A prediction method for load distribution in threaded connections

• Autorzy: Zhang D. , Gao S. , Niu S. , Liu H.

Identyfikatory

DOI

10.15632/jtam-pl.56.1.157

• Języki publikacji: EN

Abstrakty

EN

A new method has been developed for predicting the load distribution along the thread portion of a bolt and nut connection. The calculated results were validated by comparison with three-dimensional finite element analysis and Yamamoto’s method. It was shown that the load distribution predicted by the model in this paper was in good agreement with the results from finite element model, and the load ratio on the first thread by the prediction model and finite element model was slightly larger than the results from Yamamoto’s method. In addition, the results of calculation and finite element analysis indicated that the decreasing of the lead angle could improve the load distribution, the increasing of the length of thread engaged could significantly improve the load bearing capacity of the first thread, and the adopting of a material with low stiffness for the nut with respect to the bolt could improve the load distribution slightly.

Słowa kluczowe

EN

load distribution; threaded connections; finite element analysis

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2018
• Tom: Vol. 56 nr 1
• Strony: 157--168
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Zhang D.

• School of Mechanical and Electrical Engineering, North University of China, Taiyuan, China

autor

Gao S.

• State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China

autor

Niu S.

• State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China

autor

Liu H.

• State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, China

Bibliografia

• 1. Brutti C., D’Eramo M., 1987, Methods to evaluate load distribution in screw threads, Proceedings of 2th Canadian Conference of Applied Mechanics, Edmonton, 74-75
• 2. Chaaban A., Jutras M., 1992, Static analysis of buttress threads using the finite element method, Journal of Pressure Vessel Technology, 114, 209-212
• 3. Chaaban A., Muzzo U., 1991, Finite element analysis of residual stresses in threaded end closure, Journal of Pressure Vessel Technology, 113, 398-401
• 4. Chen J.J., Shih Y.S., 1999, A study of the helical effect on the thread connection by three dimensional finite element analysis, Nuclear Engineering and Design, 191, 2, 109-116
• 5. Eraslan O., Inan O., 2010, The effect of design on stress distribution in a solid screw implant: a 3D finite element analysis, Clinical Oral Investigations, 14, 411-416
• 6. Goodier J.N., 1940, The distribution of load on the threads of screws, Transactions ASME, 62, 10-16
• 7. Grosse I.R., Mitchell L.D., 1990, Non-linear axial stiffness characteristic of axisymmetric bolted joint, Journal of Mechanical Design, 112, 442-449
• 8. Hetenyi M., 1943, A photoelastic study of bolt and nut fastenings, Transactions ASME, 65, 93-100
• 9. Kenny B., Patterson E.A., 1985, Load and stress distribution in screw threads, Experimental Mechanics, 25, 208-213
• 10. Lehnhoff T.F., Wistehuff W.E., 1996, Non-linear effects on the stress and deformations of bolted joints, Journal of Mechanical Design, 118, 54-58
• 11. Motosh N., 1975, Load distribution on threads of titanium tension nut and steel bolts, Transactions ASME, 97, 162-166
• 12. Patterson E.A., Kenny B., 1986, A modification to the theory for the load distribution in conventional nuts and bolts, Proceedings of the Institution of Mechanical Engineers, 21, 1, 17-23
• 13. Sopwith D.G., 1948, The distribution of load in screw threads, Proceedings of the Institution of Mechanical Engineers, 159, 373-383
• 14. Wileman J., Choudhury M., Green I., 1991, Computation of member stiffness in bolted connections, Journal of Mechanical Design, 113, 432-437
• 15. Yamamoto A., 1980, The Theory and Computation of Threads Connection (in Japanese), Yokendo, Tokyo

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).