i'm enclosing a FEM package for a model i'm working on, its:
1. a quarter column (Concrete)
2. 1 Longitudenal bar (14mm)
3. 6 stirrups (8mm)
all elements difinitions are set, including concrete with proper material properties (valid strength and hardening parameters), mesh is created, and model is checked.
i'm using MES solver. yet, when i run the analysis, the model diverge !! anyone would suggest what shall i do to solve it .!
the model is attached .!