The tensile load was applied at the rate of 2mm/min as per ASTM D638 on the short fiber polypropylene composites in Abaqus using ductile fracture criteria. I have engineering stress-strain data getting from the experiment. From that data, I am giving plastic stress and strain in ductile criteria. But the load-displacement curve getting from Abaqus does not reach the ultimate point of the experimental p-d curve. I don't know what is the problem? Is there any problem with choosing the failure criteria. Here below I attached my load-displacement curve both experiment and numerical.