrates into another material or deflects along the interface. The SFF is established by integrating the magnitude of the simultaneous fiber failures into the conventional Global load sharing model.
| Original language | English |
|---|---|
| Pages (from-to) | 1901-1914 |
| Number of pages | 14 |
| Journal | Journal of Composite Materials |
| Volume | 43 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2009 Aug |
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Keywords
- Carbon-carbon composite
- Ceramic matrix composite
- Polymer matrix composite
- Tensile strength
- Unidirectional composite
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
- Mechanical Engineering
- Mechanics of Materials
Cite this
A comprehensive model for determining tensile strengths of various unidirectional composites. / Koyanagi, Jun; Hatta, Hiroshi; Kotani, Masaki; Kawada, Hiroyuki.
In: Journal of Composite Materials, Vol. 43, No. 18, 08.2009, p. 1901-1914.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A comprehensive model for determining tensile strengths of various unidirectional composites
AU - Koyanagi, Jun
AU - Hatta, Hiroshi
AU - Kotani, Masaki
AU - Kawada, Hiroyuki
PY - 2009/8
Y1 - 2009/8
N2 - Simultaneous fiber-failure (SFF) model that determines tensile strengths for various systems of unidirectional composites comprehensively is presented. The SFF derives the strength of unidirectional composites as a function of the single-fiber strength distribution, interfacial shear strength, and matrix strength. The point of the SFF is that a fiber group which is considered to be experiencing simultaneous fiber failures triggered by neighboring fiber failures is assumed to fail when the weakest fiber in the fiber group fails. We discuss a method to determine the magnitude of the fiber group for various systems of composites on a basis of whether a crack located near a bi-materials interface penetrates into another material or deflects along the interface. The SFF is established by integrating the magnitude of the simultaneous fiber failures into the conventional Global load sharing model.
AB - Simultaneous fiber-failure (SFF) model that determines tensile strengths for various systems of unidirectional composites comprehensively is presented. The SFF derives the strength of unidirectional composites as a function of the single-fiber strength distribution, interfacial shear strength, and matrix strength. The point of the SFF is that a fiber group which is considered to be experiencing simultaneous fiber failures triggered by neighboring fiber failures is assumed to fail when the weakest fiber in the fiber group fails. We discuss a method to determine the magnitude of the fiber group for various systems of composites on a basis of whether a crack located near a bi-materials interface penetrates into another material or deflects along the interface. The SFF is established by integrating the magnitude of the simultaneous fiber failures into the conventional Global load sharing model.
KW - Carbon-carbon composite
KW - Ceramic matrix composite
KW - Polymer matrix composite
KW - Tensile strength
KW - Unidirectional composite
UR - http://www.scopus.com/inward/record.url?scp=68949132674&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=68949132674&partnerID=8YFLogxK
U2 - 10.1177/0021998309341847
DO - 10.1177/0021998309341847
M3 - Article
AN - SCOPUS:68949132674
VL - 43
SP - 1901
EP - 1914
JO - Journal of Composite Materials
JF - Journal of Composite Materials
SN - 0021-9983
IS - 18
ER -