Greetings, 

Im currently modelling an lvl beam with bolted connections in abaqus for my bachelors thesis, when i run the model an error shows that " Anisotropic material properties without a local orientation system have been defined for 25600 elements. Anisotropic material properties must be defined in a local orientation system. The elements are identified in element set ErrElemAnisotropicMaterial"

I have already assigned the local datum orientation to the lvl partitions that i have constructed and the no of elements in the error reduced, but i have noticed that the parts where i partitioned where the bolt hole exists, the partition was divided into 3 portions, where i cant assign it local orientation 

and im having a problem with materials properties, where it shows " the stiffness matrix is not definite positive"

i need your help pls, i have uploaded my model to google drive in the following link:

https://drive.google.com/folderview?id=0B0KR5lWQf2q8YWE5SUtlX0licTQ&usp=sharing

your help is much appreciated.

sayf hashimy 

sayfhashimy@gmail.com