An expert system for the determination of creep constitutive equations based on continuum damage mechanics
Source abstract
Abstract
Methods have been developed for the determination of a suitable stress range over which uniaxial creep tests should be carried out in order to find the best constitutive equations for the material. The method is based on a proposed empirical relation and Ashby deformation mechanism maps. An automatic data logging system has been developed for the capture of uniaxial creep test data and a robust and reliable optimization scheme has been devised for the determination of the creep constitutive equations for a material. The above methods have been combined in an expert system that enables the user without specialist knowledge to carry out uniaxial creep tests to determine the best creep constitutive equations for a material. The system is stored on two floppy disks and is run from any IBM compatible microcomputer. The expert system has been used to determine the creep constitutive equations for copper.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metal Forming Simulation Techniques · Metallurgy and Material Forming · Fatigue and fracture mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Mechanical and Process Engineering, University of Sheffield, UK
References (22)
Show source-provided references
1. Kachanov L. M. The theory of creep (English translation, Edited by Kennedy A. J.), 1960, (Wetnerley, British Library, Boston Spa), Chapters IX, X.
2. Rabotnov YU. M. Creep problems in structural members (English translation, edited by Leckie, F. A.), 1967, North Holland, Amsterdam, Chapter 6.
3. Beaumont P. W. R. ‘Fatigue damage mechanics in fibre composites’, Materials 88, Materials and Engineering Design, 1988, Institute of Metals, London.
4. Lemaitre J. · 1985
5. Dyson B. F., Osgerby S. ‘Modelling Synergy Between Creep and Corrosion for Engineering Design, Materials 88, Materials and Enginering Design, 1988 Institute of Metals, London.
6. 10.1016/0079-6425(82)90001-910.1016/0079-6425(82)90001-9 ↗
7. 10.1016/0001-6160(77)90135-310.1016/0001-6160(77)90135-3 ↗
8. Zienkiewicz O. C. · 1977
9. Hayhurst D. R. · Proc. Royal Soc. Lond. · 1984 · 311 · 131
10. Hayhurst D. R. · Proc. Royal Soc. Lond. · 1984 · 311 · 103
11. 10.1016/0022-5096(75)90032-010.1016/0022-5096(75)90032-0 ↗
12. Lavender D. A. Deformation and rupture of structures due to combined cyclic plasticity and creep, PhD thesis, University of Leicester, 1987.
13. Loveday M. S., Dyson B. Creep and fracture of engineering materials and structures, 1990, (Institute of Metals, London). pp. 941–950.
14. 10.1115/1.322649010.1115/1.3226490 ↗
15. Charniak E. · 1985
16. Winston P. H., Berthold K., Horn P. LISP, 1984, Addison-Wesley, London.
17. Megahed M. M., Ponter A. R. S. ‘Creep and plastic ratchetting in a simple structure’, Report No. 79–9, Dept. of Mech. Engg., University of Leicester, November 1979.
18. 10.1016/0001-6160(79)90105-610.1016/0001-6160(79)90105-6 ↗
19. Burgreen D. · 1975
20. 10.1016/0020-7403(90)90150-H10.1016/0020-7403(90)90150-H ↗
21. Brown P. R. Private Communication, University of Leicester, 1987.
22. 10.1016/0020-7403(90)90065-Q10.1016/0020-7403(90)90065-Q ↗