Dynamic behavior of berea sandstone for dry and water-saturated conditions

Wave profile measurements have been performed on dry and water-saturated Berea sandstone under shock compression loading conditions using a single-stage light gasgun. The wave motion was monitored with a VISAR velocity interferometer. The impact velocities achieved in the experiment were in the range between 433 m/s and 1013 m/s. Significant differences were observed in the dynamic response of dry and water-saturated Berea sandstone. This work presents the experimental results as well as simulation results obtained using a phenomenological model of Berea sandstone. The model includes effects of compaction, plastic yielding and damage. In the model, the behavior of the water-saturated material was addressed with a modified effective stress model. The simulated wave profiles agree with the experimental data for both dry and water-saturated conditions. This validates the current model and provides a baseline for its further application.