Pro. CAST Stress tutorial 1
Pre. CAST Load the mesh file and go to Materials / Assign Stress during solidification only will be simulated, casting will be thus considered as full ‘not empty’ (select materials suitable for stress simulation) 2
Pre. CAST We will consider here the die as rigid and the casting will be elasto-plastic. Select a material that is consistent with thermal properties assigned previously 3
Pre. CAST BC displacements need to be set in order to avoid translation or rotation of the model. Note that a rigid die won’t move as it is considered as fully constrained. 4
Pre. CAST Pro. CAST will stop the calculation as soon as all casting temperatures are below 400°C (Tliquidus of the selected material is 522°C) 5
Pre. CAST Another possibility is to stop the calculation as soon as the casting is ejected out of the die. 6
Pre. CAST For stress calculations, PIPEFS must be set to 0. 7
Pre. CAST To activate stress model set STRESS 1 Select adequate storage and calculation frequency 8
Pre. CAST Save and exit Pre. CAST 9
Pro. CAST Run the simulation 10
View. CAST Possible stress results 11
View. CAST To play simulation press Forward 12
View. CAST Contact pressure field is displayed 13
View. CAST Effective Plastic Strain of casting 14
View. CAST Hot Tearing Indicator 15
View. CAST Gap Width is showing where gaps are forming 16
Other possibilities In order to take into account the mold temperature distribution reached after several cycles (Steady state regime), the mold temperature distribution obtained in a previous calculation can be used as initial temperature for the stress calculation Thermal distribution of die after 10 cycles 17
Other possibilities We can also start a coupled thermal-stress calculation using the temperature distribution of the casting after a filling calculation Thermal distribution of casting just after filling 18