Mechanics of fiber fragmentation in single-fiber composite

Masaaki Nishikawa; Tomonaga Okabe; Nobuo Takeda

Mechanics of fiber fragmentation in single-fiber composite

Masaaki Nishikawa, Tomonaga Okabe, Nobuo Takeda

ENG - Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We investigate the fragmentation process in a single-fiber composite (SFC), using a cohesive zone model. The evolution of microscopic damage near a fiber break has been investigated in detail. The results indicate that cohesive parameters for the fiber-matrix interface control the microscopic damage near a fiber break and the fragmentation process. We discuss how the major damage mode near a fiber break transits from interfacial debonding to matrix cracking. The transition to a damage pattern dominated by matrix cracking makes it difficult to use the fragmentation process to evaluate interface properties in an SFC test. The discussion demonstrates that the fiber strength distribution can be obtained by fitting the fragmentation process while the estimation of interfacial properties based on SFC tests becomes difficult because of the damage transition to matrix cracking in the case of strong interface.

Original language	English
Title of host publication	Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness
Subtitle of host publication	From Green Composites to Aerospace"
Publication status	Published - 2007 Dec 1
Event	16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace" - Kyoto, Japan Duration: 2007 Jul 8 → 2007 Jul 13

Publication series

Name	ICCM International Conferences on Composite Materials

Other

Other	16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace"
Country/Territory	Japan
City	Kyoto
Period	07/7/8 → 07/7/13

Keywords

Cohesive zone model
Fiber-reinforced polymer matrix composites
Interface properties
Microscopic damage
Single-fiber composite

ASJC Scopus subject areas

Engineering(all)
Ceramics and Composites

Cite this

Mechanics of fiber fragmentation in single-fiber composite. / Nishikawa, Masaaki; Okabe, Tomonaga; Takeda, Nobuo.

Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". 2007. (ICCM International Conferences on Composite Materials).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nishikawa, M, Okabe, T & Takeda, N 2007, Mechanics of fiber fragmentation in single-fiber composite. in Proceedings of the 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace". ICCM International Conferences on Composite Materials, 16th International Conference on Composite Materials, ICCM-16 - "A Giant Step Towards Environmental Awareness: From Green Composites to Aerospace", Kyoto, Japan, 07/7/8.

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title = "Mechanics of fiber fragmentation in single-fiber composite",

abstract = "We investigate the fragmentation process in a single-fiber composite (SFC), using a cohesive zone model. The evolution of microscopic damage near a fiber break has been investigated in detail. The results indicate that cohesive parameters for the fiber-matrix interface control the microscopic damage near a fiber break and the fragmentation process. We discuss how the major damage mode near a fiber break transits from interfacial debonding to matrix cracking. The transition to a damage pattern dominated by matrix cracking makes it difficult to use the fragmentation process to evaluate interface properties in an SFC test. The discussion demonstrates that the fiber strength distribution can be obtained by fitting the fragmentation process while the estimation of interfacial properties based on SFC tests becomes difficult because of the damage transition to matrix cracking in the case of strong interface.",

keywords = "Cohesive zone model, Fiber-reinforced polymer matrix composites, Interface properties, Microscopic damage, Single-fiber composite",

author = "Masaaki Nishikawa and Tomonaga Okabe and Nobuo Takeda",

year = "2007",

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AU - Okabe, Tomonaga

AU - Takeda, Nobuo

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N2 - We investigate the fragmentation process in a single-fiber composite (SFC), using a cohesive zone model. The evolution of microscopic damage near a fiber break has been investigated in detail. The results indicate that cohesive parameters for the fiber-matrix interface control the microscopic damage near a fiber break and the fragmentation process. We discuss how the major damage mode near a fiber break transits from interfacial debonding to matrix cracking. The transition to a damage pattern dominated by matrix cracking makes it difficult to use the fragmentation process to evaluate interface properties in an SFC test. The discussion demonstrates that the fiber strength distribution can be obtained by fitting the fragmentation process while the estimation of interfacial properties based on SFC tests becomes difficult because of the damage transition to matrix cracking in the case of strong interface.

AB - We investigate the fragmentation process in a single-fiber composite (SFC), using a cohesive zone model. The evolution of microscopic damage near a fiber break has been investigated in detail. The results indicate that cohesive parameters for the fiber-matrix interface control the microscopic damage near a fiber break and the fragmentation process. We discuss how the major damage mode near a fiber break transits from interfacial debonding to matrix cracking. The transition to a damage pattern dominated by matrix cracking makes it difficult to use the fragmentation process to evaluate interface properties in an SFC test. The discussion demonstrates that the fiber strength distribution can be obtained by fitting the fragmentation process while the estimation of interfacial properties based on SFC tests becomes difficult because of the damage transition to matrix cracking in the case of strong interface.

KW - Cohesive zone model

KW - Fiber-reinforced polymer matrix composites

KW - Interface properties

KW - Microscopic damage

KW - Single-fiber composite

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Y2 - 8 July 2007 through 13 July 2007

ER -

Mechanics of fiber fragmentation in single-fiber composite

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Keywords

ASJC Scopus subject areas

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