Computational and experimental analysis of the bolt head trimming process

• Autorzy: Petruska J. , Borkovec J.
• Konferencja: Modelling and optimization of physical systems/International Seminar of Applied Mechanics (9 ; 27.05-29.05.2005 ; Wisła, Polska)
• Języki publikacji: EN

Abstrakty

EN

Bolt head trimming is a fast, complicated cutting process including material failure. For this reason, explicit solver LS-Dyna was used for its simulation. The aim of the simulation was to minimize the loading of the trimming matrix, so that its durability could be enhanced. Three geometrical versions were solved and the results were compared with respect to the cutting work and contact force. As the reliability of the computational model can be questionable, an experiment was carried out to verify the computational results. Cutting force, shape of trimmed areas and distribution of plastic deformation and shear bands were compared with the computational results.

Słowa kluczowe

EN

bolts; trimming; bold head

PL

śruby; przycinanie; główka śruby

• Wydawca: Wydawnictwo Katedry Mechaniki Stosowanej
• Czasopismo: Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska
• Rocznik: 2005
• Tom: z. 28
• Strony: 121--124
• Opis fizyczny: Bibliogr. 4 poz.

Twórcy

autor

Petruska J.

• Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno University of Technology, Czech Republic

autor

Borkovec J.

• Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno University of Technology, Czech Republic

Bibliografia

• [1] Janiček, L., Petruška, J., Maroš, B., Rusz, S: Cold forming of bolts without thermal treatment, J.Mat.Proc.Tech. 125-126, pp. 341-346, 2002.
• [2] Bořkovec, J.., Petruška, J., Foret, R.: Numerical simulation of the bolt head trimming process, Int.Conf Engineering Mechanics 2005, Svratka, 9.-12.5.2005.
• [3] Johnson,G.R., Cook,W.H.: A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures, Proc. 7th Int.Symp. on Ballistics, pp.541-547, Hague, Netherlands, 1983.
• [4] Needleman, A., Tvergaard,V.: An analysis of ductile rupture in notched bars, J. Mech. Phys. Solids 32, No.6, 1984.