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RISA Mathematical Model for Vibration-Induced Loosening of Preloaded Threaded Fasteners
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A mathematical model is proposed for studying the vibration induced loosening of threaded fasteners that are subjected to harmonic transverse excitation, which often causes slippage between the ...
An Improved Stiffness Model for Bolted Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An improved stiffness model is proposed for bolted joints made of similar and dissimilar plates. A novel approach is used to obtain an expression for the effective area used for determining ...
Novel Formulation of Bolt Elastic Interaction in Gasketed Joints
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Novel formulation was proposed for studying bolt elastic interaction during the tightening of a group of fasteners in flat faced gasketed joints. The model was used for developing tightening ...
Torque-Angle Formulation of Threaded Fastener Tightening
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the evolution equations of the bearing and thread friction coefficients are proposed based on mechanical behavior of the bolted joint assembly. The study shows excellent correlation ...
Novel Formulation of the Tightening and Breakaway Torque Components in Threaded Fasteners
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New formulas are developed for the torque-tension relationship, various torque components, and breakaway torque values in threaded fastener applications. The three-dimensional aspects of the lead ...
Optical Monitoring of Bolt Tightening Using 3D Electronic Speckle Pattern Interferometry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An optical method is presented for the real-time monitoring of the bolt tightening process that provides the necessary clamping force in bolted assemblies. The method uses the 3D electronic ...
Effect of Separating Load Eccentricity on the Clamp Load Loss in a Bolted Joint Using a Strain Hardening Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A nonlinear model is proposed for studying the effect of the eccentricity of applied tensile forces on the clamp load loss in bolted joints that were initially tightened beyond the bolt elastic ...
Effect of Adhesive Thickness and Properties on the Biaxial Interfacial Shear Stresses in Bonded Joints Using a Continuum Mixture Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, an analytical model based on continuum mixture theories is developed to study the biaxial interfacial shear stresses in adhesive-bonded joints due to thermomechanical loading. The ...
Effect of Thread Pitch and Initial Tension on the Self-Loosening of Threaded Fasteners
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A mathematical model and an experimental procedure are presented to study the self-loosening phenomenon of threaded fasteners that are subjected to cyclic transverse loads. The study investigates ...
Effect of Coating Thickness on the Friction Coefficients and Torque-Tension Relationship in Threaded Fasteners
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper experimentally investigates the effect of coating thickness on the thread, bearing friction coefficients, and torque-tension relationship in threaded fasteners, as well as an investigation ...