Authors: Crocker, A.G.; Flewitt, P.E.J.; Smith, G.E.

Source: International Materials Reviews, Volume 50, Number 2, March 2005 , pp. 99-125(27)

Publisher: Maney Publishing

Abstract:

This review provides a brief survey of the computational methods which have been adopted to model fracture in materials, particularly polycrystalline metals and alloys, and considers in greater detail the use of geometrical modelling. The different modes of fracture, transgranular and intergranular brittle and ductile, are discussed, together with the modelling tools adopted for macroscale, microscale and nanoscale applications. The procedures which have been used for creating computer models of two– and three–dimensional polycrystalline materials and for propagating cracks through them are then outlined. Applications of these methods to investigate the propagation of cleavage cracks across grain boundaries, to study the influence of texture, grain shape, impurity segregation and prior creep cavitation, to examine the ductile–to–brittle transition region in ferritic steels and to consider the influence of work hardening on ductile fracture are then presented. The predictions are compared with experimental results and proposals for future studies are discussed.

Keywords: FRACTURE; MULTISCALE; COMPUTATIONAL MODELLING; ALPHA IRON; POLYCRYSTALS; BRITTLE/DUCTILE

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/0950660053517706

Publication date: 2005-03-01

More about this publication?

• The archive of International Materials Reviews has three previous titles. The full archive is available online, and each title has a separate page of volumes. Please see Metallurgical Reviews , for volumes 1-16, International Metallurgical Reviews for volumes 17-20 and International Metals Reviews for volumes 21-31

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