TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Evaluation of K-Factor of Preloaded Bolted Joints
(Evaluarea factorului k al asamblărilor cu şuruburi de înaltă rezistenţă pretensionate)
Vol LXIV • No. 2/2012
Petre Purcăroiu*, Alexandru Pupăzescu**, Gheorghe Drăghici**
* COIFER IMPEX S.R.L., Str. Jiului, 67, Bucureşti
e-mail: p_petre1@yahoo.com
** Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti, 39, Ploieşti
e-mail: pal@upg-ploieşti.ro

 Keywords   preloaded bolted joints, high-strength preloaded bolts.

 Abstract
Load-bearing capacity and resistance of preloaded joints bolts depends on the value of torque. Correlation between tightening torque and axial preloading force is made by means of k-factor, whose value depends on the mechanical characteristics of the components of bolted structural joints. In this work is presented a way that experimental evaluation factor.

 Rezumat
Capacitatea portantă şi rezistenţa îmbinărilor prin şuruburi de înaltă rezistenţă pretensionate depinde de valoarea momentului de strângere. Corelarea dintre momentul de strângere şi efortul axial dezvoltat în şurub se face prin intermediul factorului k, a cărui valoare depinde de caracteristicile mecanice ale elementelor asamblării. În lucrare este prezentată o modalitate de evaluare experimentală a acestui factor.



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