Engineering Transactions, 39, 2, pp. 181-190, 1991

The Influence of Tensile Stress on Creep Distortion

W. Osipiuk
Technical University of Białystok, Białystok

An experiment is presented concerning the process of creep in a plane state of stress under non-proportional loading by a torque and a tensile force. At a fixed value of the torque, the influence of a tensile force upon the shear deformation of non-steady creep process was analyzed. The PA4 aluminium alloys were tested. The plastic resistance function was used to describe the deformation. The concept of slip lines as proposed by Batdorf, Budiansky was used. The theoretical results derived comply with experimental data.

Full Text: PDF
Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).


W. TRĄMPGZYŃSKI, A study of the influence of the history of load on the creep of metals in a complex state of stress [in Polish], Prace IPPT PAN, 36, 1985.

W. TRĄMPCZYŃSKI, The influence of cold work on the creep of copper under biaxial states of stress, Acta. Metall., 30, 1035-1041, 1982.

Z. MRÓZ and W. TRĄMPCZYŃSKI, On the creep hardening rule for metals with memory of maximal prestresses, Int. J.Solids Struct., 20, 5, 467-486, 1984.

W. SZCZEPIŃSKI, On the effect of plastic deformation on yield condition, Arch. Mech., 15, 2, 275, 1963.

M. WANIEWSKI, The influence of the direction and the value of the preliminary plastic strain on the creep of metals [in Polish], Prace IPPT PAN, 34, 1983.

A.E. JOHNSON, J. HENDERSON and V.D. MATHUR, Creep under, changing complex creep systems, Engineer, 206, 1958.

В.С. Наместников, О ползучести при переменных нагрузках в условиах сложного напраженного состаяния, Изв. АН СССР, ОТН, 10, 1957.

К.Н.РУСИНКО, Теория пластичности и неустановившейся ползучести, Вища школа, Львов 1985.

S.B. BATDORF and B. BUDIANSKY, A mathematical theory of plasticity based on the concept of slip, NACA, 1871, 1949.

P.H. DŁUŻEWSKI, Application of the slip theory for the description of processes of inelastic strain [in Polish], Prace IPPT PAN, 37, 1985.