Fracture toughness test in Abaqus

Hello,

I am currently working on fracture toughness of aluminium 2014. At the first stage an experiment of fracture toughness was carried out in order to identify the experimental results. The I model the specimen in Abaqus in order to compare experimental and FEA results. My question is how can i know what load i will use for the model? From experimental results I have that the maximum load was used for the specimen was 2kN. Am I going to use this value for load? Also the specimen is aluminium alloy 2014. I entered some material properties such as young modulus and poisson`s ratio. Are they enough or need to enter more material properties in order to get accurate results?

Kind Regards