Numerical verification of analytical solution for autofrettaged high-pressure vessels

• Autorzy: Trojnacki A. , Krasiński M.
• Języki publikacji: EN

Abstrakty

EN

Thick-walled cylinders are widely used in various engineering applications. In an optimal design of pressurized thick-walled cylinders, an increase in the allowable internal pressure can be achieved by an autofrettage process. In the paper, analysis is carried out to develop a procedure in which the autofrettage pressure is determined analytically. The obtained equivalent stress distribution is compared with those of the conventional solid wall and of several multi-layer vessels. The results of the analytical approach are verified by FEM modelling. Tensile tests have been carried out to determine the real mechanical properties of the material of the vessel and to create a material model. The presented example illustrates the advantages of the autofrettage technique.

Słowa kluczowe

EN

autofrettage; optimal solution; finite element

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2014
• Tom: Vol. 52 nr 3
• Strony: 731--744
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Trojnacki A.

• Cracow University of Technology, Department of Mechanical Engineering, Kraków, Poland

autor

Krasiński M.

• Cracow University of Technology, Department of Mechanical Engineering, Kraków, Poland

Bibliografia

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