Hello,
I am conducting a three-point bending simulation of a composite material using Radioss. However, I am encountering an issue where the total contact force consistently begins to decrease at a fixed time, regardless of the failure criteria employed. While the predicted flexural modulus aligns with experimental results, the flexural strength is significantly lower than anticipated.
Additionally, I have observed that inputting a lower E22 value results in a higher predicted flexural strength, and delays the decrease in total contact force.
I am confused by this problem and would appreciate any insights or assistance you can provide. Thank you!
