Assignment 4-RADIOSS Material Laws Challenge
Objective: To perform simulation for 7 different case as shown in the above 3 slides
Case 1: The Model was run as it without doing any changes to the model and the model was run for simulation through analysis tab
Results : NC= 49379 T= 5.0100E+00 DT= 1.0113E-04 ERR= 0.8% DM/M= 0.0000E+00
ELAPSED TIME= 48.39 s REMAINING TIME= 0.00 s
TOTAL.......................: .1934E+02 100.00 %
ELAPSED TIME = 48.81 s
0:00:48
Case 2: For case 2 the cahnges were made to fail card as desired above
Results: NC= 49216 T= 5.0100E+00 DT= 1.0687E-04 ERR= 4.1% DM/M= 0.0000E+00
ELAPSED TIME= 62.35 s REMAINING TIME= 0.00 s
TOTAL.......................: .4886E+02 100.00 %
ELAPSED TIME = 62.81 s
0:01:02
Case 3: The Johnson card was deleted and simulation was run again to see the changes
NC= 49407 T= 5.0100E+00 DT= 1.0104E-04 ERR= 0.8% DM/M= 0.0000E+00
ELAPSED TIME= 47.87 s REMAINING TIME= 0.00 s
TOTAL.......................: .1820E+02 100.00 %
ELAPSED TIME = 48.32 s
0:00:48
Case 4: Delete the value of EPS max and run the simulation
NC= 49303 T= 5.0100E+00 DT= 1.0104E-04 ERR= 2.3% DM/M= 0.0000E+00
ELAPSED TIME= 52.69 s REMAINING TIME= 0.00 s
TOTAL.......................: .4119E+02 100.00 %
ELAPSED TIME = 53.59 s
0:00:53
Case 5: The Mat card was edited with above mentioned values and
NC= 47968 T= 5.0099E+00 DT= 1.0954E-04 ERR= 1.3% DM/M= 0.0000E+00
ELAPSED TIME= 42.98 s REMAINING TIME= 0.00 s
TOTAL.......................: .1212E+02 100.00 %
ELAPSED TIME = 43.43 s
0:00:43
Case 6: The law 27 model was imported and neccessary changes were made
TOTAL.......................: .2356E+02 100.00 %
ELAPSED TIME = 39.65 s
0:00:39
Case 7 : The Card image was changed to Law 36 and neccesary cahnges were made and new curve was created
As curve 1
NC= 53155 T= 5.0101E+00 DT= 9.4240E-05 ERR= -1.9% DM/M= 0.0000E+00
ELAPSED TIME= 52.76 s REMAINING TIME= -0.00 s
TOTAL.......................: .1930E+02 100.00 %
ELAPSED TIME = 52.79 s
0:00:52
Conclusion: From the above results we can conclude that best material should be selected for the better results
And for the less simulation time we can go with Law 27 model case 6 and for the less stress we can go with case 4
From the above simulations we learnt how to create material card and edit the same and what are all the properties for the material used in daily life
Law 36 is the most commonly used material beacause in this elements are not getting deleted abruptly which can be seen from above simulations