Adaptive Particle Finite Element Method (A‐PFEM) in Metal Cutting Processes

Abstract

Machining is very common in industry, e.g. automotive industry and aerospace industry, which is a nonlinear dynamic problem including large deformations, large strain, large strain rates and high temperatures, that implies some difficulties for numerical methods such as Finite element method. One way to simulate such kind of problems is the Particle Finite Element Method (PFEM) which combines the advantages of continuum mechanics and discrete modeling techniques. In this work we introduce an improved PFEM called the Adaptive Particle Finite Element Method (A-PFEM). The A-PFEM introduces particles and removes wrong elements along the numerical simulation to improve accuracy, precision, decrease computing time and resolve the phenomena that take place in machining in multiple scales. At the end of this paper, some examples are present to show the performance of the A-PFEM.

Machining Properties of Stone‐Plastic Composite Based on an Empirically Validated Finite Element Method

“…[8] FEM can deliver powerful solutions to the field of cutting research, as it is capable of visualizing details such as chip deformation and breaking, stress fields, force changes, heat distribution, the shape of the machined surface, and so on. [9][10][11] In previous studies, chip deformation in AISI 4340 steel was simulated and the von Mises stress was analyzed by Guo and Yen [12] through the use of FEM. This work showed that shearing plays an important role when discontinuous chips are released during machining.…”

“…[ 8 ] FEM can deliver powerful solutions to the field of cutting research, as it is capable of visualizing details such as chip deformation and breaking, stress fields, force changes, heat distribution, the shape of the machined surface, and so on. [ 9–11 ]…”