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Titolo:
LOADING AND UNLOADING OF THICK-WALLED CYLINDRICAL PRESSURE-VESSELS OFSTRAIN-HARDENING MATERIAL
Autore:
LOGHMAN A; WAHAB MA;
Indirizzi:
UNIV ADELAIDE,DEPT MECH ENGN ADELAIDE SA 5005 AUSTRALIA
Titolo Testata:
Journal of pressure vessel technology
fascicolo: 2, volume: 116, anno: 1994,
pagine: 105 - 109
SICI:
0094-9930(1994)116:2<105:LAUOTC>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
A. Loghman e M.A. Wahab, "LOADING AND UNLOADING OF THICK-WALLED CYLINDRICAL PRESSURE-VESSELS OFSTRAIN-HARDENING MATERIAL", Journal of pressure vessel technology, 116(2), 1994, pp. 105-109

Abstract

A thick-walled closed-end cylinder of isotropic, homogeneous and strain-hardening material is considered in this study. Loading is assumed to consist of a temperature gradient as well as an internal pressure. Unloading is completely elastic without considering a Bauschinger effect. A generalized plane strain case in which the material obeys Von Mises yield criterion is studied. Using the yield criterion, critical conditions for a wide range of loading combinations and thickness ratiosare investigated. After the critical condition is established, load is increased beyond the critical values and calculations are made for plastic stresses and strains and progress of plastic zone using an incremental theory of plasticity. Residual stresses are obtained as the cylinder is unloaded from a 25 and 50-percent overstrained condition. Reverse yielding is not considered while the residual stresses at the onset of reverse yielding are calculated. Loading function is assumed tofollow the stress-strain curve of SUS 304 at a constant temperature of 400-degrees-C, which is selected from the experimental work of earlier researchers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 09:42:26