NDLI: Modelling of cutting tool – soil interaction

Content Provider	Springer Nature Link
Author	Nardin, A. Zavarise, G. Schrefler, B. A.
Copyright Year	2003
Abstract	The unknown interaction of the cutting tools with geological settings represents an interesting problem for the excavation machinery industry. To simplify the non-linear aspects involved in the numerical analysis of such phenomena a strategy for an accurate soil modelling has to be defined. A possible approach is the discrete one, by considering the soil as an assembly of rigid spheres. In this work this strategy is adopted. The basic idea is to concentrate at the contact level between the spheres the real mechanical behaviour of the soil. For this purpose suitable contact models have been developed, where specific elasto-plastic laws have been implemented in the node-to-segment contact formulation. The framework for the plastic behaviour consists of a failure criterion, a one-dimensional, rate-independent elasto-plastic flow rule for the normal and the tangential force and a non-linear yield criterion. The final aim of this paper is to develop mechanical models to study the behaviour of stiff soils and rocks under different loading conditions.
Starting Page	327
Ending Page	339
Page Count	13
File Format	PDF
ISSN	01787675
Journal	Computational Mechanics
Volume Number	31
Issue Number	3-4
e-ISSN	14320924
Language	English
Publisher	Springer-Verlag
Publisher Date	2003-07-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Ocean Engineering Computational Theory and Mathematics Mechanical Engineering Computational Mechanics Computational Mathematics

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