Abstract
The occurrence of instabilities in plastic deformation under various conditions is reviewed and their intimate connection with localization of shear is emphasized. This is a consequence of the collective behaviour of, e.g. dislocations in crystals, and is enhanced by macroscopic changes of specimen geometry. Various physical mechanisms of instabilities are compiled and experimental techniques to observe them are compared. A few examples, i.e. the evolution of slip bands and shear bands, and the propagation of Portevin-LeChatelier bands and Lüders bands are considered in some detail.
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References
Estrin, Y. and Kubin L.P., Res Mechanica, 1988, 23, 197–221
Neuhäuser, H. in Patterns. Defects and Materials Instabilities, eds. D. Walgraef and N.M. Ghoniem, Kluwer Acad. Publ., Dordrecht, 1990, pp. 241–276
Neuhäuser, in Mechanical properties of Solids: Plastic Instabilities, eds. V. Balakrishnan and E.C. Bottani, World Scientific, Singapore, 1986, pp. 209–252
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© 1991 Elsevier Science Publishers Ltd
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Neuhäuser, H. (1991). Collective Dislocation Behaviour and Plastic Instabilities — Micro and Macro Aspects. In: Boehler, JP., Khan, A.S. (eds) Anisotropy and Localization of Plastic Deformation. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3644-0_18
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DOI: https://doi.org/10.1007/978-94-011-3644-0_18
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-85166-688-1
Online ISBN: 978-94-011-3644-0
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