Learning Forum

[AGATHIYANSUSILR]

I am trying to simulate orthogonal cutting process in ansys workbench using explicit dynamics. i have used johnson cook model and other physical properties for the tool and workpiece. Workpiece dimensions are 10*4*3 mm and tool has 5 deg rake and clearance angle. I have made both tool and workpiece flexible with lagrangian approach. Tool and workpiece materials and its properties are taken from a science article. Mesh was body sized with element size of 0.1mm.tool and workpiece is modeled in solidworks with fixing depth of cut to 1mm

In explicit settings:

fixed support- 2 faces of workpiece of other side (bottom and left side face)

displacement- displacement was given to tool (8mm) towards the workpiece and keeping the workpiece stationary.

analysis settings - end time is given as 0.001 sec

The problem i face here is that it says the time step is too small so the result is not obtained.

i wanted to calculate the stress and temperature from this simulation

can someone please help me with this (i have attached some of the screen shots)

i coudnt capture the error message but it says ('Time step is too small')

i have also included friction co-efficient of 0.2