Strength Evaluation for Adhesive Bonds of Adhesive with FRP Ship Body Structure

J. Ocean Eng. Technol. 2010;24(1):146-152.

Ahn Seok-Hwan,Choi Han-Kyu,Nam Ki-Woo

School of Mechanical Engineering Pukyong National University,Korea Ship Safety Technology Authority,Division of Materials Science and Engineering Pukyong National University

FRP 선체구조용 접착제의 접착강도 평가

안석환,최한규,남기우

부경대학교 기계공학부,선박기술안전공단,부경대학교 신소재공학부

Keywords: Fiber reinforced plastics (FRP), Hand lay-up method, Vacuum infusion method, Cleavage peel strength, Shear strength, Fatigue limit

핵심용어: 섬유강화 플라스틱, 수적층공법, 진공적층 공법, 박리강도, 전단강도, 피로한도

Abstract

Recently, the applied frequency of composite materials was increased from the viewpoint of lightweight, high strength and low cost when a leisure boat and a fishing boatwere built. However, studies on the mechanical properties of composite material with ship are rare. Specially, a leisure boat and fishing boat with FRP had been built by hand lay-up method. However, the vacuum infusion method is rising recently for ship building. The manufactured these FRP plates were combined by using the adhesive. Therefore, in this study Cleavage peel strength, Shear strength and fatigue limit of adhesive bonds by tensileloading were estimated. From test results, the strengths of FRP specimens made by the vacuum infusion method are higher than that of the hand lay-up method.