SYMPOSIA PAPER Published: 01 January 1996
STP38231S

Characteristics of Fatigue Life and Damage Accumulation of Short Fiber-Reinforced Polymer Composites

Source

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. We used short glass fiber-reinforced polycarbonate composite in our experiments. By using an in situ (real time) observational fatigue testing machine, we 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.

Author Information

Yokobori, AT
Tohoku University, Sendai, Japan
Takeda, H
Idemitsu Petrochemical Co., Chiba, Japan
Adachi, T
Ishinomaki Senshu University, Miyagi, Japan
Ha, JC
Ishinomaki Senshu University, Miyagi, Japan
Yokobori, T
School of Science and Engineering, Teikyo University, Tochigi, Japan
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Details
Developed by Committee: D30
Pages: 152–167
DOI: 10.1520/STP38231S
ISBN-EB: 978-0-8031-5564-0
ISBN-13: 978-0-8031-2046-4