R. J. Shaffer

Finite element models of hydrofracturing and gas fracturing in jointed media

R. J. Shaffer, R. H. Nilson, F. E. Heuze, 1987 .

FEFFLAP: a finite element program for analysis of fluid-driven fracture propagation in jointed rock. Volume 1. Theory and programmer's manual

R. J. Shaffer, F. E. Heuze, Anthony R. Ingraffea, 1985 .

Propagation of fluid-driven fractures in jointed rock. Part 1—development and validation of methods of analysis

R. J. Shaffer, R. H. Nilson, F. E. Heuze, 1990 .

Developing the Chipping Corrosion Test

R. J. Shaffer, Dennis D. Davidson, M. L. Stephens, 1986 .