ABAQUS error in XFEM: Loading condition might make main crack under compression

Im modelling a 3D RVE in ABAQUS and using XFEM to study stationary cracks. Im facing 2 problems with it.*

1. The above mentioned error:Loading condition might make maincrack under compression.

2. For a mode 1 crack Im getting comparable values of K1 and K2 from the contour intergrals (Im considering the 3rd and 4th contours average)

Please help.

Can some help me with the error The loading condition might make main crack under compression in ABAQUS?. Available from: [url] https://www.researchgate.net/post/Can_some_help_me_with_the_error_The_loading_condition_might_make_main_crack_under_compression_in_ABAQUS [/url] [accessed Apr 16, 2015].