Effects of Strain-Softening and Strain-Rate Dependence on the Anchor Dragging Simulation of Clay through Large Deformation Finite Element Analysis

Large-deformation finite element (LDFE) analysis with the coupled Eulerian–Lagrangian (CEL) technique for large-deformation soil functions without twisting or distorting mesh. However, model does not consider strain-softening and strain-rate dependence of clay-based soils. The undrained shear strength clay is sensitive to strain rate. In addition, effect reduction accompanied by large-scale deformation should be considered. this study, anchor dragging simulations were performed considering dependence. Furthermore, a equation expressing Tresca constitutive was developed based on VUMAT, an ABAQUS/Explicit subroutine. designed so that it could linked LDFE/CEL model. verified performing comparative Mohr–Coulomb (M–C) perfect-plasticity newly constructed base strain-rate-dependence VUMAT algorithm in confirmed effects proposed enabled highly realistic simulation actual phenomenon than M–C Finally, parametric study conducted, behavior due drag revealed.