Despite the large number of abrasive waterjet machining (AWJM) models
developed so far,
there still has been confusion about the nature by which workpiece surfaces are eroded. The
finite element method (FEM) could provide both qualitative and quantitative means in order to
explain the AWJ erosion process. This paper presents
an attempt to model the AWJM process
using the powerful tool of the finite element method. The main objective is to develop an FE
model which would enable to predict the depth of cut without any cutting experiments. The
new model takes into account the pr
ecise representation of the constitutive behaviour of the
workpiece material under AWJ dynamic loading conditions. Interaction of the abrasive particle
with the workpiece material is traced at small time increments. The model accurately predicts
the depth
of cut as a result of AWJ impact and the results are in good agreement with
experimental results. |
