Characteristics of fatigue life and damage accumulation of short fiber-reinforced polymer composites

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:536326

Yokobori, Jr, A T ^[1]; Takeda, Hidetoshi ^[2]; Adachi, Takeshi; Ha, J C ^[3]; Yokobori, Takeo ^[4]

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1. Tohoku Univ., Sendai (Japan). Dept. of Mechatronics and Precision Engineering
2. Idemitsu Petrochemical Co., Chiba (Japan)
3. Ishinomaki Senshu Univ., Miyagi (Japan)
4. Teikyo Univ., Utsunomiya City, Tochigi (Japan). School of Science and Engineering

The relation between fatigue life and damage accumulation of fiber-reinforced polymer composite (FRP) is not yet clarified. For practical use of FRP, it is necessary to relate the fatigue life to the mechanism of damage accumulation. Damage formation is controlled by the mechanical behavior of the interface between the matrix and fiber. The authors used short glass fiber-reinforced polycarbonate composite in the experiments. By using an in situ (real time) observational fatigue testing machine, they investigated the relationship between fatigue life and damage accumulation. From these results, the fatigue life of this material was found to be dominated by damage accumulation which results from microfracture at the interface between the matrix and fiber. This microfracture is controlled by a cycle-dependent mechanism.

• OSTI ID: 536326
• Report Number(s): CONF-9411343-; ISBN 0-8031-2046-X; TRN: IM9745%%165
• Resource Relation: Conference: Symposium on fiber, matrix, and interface properties, Phoenix, AZ (United States), 14 Nov 1994; Other Information: PBD: 1996; Related Information: Is Part Of Fiber, matrix, and interface properties; Spragg, C.J.; Drzal, L.T. [eds.]; PB: 206 p.; ASTM special technical publication, 1290
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
FATIGUE
REINFORCED MATERIALS
INTERFACES
FRACTURE PROPERTIES
GLASS
POLYCARBONATES
SERVICE LIFE