Hello All,

I am trying to calculate the rated capacity of a J-Hook by using general simulation method and h-adaptive method. But at 200lbs of applied load, I got huge difference of stress results from general analysis to h-adaptive analysis. 

Stress at General Simulation: 107 MPA

Stress at h-adaptive analysis: 976MPA

Mesh Data: Curvature based fine mesh

Load: 200lbs

Hook Dia: 5/8''

mat: ASTM A 36

Could someone help me how do I fix this problem ? I am always getting this huge difference when I used adaptive analysis. Without adaptive analysis, How do I know that my fea results converge ?

I have attached the step files and two results. I really appreciate your help and /or suggestions.

Thanks