19th Biennial APS Conference on Shock
Compression of Condensed Matter

SCCM-2015 Scientific Program

The SCCM-2015 scientific program consists of plenary, invited, and contributed presentations in the following 13 technical areas and 3 focus topics

TECHNICAL AREAS
1. Detonation and shock-induced chemistry

These sessions revolve around the experimental or theoretical analysis of chemical changes within a material following exposure to a shock wave. The source of the shock wave may be a detonation, explosion, gun, laser, or any other system capable of providing a strong enough shock wave to induce a chemical change within the material. Sample materials are to include energetic and reactive materials, metals, and organic systems. Equation of state studies should include investigations into the reactive EOS regime.

2. Energetic and reactive materials

These sessions are focused on synthesis, characterization and theory/modeling of energetic and eactive materials. In addition to traditional energetic materials, these sessions will highlight a variety of approaches that are being pursued to develop novel energetic materials, including chemical synthesis of high nitrogen compounds, formation of new cocrystals, development of metal clusters, and fabricating engineered materials such as reactive foils.

3. Equations of state

These sessions encompass all aspects, - experimental and theoretical, of the relationship between thermodynamic variables such as pressure, volume, temperature, energy, entropy and their derivatives describing various states of matter at extreme conditions. Submissions on multi-phase equation of state of new materials, extended coverage of phase space, advances in analysis and simulation methods, and new techniques are particularly encouraged.

4. Experimental developments

These sessions cover experimental developments in the production of high energy density states and the diagnosing of material properties of condensed matter systems at elevated pressures and temperatures, particularly under dynamic compression loading. Presentations will discuss advancements in experimental facilities and configurations used to achieve extreme states as well as advances in techniques used to diagnose such states. Examples include spectroscopic methods, velocimetry (ORVIS, VISAR, PDV), novel shock and high pressure facilities, high energy beam diagnostics, time-resolved methods (e.g. Raman, x-ray diffraction and electron microscopy), femtosecond and terahertz methods, and related areas.

5. First-principles and molecular dynamics

These sessions encompass a wide range of simulations related to materials and chemistry under dynamic loading and extreme thermodynamic conditions. They include quantum approaches such as Density Functional Theory calculations, semi-empirical method development and applications, classical molecular dynamics, development of force fields and interatomic potentials for simulation of matter at extreme conditions, simulations of shock-induced dislocations and plasticity in metals and other materials, and atomistic simulation of reactive chemistry including detonation and deflagration.

6. Geophysics and planetary science

The sessions on Geophysics and Planetary Science will encompass presentations in areas relevant to large-scale planetary impacts and conditions approaching those of deep planetary interiors. Presentations that are experimental or computational in nature may highlight new understandings of planetary interiors, dynamics, and origins of planetary systems. This session also encourages presentations on fast deformation of crustal materials, which may provide further insights into failure mechanisms.

7. Grain-scale to continuum modeling

These sessions present and discuss recent ideas and results in analytical, experimental, and numerical aspects of grain scale to continuum modeling related to shock compression of condensed matter. Applications of multiscale modeling and simulation including mesh-free, particle, and other innovative discretization methods in the area of shock compression of condensed matter are challenging due to limitations of existing experimental and computational capabilities. The presentations will focus on innovative multiscale descriptions of shock-wave coupling of strong material deformations with dynamic strength, phase transitions, chemistry, and thermo-mechanical-chemical responses to extreme loading conditions.

8. High energy density physics/warm dense matter

These sessions focus on experimental, theoretical and computational descriptions of extreme material states that lie between condensed matter and high temperature plasma, which are found in the interior of large gas and ice giant planets, as well as on the pathway to inertial confinement fusion (ICF). Presentations describing novel approaches addressing the limits of scientific understanding of the phenomena by which atoms, ions and electrons interact and organize over a range of extreme conditions are particularly sought.

9. Inelastic deformations, fracture and spall

These sessions encompass state-of-the-art experimental, theoretical, modeling and simulation studies of the dynamic and shock-induced mechanical behavior, damage evolution, and fracture response of materials. Studies of the influence of strain rate, temperature, stress-state, and microstructure on the elastic-plastic response, phase stability, and micro-mechanisms controlling inelastic deformation, damage, and failure are sought. Research addressing the spatial, temporal, and materials aspects of plasticity, damage, and fracture phenomena are particularly encouraged.

10. Materials strength

These sessions encompass recent studies on the dynamic strength of materials. Topics of interest include experimental, theoretical, and modeling efforts directed towards understanding materials deformation under extreme loading conditions. Work spanning a range of rates and phase space, including research relating the underlying deformation mechanisms from the micro-scale to the continuum, and in situ investigations of time-dependent materials response are particularly encouraged.

11. Particulate, porous, and composite materials

These sessions will cover recent investigations of dynamic response of particulate, porous and composite materials. Examples of materials include porous/cellular meta-materials, low-dimensional granular systems composed from ductile/brittle particles, three-dimensional granular packings of ductile/brittle particles and solid/solid or solid/porous laminates. Usually these materials are characterized by strongly nonlinear behavior resulting in a stationary shock or solitary wave propagation depending on the duration of the incoming pulse and their meso-structural parameters. Presentations related to tailoring dynamic response using meso-structural design based on analytical and/or numerical modeling coupled with experiments are especially welcomed.

12. Phase transitions

These sessions are focused on the behavior of materials undergoing phase changes due to the influence of pressure, shear and temperature under shock conditions. The scope of topics includes solid-solid, solid-liquid as well as amorphous transitions and can cover a range of spatial and temporal scales and strain rates. A broad spectrum of presentations are encouraged specifically focusing on fundamental issues, such as the nature of transformation pathways, and the interplay of phase transitions and deformation processes. Experiments can span measurements conducted at lab scale to those utilizing in-situ probes at user facilities. Similarly, presentations on modeling at all scales, from atomistic and mesoscale to engineering scales, are welcomed.

13. Soft matter

These sessions encompass state-of-the-art experimental, theoretical, and modeling and simulation studies of the dynamic behavior of polymers, biomaterials, and low-impedance materials. These materials exhibit strong effects of strain-rate dependence, non-linear Us-Up Hugoniots, kinetic effects, high-pressure dissociations, phase transitions, and complex microstructures (semi-crystalline, amorphous, crystalline, meso-structured, and multi length-scale). Work including broad understanding of spatial and temporal response to high strain-rates, in situ measurements and, combined experimental/theoretical methods are particularly encouraged.

FOCUS TOPICS
FT1: Turbulence and mixing

This focus topic will present state-of-the-art in validation-quality experiments, large-scale computations and multiscale approaches to study blast waves and their interaction with explosive dispersal of particulate clouds. Compressible Multiphase Turbulence (CMT), in problems of explosive dispersal of particles, is of significant importance in environmental, industrial, and national security applications. CMT poses a grand challenge to our understanding as it combines compressibility, multiphase, and turbulence, often under conditions of extreme pressure and temperature. Presentations describing CMT under extreme conditions of pressure and temperature, and focusing specifically on instabilities, transitions, and turbulent processes in the high-speed multiphase reactive flow are particularly sought.

FT2: Velocimetry diagnostics development

This focus topic centers on recent developments in time-resolved velocimetry as a key diagnostic for shock physics and material dynamics studies. The areas of interest include innovations in Photonic Doppler Velocimetry (PDV), improvements in line- and spatially-resolved velocimetry, extensions of VISAR, and chirped methods, aimed at increasing the range of experiments compatible with velocimetry. Papers sought in this broad area include (but are not limited to) discussions of novel hardware configurations, data interpretation methods, applications, and non-optical motion diagnostics.

FT3: X-ray free electron lasers and materials

The goal of this focus topic is to highlight recent results on application of free electron laser (FEL) x-rays to study materials response to shock compression. The papers are solicited to demonstrate how the unique capabilities of FELs, such as high peak brightness, quasi-monochromaticity and tunable x-ray photon energy over femtosecond timescales, can expand our understanding of the dynamics response of materials, including phase transitions and melting during shock loading and isentropic release. X -ray studies of materials using FELs, reporting simulations, observations, in-situ measurements, and early experiments demonstrating new techniques are particularly sought for presentation at this focus topic.

To see a rough outline of the scientific program click the link below.

Outline of Scientific Program