Finite deformation analysis of geomaterials

Problems on Yield Criterion and Dilatancy of Limit Analysis Finite Elements to Bearing Capacity of Geomaterials

The theoretical basis of classic geotechnical engineering stability problems is limit analyis thereom. Incremental loading finite elements and strength reduction finite elements were put forward by Zienkiewicz in 1975 and the methods are called by the authors Limit Analysis Finite Elements (abbreviation LAFE for short). It has been successfully applied to slope engineering, and used to bearing ...

Finite element analysis of elastic-plastic solids under Vickers indentation: surface deformation

Finite element modeling has been used to study the development of surface deformation during indentation with a Vickers indenter. A wide range of materials with different elastic modulus and yield stresses are examined. Results show that in a pyramidal indentation process, for a perfectly plastic material, sinking-in during loading can change to pile-up in unloading. This phenomenon depends on ...

Medial Techniques to Automate Finite Element Analysis of Prostate Deformation

Finite element analysis provides a principled method for modeling physical deformation and is an ideal tool to apply when a medical imaging problem requires the simulation of tissue deformation. The drawback to using finite element analysis for imaging problems is the labor and computational time that is required to construct a finite element model and solve the resulting large system of equati...

Thermal and Static Finite Element Analysis of Fixed Scroll Deformation

Medially Based Meshing with Finite Element Analysis of Prostate Deformation

The finite element method (FEM) is well suited for use in the non-rigid registration of magnetic resonance spectroscopy images (MRSI) with intraoperative ultrasound images of the prostate because FEM provides a principled method for modeling the physical deformation caused when the MRSI intra-rectal imaging probe compresses the prostate. However, FEM requires significant labor and computational...