What could be the most suitable model for rocks (basalt) when subjected to blast loading. Should i go for brittle damage model such as JH model, RTH MODEL  the literature contains from use of elasto-plastic  models to brittle.

i need to focus on the nature of both tensile stresses developed as well as the compressive  stresses  near to the borehole.

I use the LS Dyna to model .

Kindly suggest.