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Comparison of Fatigue Tensile Properties of Scrimp-Gfrp and Hlup-Gfrp

Published online by Cambridge University Press:  05 May 2011

H.-J. Lin  and
C.-I Liao
H.-J. Lin*
Affiliation:
Dept. of Engineering Science and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C. Department of Electrical Engineering, National Panghu University, Penghu, Taiwan 88046, R.O.C.
C.-I Liao*
Affiliation:
Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C.
*
*Professor
**Ph.D.
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Abstract

Seemann Composites Resin Infusion Molding Process (called SCRIMPTM for short) is a resin transfer molding process which is commonly used in the manufacture of yachts. Fiber-Reinforced Plastic (called FRP for short) manufactured by using SCRIMP has higher fiber-volume-content than that manufactured by using Hand Lay-Up Process (called HLUP for short). In general, the tensile strength and fatigue strength are used to compare the tensile properties of SCRIMP-FRP and HLUP-FRP. In this paper, another viewpoint of comparison is used to compare their tensile properties, especially their fatigue tensile properties. Experiments on the fatigue life and damage phenomena in SCRIMP-FRP and HLUP-FRP were performed. Experimental results show that if the same fibers are used in SCRIMP-FRP and HLUPFRP, SCRIMP-FRP will be much thinner than HLUP-FRP and few air bubbles exist inside SCRIMP-FRP. Although SCRIMP-FRP has higher tensile strength than HLU-FRP, the tensile forces they can bear are approached. That means, processes do not affect the tensile load carrying capacities of FRP. However, SCRIMP-FRP exhibits shorter fatigue life than HLUP-FRP. The reason for that is discussed in this paper and qualitative analysis is performed to explain the author's contentions.

Keywords

FRPFatigueSCRIMP.
Type
Articles
Information
Journal of Mechanics , Volume 24 , Issue 3 , September 2008 , pp. 215 - 222
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2008

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