Peter Sable
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Uncertainty analysis for transverse surface velocity measurements Open
Transverse surface velocity measurements are fundamental to performing pressure-shear plate impact experiments. Recent works have utilized slight variations of traditional velocimetry techniques that measure apparent velocity from a combin…
Conical impact fragmentation test (CIFT) Open
Conical impact fragmentation tests (CIFT) were conducted to develop and demonstrate an experimental capability for uniformly inducing controlled fragmentation in structural metals. The setup involves a conical specimen impacting a mating c…
High Strain-rate Shear and Friction Characterization of Fully-Dense Polyurethane and Epoxy Open
The characterization of polymer behavior at high strain-rates is a critical area of research driven by the use of polymers as adhesives, structural components, or as binders for energetic systems. Previous investigations have successfully …
Multi-Scale Traction Dynamics in Obliquely Impacted Polymer-Metal Targets Open
The characterization of polymer behavior at high strain-rates is a criticalarea of research driven by their use as adhesives, structural components, or evenas binders for energetic systems. Current experimentation has been limited to eithe…
Simulations of disk acceleration experiments Open
Hydrocode simulations demonstrated that experimental and sample features can affect detonation pressure measurements obtained from a disk acceleration experiment. Experimental features include a layer of material (e.g, air or mineral oil) …
Computational investigation of in-flight temperature in shaped charge jets and explosively formed penetrators Open
With the increasing use of hydrocodes in modeling and system design, experimental benchmarking of software has never been more important. While this has been a large area of focus since the inception of computational design, comparisons wi…
Dynamic compaction of yttria-stabilized zirconia with the addition of carbon-nanotubes Open
Yttria-stabilized zirconia (YSZ) is a versatile ceramic utilized for its hardness as well as thermal stability. In these experiments, carbon nanotubes (3% and 5% by weight) were added to powdered YSZ before it was statically compacted. The…
Characterizing In-Flight Temperature of Explosively Formed Projectiles in CTH Open
Code validation against experimental data is vital in building confidence for the use of simulation software in modeling and system design. Temperature data is of particular interest in the study of hypervelocity impact, however the experi…
In situ characterization of projectile penetration into sand targets Open
This work presents the results from dynamic penetration experiments in which long rod projectiles were launched into Ottawa sand at velocities ranging from 90 m/s to 350 m/s. A unique aspect of these experiments was that the sand targets w…
Ramifications of projectile velocity on the ballistic dart penetration of sand Open
With the advent of novel in-situ experimental measurement techniques, highly resolved quantitative observations of dynamic events within granular media can now be made. In particular, high speed imagery and digital analysis now allow for t…