Control Effect on Fatigue Crack Propagation of TiNi Fiber Reinforced / Polycarbonate Composite Material

Cheong Cheon Lee; Akira Shimamoto

doi:10.4028/www.scientific.net/KEM.261-263.1085

Paper Titles

Effect of Cerium and Silicon Additions to MCrAIY on the High-Temperature Oxidation Behavior and Bond Strength of Thermal Barrier Coatings
p.1061

Imaging and Evaluation of Nano-Scale Crack by Using Ultrasonic Atomic Force Microscopy
p.1067

Fatigue Property and Fatigue Crack Propagation Behavior of Al₂O₃/A6061 MMCs at Room and Elevated Temperature
p.1073

Fatigue Life Prediction of Impacted Glass/Epoxy Composites under Variable Amplitude Loading
p.1079

Control Effect on Fatigue Crack Propagation of TiNi Fiber Reinforced / Polycarbonate Composite Material
p.1085

Normal and Abnormal Fracture Behaviors in Low-Cycle Fatigue of a Unidirectionally Reinforced SCS-6/SP-700 Composite
p.1091

In Situ Tests on Creep Behavior of Rock Mass with Joint or Shearing Zone in Foundation of Large-Scale Hydroelectric Projects
p.1097

Usefulness of the Creep Work-Time Relation for Stress Intensity Limits (S_t)
p.1103

Fatigue Characteristics of Composite Antenna Structure
p.1109

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Control Effect on Fatigue Crack Propagation of TiNi Fiber Reinforced / Polycarbonate Composite Material

Abstract:

In this paper, the TiNi fiber reinforced / PC composite material was developed, and then control of the fatigue crack growth due to the shape memory effect was studied. Enhancement of mechanical properties and resistance of deformation of the TiNi fiber reinforced / PC composite were investigated by fatigue experiments. The fatigue behavior and crack propagation were in-situ observed with a SEM servo-pulser (fatigue testing instrument with scanning electron microscope) while increasing temperature. As the results, the fatigue life was improved, and the effectiveness of fatigue resistance was confirmed. The shape memory effect and expansion behavior of the matrix caused by temperature increasing examined the effect of the fatigue crack propagation control. It was verified that the control of fatigue crack growth is attributed to the compressive stress field in the matrix due to shrinkage of the TiNi fibers above austenitic finishing temperature (Af).