Control Effect on Fatigue Crack Propagation of TiNi Fiber Reinforced PMMA Composites

Cheong Cheon Lee; Akira Shimamoto

doi:10.4028/www.scientific.net/KEM.297-300.2929

Paper Titles

Effect of Process Variables on Microstructure and Mechanical Properties of Wide-Gap Brazed IN738 Superalloy
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Evaluation of Fatigue Strength and Spot Weldability of High Strength Steel Sheet for Light Weight Automobile Body
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The Cause Examination of the Crack of the End Beam for Welding Structure Type Bogie
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Effect of Fiber Orientation on the Tensile Strength in Fiber-Reinforced Polymeric Composite Materials
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Smart Cure Monitoring Method of Carbon/Epoxy Laminates Using Electric Capacitance Change with Applied Alternating Current Frequency
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Experimental Study on the Mechanical Properties of Satin Carbon Fabric/Epoxy Composites
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Mesoscopic Modeling of Deformation Behavior of Semi-Crystalline Polymer
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A Study of Deformation Behavior in Polymer
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Control Effect on Fatigue Crack Propagation of TiNi Fiber Reinforced PMMA Composites
p.2929

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Control Effect on Fatigue Crack Propagation of TiNi Fiber Reinforced PMMA Composites

Abstract:

In this paper, the TiNi fiber reinforced/PMMA (Poly methyl methacrylate) composite is developed, and its effectiveness of controlling fatigue crack growth is studied. The TiNi fiber reinforced/PMMA composite’s mechanical property enhancement and deformation resistance are also studied. The fatigue behavior and crack propagation are observed with a SEM servo-pulser (fatigue testing instrument with scanning electron microscope) while increasing temperature. As the results, it is confirmed that the fatigue life and resistance are improved. How the shape memory effect and expansion behavior of the matrix caused by temperature increasing affect the fatigue crack propagation control is examined. It is 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).

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Key Engineering Materials (Volumes 297-300)

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2929-0

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.297-300.2929

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Online since:

November 2005

Authors:

Cheong Cheon Lee, Akira Shimamoto

Keywords:

Composite, Crack Closure, Crack Propagation, Fatigue, Poly(methyl methacrylate) (PMMA), Shape Memory Alloy Actuator, Shrinkage Effect

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