... at the line of action of the transverse excitation. 13 05 2011 15 08 2011 17 08 2011 25 01 2012 25 01 2012 fasteners mathematical analysis vibrations self-loosening countersunk fasteners conical angle thread pitch In many applications, it is critically...

... relaxation into account. 06 04 2010 25 09 2011 26 09 2011 11 01 2012 11 01 2012 creep elasticity fasteners gaskets gasket creep relaxation clamp load loss gasketed bolted joints Gaskets are often used to create and maintain a seal between two separable...

... the numerical results of bolt preload reduction to experimental ones. fasteners finite element analysis flanges gaskets pipes stress-strain relations thermal expansion Young's modulus pipe flange connection leakage FEM elevated temperature nonlinear sheet gasket It is particularly...

... prediction method proposed in this paper was also validated against the experimental data presented by other researchers, and the errors between the predicted values and the experimental results were within 18%. 26 02 2010 02 03 2011 07 12 2011 07 12 2011 creep fasteners finite...

... joint components are given. The results from the proposed analytical model are compared with those obtained from finite element models. 18 02 2011 26 04 2011 02 05 2011 02 12 2011 02 12 2011 fasteners finite element analysis flanges heat exchangers seals (stoppers...

... (structures) fasteners finite element analysis internal stresses reliability stress measurement welding weldment residual stress slitting method contour method Welding is widely used in the fabrication of pressure vessels and pipe-work for power plants. This joining process is known...

... before it is used in the bolt application. The experimental study by using Material Testing System (MTS) machine and fastener testing system will be conducted for the experimental calibration and verification. 09 01 2010 06 07 2011 06 07 2011 02 12 2011 02 12 2011...

... components on a vibration-isolation table. A MATLAB software is developed for image acquisition and phase data calculations that yield the out-of-plane surface deformation caused by the bolt preload. The test fixture uses an M12 steel fastener and aluminum joint. For miniature screw applications, however...

... the stress amplitude at the first thread root of bolt. 10 09 2009 26 05 2011 03 10 2011 03 10 2011 Threaded fasteners are the most widely used machine elements to clamp structural members and machine parts. A fatigue failure of one threaded fastener often causes a serious...

... to be replaced at a time and identify those flanges for which the bolt cannot be replaced in service. 25 02 2010 10 07 2010 16 05 2011 16 05 2011 assembling beams (structures) elasticity fasteners finite element analysis flanges gaskets leak detection maintenance engineering...

... 2011 09 05 2011 elasticity fasteners finite element analysis flanges mechanical contact Bolted joints are tightened so as to obtain a uniform preload in all of the bolts since this improves the behavior of the joint ( 1 2 3 4 5 ). In the case of wind generators, the preload...

... an external separating load. After the initial tightening of the fastener past its elastic limit, the subsequent application of a tensile separating force on the joint tends to increase the fastener tension in a nonlinear fashion, and, simultaneously, reduce the clamping force in the bolted joint from its...

..., it is at the designer’s discretion and judgment to apply the design formulas from both Appendix 2 and the rigidity requirements of Appendix M ( 7 ). design engineering elasticity fasteners flanges gaskets 17 05 2009 23 03 2010 10 02 2011 10 02 2011 Comparison of flange rotation...

... fastener tension F c clamping force F i initial fastener tension (preload) F e separating force δ b fastener elongation δ c joint compression K b bolt stiffness K b ′ equivalent bolt...

.... A rectangular box-shape bolted flange connection with a compressed sheet gasket subjected to internal pressure Figure 1 shows a rectangular box-shape bolted flange connection with a compressed sheet gasket fastened by bolts and nuts with a bolt preload F f . When the assembly is subjected...

...-Hill , New York . ANSYS , 2006 , ANSYS Standard Manual, Version 11.0. 17 08 2009 26 11 2009 19 10 2010 19 10 2010 beams (structures) elasticity fasteners finite element analysis flanges mechanical contact Webjörn ( 6 7 ) compared the different...

.... Res. Counc. Bull. 0043-2326 , 507 , pp. 1 – 14 . 23 04 2008 14 12 2009 05 05 2010 05 05 2010 couplings fasteners finite element analysis plasticity reliability elastic interaction multipass tightening single-pass tightening gasketed flange When...

... stress and bolt bending stress. 02 07 2008 27 07 2009 08 10 2009 bending fasteners finite element analysis heat transfer thermal stresses The magnitude of bolt preload is varied when the bolted joint is subjected to thermal load. It is caused by the difference...

...Sayed A. Nassar; Xianjie Yang 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 strategies that would achieve a more uniform clamp load in the flange...

... bending couplings durability fasteners flanges reliability seals (stoppers) structural engineering 08 05 2008 24 11 2008 07 04 2009 2009 American Society of Mechanical Engineers ...