Towards an Extrinsic, CG-XFEM Approach Based on Hierarchical Enrichments for Modeling Progressive Fracture. - M. Keith Ballard; Roman Amici; Varun Shankar; Lauren A. Ferguson; Michael Braginsky; Robert M. Kirby (CoRR, 2021)

Rootfinding and Optimization Techniques for Solving Nonlinear Systems of Equations Arising from Cohesive Zone Models. - Alberto Cattaneo; Varun Shankar; M. Keith Ballard (CoRR, 2025)