TY - GEN
T1 - Evaluation of penetration resistance of a Ball penetrometer in strain softening clay
AU - Liyanapathirana, D. S.
PY - 2008
Y1 - 2008
N2 - This paper presents numerical simulation results for Ball penetration resistance in strain-softening, rate-dependent soft clay. Since this is a problem involving large soil deformations, the analysis is carried out using an Arbitrary Lagrangian Eulerian based finite element method, where the quality of the mesh is preserved during penetration. The constitutive behavior of the soil is modelled by modifying an elastic, perfectly-plastic soil model obeying Von-Mises yield criterion to take into account the strain-softening, rate-dependent behavior of the soil. Numerical analyses are carried out for varying parameters controlling the strain-softening, rate-dependent behavior shown by naturally occurring soft clays. The evolution of periodic shear bands ahead of the advancing Ball penetrometer has been discussed providing new insights into the Ball penetration process in soft clay.
AB - This paper presents numerical simulation results for Ball penetration resistance in strain-softening, rate-dependent soft clay. Since this is a problem involving large soil deformations, the analysis is carried out using an Arbitrary Lagrangian Eulerian based finite element method, where the quality of the mesh is preserved during penetration. The constitutive behavior of the soil is modelled by modifying an elastic, perfectly-plastic soil model obeying Von-Mises yield criterion to take into account the strain-softening, rate-dependent behavior of the soil. Numerical analyses are carried out for varying parameters controlling the strain-softening, rate-dependent behavior shown by naturally occurring soft clays. The evolution of periodic shear bands ahead of the advancing Ball penetrometer has been discussed providing new insights into the Ball penetration process in soft clay.
UR - http://www.scopus.com/inward/record.url?scp=79952230582&partnerID=8YFLogxK
M3 - Conference Paper
AN - SCOPUS:79952230582
SN - 9780415491969
T3 - Futures in Mechanics of Structures and Materials - Proceedings of the 20th Australasian Conference on the Mechanics of Structures and Materials, ACMSM20
SP - 255
EP - 260
BT - Futures in Mechanics of Structures and Materials - Proceedings of the 20th Australasian Conference on the Mechanics of Structures and Materials, ACMSM20
T2 - 20th Australasian Conference on the Mechanics of Structures and Materials, ACMSM20
Y2 - 2 December 2008 through 5 December 2008
ER -