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샤시부 주요 조인트의 TAY Spec.제정에 이용한 초음파 방식의 패스너 시험
박창언(Changeon Park),김진호(JinhoㆍKim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
This paper focuses on the fastener test of ultrasonic method applying TAY(Torque and Angle to Yield) specifications for Chassis’s critical joints. By contrast with the existing sensors for measuring tension-compression, Ultrasonic testing method is nondestructive test that is unnecessary to make test sample machined. Due to not machined test samples, the yield strength and prooflaod of bolts doesn’t become weaken. We can measure bolt preload for clevis-type joint by applying the ultrasonic testing method. Therefore, considering the advantages of ultrasonic testing method, it is highly recommended to use this test method for measuring tension data of clevis-type joint. Especially When determining ‘TAY(Torque and angle to yield) specification’ for the clevis-type joints, the ultrasonic method is highly appropriate for measuring the tension of jointed bolts without destroying the unique proof-load/yield strength.