Use of generalized material point method (GIMP) to simulate shallow wedge penetration

Llano-Serna, M. A. and Farias, M. M. (2014). Use of generalized material point method (GIMP) to simulate shallow wedge penetration. In: Michael A. Hicks, Ronald B. J. Brinkgreve and Alexander Rohe, Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering. 8th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE), Delft, Netherlands, (259-264). 18-20 June 2014.

Author Llano-Serna, M. A.
Farias, M. M.
Title of paper Use of generalized material point method (GIMP) to simulate shallow wedge penetration
Conference name 8th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE)
Conference location Delft, Netherlands
Conference dates 18-20 June 2014
Proceedings title Proceedings of the 8th European Conference on Numerical Methods in Geotechnical Engineering
Place of Publication London, United Kingdom
Publisher Taylor & Francis
Publication Year 2014
Sub-type Fully published paper
Open Access Status Not Open Access
ISBN 9781138026872
Editor Michael A. Hicks
Ronald B. J. Brinkgreve
Alexander Rohe
Volume 1
Start page 259
End page 264
Total pages 6
Chapter number 44
Total chapters 117
Language eng
Abstract/Summary This paper investigates a numerical solution of a semi-infinite mass of soil being penetrated by a smooth and rigid wedge. Traditional methods such as the finite element method (FEM) meet some difficulties when large strains are involved. Hence the generalized material point method (GIMP) is used to simulate the penetration process, as a first approximation to study other problems involving large strains in geotechnical engineering. The GIMP includes many attractive features in solving engineering problems involving large deformations. Its formulation is shortly described and then an analytical solution is compared with numerical results for different depths of penetration. The results show that the method describes qualitative and quantitatively the phenomenon of penetration. Some differences comparing numerical and analytical results are attributed to artificial roughness introduced by the geometric discretization. Other reasons could be explained by the scheme of integration used in the constitutive law and time stepping, specifically during the transition between elastic and plastic behavior in the constitutive model adopted.
Keyword Numerical modeling
Geotechnical engineering
Finite element method (FEM)
Generalized material point method (GIMP)
Shallow wedge penetration
Q-Index Code B1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Wed, 11 May 2016, 14:22:13 EST by Marcelo Llano Serna on behalf of Learning and Research Services (UQ Library)