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Previous by Date: Subject: Re: [DCHAS-L] [EXT] Re: [DCHAS-L] Demonstration safety Date: Friday, January 14, 2022 at 10:59:41 AM Author: "Galvan, Patricia" <P_Galvan**At_Symbol_Here**ACS.ORG> |
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After a 2-year absence (thank you Covid) Professor Jimmie Oxley is again
presenting her outstanding workshops aimed at researchers working on
explosives (including sensors/detectors) and related energetic materials.
Here is some information:
Call or email Dr. Oxley. 401-874-2103; mailto:joxley**At_Symbol_Here**chm.uri.edu
More complete descriptions can be found at
http://energetics.chm.uri.edu/?q=node/95
BASIC COURSES level denoted as B = baccalaureate (bachelors), T =
technician, G = graduate]
Fundamentals of Explosives (B): overview of chemical and physical
principles; military and commercial explosives; explosive output; shock
waves, detonation and initiation;
explosive devices; homemade explosives, IEDs, peroxides; explosive
detection.
Explosive Operations: Safety and Protocol (B and T): a walk through the
safety manuals; explosive storage; relevant regulations; required testing;
safe handling; history of explo-
sive accidents.
ENERGETIC MATERIAL BEHAVIOR AND PERFORMANCE
Stability, Compatibility and Surveillance (B): thermal safety; analysis of
thermal stability and compatibility; surveillance issues; cookoff ? thermal
explosion models.
Propellants & Combustion (G): combustion of energetics ? theory and
experiments; flame spread and convective burning; flame spread in cracks;
surface ignition; propulsion
equations.
Detonation & DDT (G): detonation models and phenomenology; detonation theory
? math and thermodynamics; Detonation Shock Dynamics (DSD) model;
deflagration-
to-detonation (DDT) phenomenology and testing; DDT Theory and modeling.
Explosive Systems Hazards (G): explosive behavior related to hazards; DDT
phenomenology and testing; flame spread in damaged explosives; non-thermal
ignition sources ?
mechanical shear, electrical case studies; initiation sources from ordnance;
insensitive high explosives (IHEs).
Energetic Nanomaterials (G): combustion propagation in pyrotechnics;
thermites and metastable interstitial compositions.
EXPLOSIVE APPLICATIONS AND EFFECTS
Dynamic Diagnostics (B): Experiment time lines. Measurement techniques:
witness plates, make switches, detonation waveshaping, gas guns, pressure
gauges, embedded gauges,
ultrahigh-speed framing & streak cameras, interferometry, pulsed
radiography. Applications: device performance, wave arrival times, pressure
histories in media, HE output,
shock-wave evolution, detonation spreading.
Air Blast and Structural Response (B): blast wave from high explosives ?
scaling laws; blast from deflagration; themobarics; coupling to structures;
stress & strain; single-degree-
of-freedom system analysis; pressure-impulse failure estimates.
Materials Response under Impulsive Loading (G): emphasizes inert material
response to dynamic loads; detonation-driven shocks; material structure &
mechanical behavior;
dynamic response experiments; inelastic continuum mechanics & material
damage; material response modeling & wave codes.
Explosive Components and Train Design (B): design approach; low-energy
electroexplosive and laser-ignited devices; high-power detonators and
arrays; slapper detonator
(ESAD) technology; explosive train design & statistical reliability testing;
hazards with devices and trains; manufacturing explosive devices.
Warhead Mechanics (B): shaped charges and jet penetration; Gurney model and
combination with other physics; detonation wave interactions and effects on
metal; fuzes,
especially in-line electronic safing, arming & firing (ESADs).
Pyrotechnics (B): general principles and chemistry of pyrotechnics; roles of
pyrotechnics: heat, ignition, light, thrust; pyro devices; flares and
luminosity;
EXPLOSIVES CHEMISTRY
Terrorism Issues (B): terrorist threats; peroxide explosive preparation,
performance and safety; pre-blast detection of explosives; fragment hazards;
performance codes by law
enforcement; case studies.
Environmental Issues with Explosives (B): general explosive issues and
toxicity; explosive residue from blast; fate & transport of explosives in
soil, water, plants; sampling proto-
cols & analysis methods.
Laboratory Analysis and Forensics (B): review of actual protocols for
explosive analysis, for specific explosives; operational safety; case
studies from former forensic scientists.
Material Characterization & Processing (B): characterization & effects of
particle morphology; controlling particle morphology ? recrystallization;
formulation; particle-size
effects of safety and performance; iRDX.
Explosive Synthesis (G): synthesis of common military explosives; new
materials and preparations; advanced and high-nitrogen energetic materials.
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