Keynote
Peridynamic Modeling of Dynamic Fracture of Brittle Ceramics in a SHPB
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The dynamic fracture behavior of the brittle ceramic, boron carbide (B4C), is investigated using our in-house split-Hopkinson pressure bar (SHPB), and Sandia’s nonlocal peridynamics simulation code, PERIDIGM. In order to study the dynamics of this particular SHPB, the initial boundary value problem (IBVP) is solved for a 1-D impact in which a finite striker bar collides with (and adheres to) the front face of a stationary incident bar bonded to a specimen of finite thickness, with the back face of the specimen bonded to another finite transmission bar; this is the classic SHPB experiment.