Abstract
Although the creep behaviour of metals has been investigated since the beginning of the twentieth century (Andrade, 1910), a limited amount of data are available to describe this process, in the case of non-proportional, variable load conditions. The majority of tests have been performed under constant uniaxial load and do not coincide with those encountered in real components which operate under variable and complex states of stress. Such simple loading conditions do not show many of the effects found under complex stress states and which play an important role for some loading programmes (material softening observed after change in the principal component of the stress tensor, directional character of damage, etc.). So, because of modern design requirements for components such as nuclear power stations, chemical plants and so on, and due to the necessity of better knowledge of material behaviour and to the formulation of credible material models, it is necessary to obtain results of creep tests for complex stress state and variable loadings. Such experiments have not been carried out in a systematic way until relatively recently because of the technical difficulties in experimentation. Tests have been carried out basically for plane stress conditions (σ l≠0,σ4 2≠0,σ 3=0) using different test techniques.
Keywords
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Andrade, E. N. DaCosta (1910), The viscous flow in metals and allied phenomena, Proc. Roy. Soc., 84.
Findley, W. N. and Gjelsvik, A. G. (1962) A biaxial testing machine for plasticity, creep or relaxation under variable principal stress ratios. Proc. Am. Soc. Test. Materials, 62, 1103–18.
Hayhurst, D. (1974) The effects of test variables on scatter in high temperature tensile creep-rupture data, Int. J. Mech. Sci., 16, 829–41.
Hostinsky, T. and Cadek, J. (1974) Stroj pro crepove zkousky w tahu pri konstantnim napeti. Kovove Materialy, 4, XII, Bratislava.
Ohashi, Y., Tokuda, M. and Yamashita, H. (1975) Effect of third invariant of stress deviator on plastic deformation of mild steel, J. Mech. Phys. Solids, 23, 295–323.
Penny, R. and Leckie, F. (1968) The mechanics of tensile testing, Int. J. Mech. Sci10, 265–73.
Penny, R., Ellison, E. and Webster, G. (1966) Specimen alignment and strain measurement in axial creep tests, ASTM Mat. Res. Stand., 6, 76–84.
Philips, A., Liu, C. and Justusson, J. (1972) An experimental investigation of yield surfaces at elevated temperatures. Acta Mechanica, 14, 119–46.
Rogan, J. and Shelton, A. (1969) Yield and subsequent flow behaviour of some annealed steels under combined stress. J. Strain Anal., 4, 127–37.
Szczepinski, W. (1963) On the effect of plastic deformation on yield condition. Arch. Mech. Stosow., 2 (15), 275–93.
Trąmpczyński, W., Morrison, C. and Topliss, W. (1980) A tension-torsion creep-rupture testing machine, J. Strain Anal, 15, 151–7.
Waniewski, M. (1983) Wpływ kierunku i wartości wstępnej deformacji plastycznej na pełzanie metali. Prace IPPT 34/1983.
Wu, H. and Wang, T. (1982) Analysis of test system misalignment in creep test. Trans. ASME-H, 104, 280–4.
Yavari, P. and Langdon, T. (1982) A constant stress tensile creep machine for very low stresses. J. Testing and Evaluation, 10, 174–7.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 Elsevier Applied Science Publishers Ltd
About this chapter
Cite this chapter
Trąmpczyński, W., Kowalewski, Z. (1986). A Tension-Torsion Testing Technique. In: Gooch, D.J., How, I.M. (eds) Techniques for Multiaxial Creep Testing. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3415-3_4
Download citation
DOI: https://doi.org/10.1007/978-94-009-3415-3_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8027-9
Online ISBN: 978-94-009-3415-3
eBook Packages: Springer Book Archive