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VDI 2230 PART 2 PDF SERIES
Kakaki, Mechanical behaviors of bolted joint during tightening using torque control, JSME International Journal, Series A, 41 (2) (1998) 185–191. Chung et al., Clamping performance of fastener in windshield wiper assembly using theoretical and experimental methods, International Journal of Automotive Technology, 17 (1) (2016) 99–107. Woo et al., Preventing loose bolts and reducing the number of bolts required in plate heat exchangers, International Journal of Precision Engineering and Manufacturing, 10 (1) (2009) 29–34. Hess, Experimental study of loosening of threaded fasteners due to dynamic shear loads, Journal of Sound and Vibration, 253 (3) (2002) 585–602. Kato, Ultrasonic detection of fretting fatigue damage at bolt joints of aluminum alloy plates, International Journal of Fatigue, 31 (2009) 1378–1385. Atrens, Environmental influence on the stress corrosion cracking of rock bolts, Engineering Failure Analysis, 10 (2003) 521–558. Marjanov, Thermoelastic ratcheting effect in bolted aluminum-to-aluminum connections, IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 11 (1) (1988) 54–63.Į. Li et al., Investigation into the contact characteristics of rough surfaces with surface tension, Journal of Brazilian Society of Mechanical Sciences and Engineering, 41 (343) (2019). A highly reliable structure can be produced owing to the precise control of the clamping force according to the environmental conditions of the bolted joints. The accuracy of the derived results using the test device was verified by measuring the torque-clamping force relationship of the same assembly in the actual part. The torque-clamping force relationship and those friction coefficients for an assembly of the bolt, nut, and body parts in the vehicle chassis were obtained using the device. A test device was also developed to measure the input tightening torque, clamping force, and thread friction torque. These formulas calculate the friction coefficients between the threads of the bolt and nut, and between the bolt underhead and contact area. Therefore, a method of determining tightening torque-clamping force relationship and friction coefficients in bolted joints was proposed by analyzing subdivided theoretical formulas of the input tightening torque. There is a considerable risk of various industrial accidents if the clamping force is not evaluated accurately. In bolted joints, clamping force is determined by the material, geometrical dimensions, and surface conditions of the assembly.