Analyse thermographique des mécanismes de localisation dans des aciers doux

作者: André Chrysochoos , Hervé Louche

DOI: 10.1016/S1251-8069(98)80411-9

关键词:

摘要: Resume Un traitement d'images infrarouges permet d'etudier l'evolution des sources de chaleur sur eprouvettes d'acier sollicitees en traction monotone. On montre que, durant le palier qui precede l'ecrouissage, une ou plusieurs bandes dissipatives etroites se propagent long la partie utile l'eprouvette. decrit ensuite concentration progressive zones forte dissipation phase durcissante prefigurant ainsi striction locale l'echantillon.

参考文章(13)
R. Hill, A general theory of uniqueness and stability in elastic-plastic solids Journal of The Mechanics and Physics of Solids. ,vol. 6, pp. 236- 249 ,(1958) , 10.1016/0022-5096(58)90029-2
H. Neuhäuser, Collective micro shear processes and plastic instabilities in crystalline and amorphous structures International Journal of Plasticity. ,vol. 9, pp. 421- 435 ,(1993) , 10.1016/0749-6419(93)90046-S
C. Fressengeas, A. Molinari, Inertia and thermal effects on the localization of plastic flow Acta Metallurgica. ,vol. 33, pp. 387- 396 ,(1985) , 10.1016/0001-6160(85)90081-1
Yong H. Kim, R.H. Wagoner, An analytical investigation of deformation-induced heating in tensile testing International Journal of Mechanical Sciences. ,vol. 29, pp. 179- 194 ,(1987) , 10.1016/0020-7403(87)90051-8
G. Ferron, Influence of heat generation and conduction on plastc stability under uniaxial tension Materials Science and Engineering. ,vol. 49, pp. 241- 248 ,(1981) , 10.1016/0025-5416(81)90118-X
M. Zaiser, P. H�hner, Oscillatory Modes of Plastic Deformation: Theoretical Concepts. Physica Status Solidi B-basic Solid State Physics. ,vol. 199, pp. 267- 330 ,(1997) , 10.1002/1521-3951(199702)199:2<267::AID-PSSB267>3.0.CO;2-Q
E.W Hart, Theory of the tensile test Acta Metallurgica. ,vol. 15, pp. 351- 355 ,(1967) , 10.1016/0001-6160(67)90211-8
V.S. Ananthan, E.O. Hall, Macroscopic aspects of Lüders band deformation in mild steel Acta Metallurgica Et Materialia. ,vol. 39, pp. 3153- 3160 ,(1991) , 10.1016/0956-7151(91)90049-7
A. Benallal, On localization phenomena in thermo-elasto plasticity Archives of Mechanics. ,vol. 44, pp. 15- 29 ,(1992)