Compressive behavior and the tension-compression fatigue response of resin transfer molded IM7 PW/PR 500 composite laminate with a circular notch have been studied. Fatigue damage characteristics have been investigated through the changes in the laminate strength and stiffness by gradually incrementing the fatigue cycles at a preselected load level. Progressive damage in the surface of the laminate during fatigue has been investigated using cellulose replicas. Failure mechanisms during static and cyclic tests have been identified and presented in detail. Extensive debonding of filaments and complete fiber bundle fracture accompanied by delamination were found to be responsible for fatigue failures, while fiber buckling, partial fiber fracture and delamination were characterized as the failure modes during static tests. Weibull analysis of the static, cyclic and residual tests have been performed and described in detail. Fractured as well as untested specimens were C-scanned, and the progressive damage growth during fatigue is presented. Optical Microscopy (OM) and Scanning Electron Microscopy (SEM) for the fractured specimen were also performed and the analysis of the failure behavior is presented.
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January 1996
Technical Papers
Response of Resin Transfer Molded (RTM) Composites Under Reversed Cyclic Loading
Hassan Mahfuz,
Hassan Mahfuz
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
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Anwar Haque,
Anwar Haque
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
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Daixu Yu,
Daixu Yu
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
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Shaik Jeelani
Shaik Jeelani
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
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Hassan Mahfuz
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
Anwar Haque
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
Daixu Yu
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
Shaik Jeelani
Materials Research Laboratory, Tuskegee University, Tuskegee, AL 36088
J. Eng. Mater. Technol. Jan 1996, 118(1): 49-57 (9 pages)
Published Online: January 1, 1996
Article history
Received:
July 24, 1994
Revised:
March 19, 1995
Online:
November 27, 2007
Citation
Mahfuz, H., Haque, A., Yu, D., and Jeelani, S. (January 1, 1996). "Response of Resin Transfer Molded (RTM) Composites Under Reversed Cyclic Loading." ASME. J. Eng. Mater. Technol. January 1996; 118(1): 49–57. https://doi.org/10.1115/1.2805933
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