Publications

Search or filter publications

Filter by type:

Filter by publication type

Filter by year:

to

Results

  • Showing results for:
  • Reset all filters

Search results

  • Conference paper
    Edie DJ, Vorberger J, Rose S, Gericke DOet al., 2013,

    α-particle stopping and electron-ion energy relaxation in highly compressed ICF fuel

    , 7th International Conference on Inertial Fusion Sciences and Applications, Publisher: E D P SCIENCES, ISSN: 2100-014X
  • Conference paper
    Suzuki-Vidal F, Bocchi M, Lebedev SV, Skidmore J, Swadling G, Burdiak G, Harvey-Thompson AJ, de Grouchy P, Bland SN, Hall GN, Khoory E, Pickworth L, Suttle L, Chittenden JP, Krishnan M, Wilson-Elliot K, Madden R, Ciardi A, Frank Aet al., 2013,

    JET-AMBIENT INTERACTION OF A SUPERSONIC, RADIATIVELY-COOLED JET IN LABORATORY EXPERIMENTS

    , ECLA: European Conference on Laboratory Astrophysics, Publisher: E D P SCIENCES, Pages: 127-+, ISSN: 1633-4760
  • Journal article
    Winter RE, Cotton M, Harris EJ, Chapman DJ, Eakins D, McShane Get al., 2012,

    Plate-impact loading of cellular structures formed by selective laser melting

    , WIT Transactions on the Built Environment, Vol: 126, Pages: 145-156, ISSN: 1743-3509

    Studies of the shock loading of porous material have the potential to improve our understanding of factors such as density, crush strength and pore size on energy absorbing capability. Porous components were manufactured using Selective Laser Melting (SLM) in which layers of metal powder are fused together to create a structure specified by an electronic file. Samples have been manufactured in which a lattice is formed by an array of intersecting rods angled at 45 degrees to the surface of a 6 mm thick x ~100 mm diameter disc. The cell size is 1 mm3 and the density is 44.6% of solid. A 100 mm gas gun has been used to impact the porous samples onto solid stainless steel plates. Het-V laser interferometry was used to measure the velocity vs. time profile of the transmitted shock. The experimental results were compared with three dimensional computer predictions. It was found that the simulations reproduced the main features of the experimental record but tended to underestimate the measured velocities, suggesting that the codes were not calculating the energy absorbed by the lattice correctly. Additional calculations were performed with the aim of building a picture of the processes of energy absorption in cellular materials whose structure is varied systematically. These supporting studies suggest a possible explanation for the observed computational/experimental discrepancies. © 2012 British Crown.
  • Journal article
    Hill EG, Rose SJ, 2012,

    Modelling of Silicon in inertial confinement fusion conditions

    , HIGH ENERGY DENSITY PHYSICS, Vol: 8, Pages: 307-312, ISSN: 1574-1818
  • Journal article
    Ampleford DJ, Jennings CA, Lebedev SV, Bland SN, Cuneo ME, Sinars DB, Bott SC, Hall GN, Suzuki-Vidal F, Palmer JBA, Chittenden JPet al., 2012,

    Shock model description of the interaction radiation pulse in nested wire array z-pinches

    , PHYSICS OF PLASMAS, Vol: 19, ISSN: 1070-664X
  • Journal article
    Ampleford DJ, Bland SN, Cuneo ME, Lebedev SV, Sinars DB, Jennings CA, Waisman EM, Vesey RA, Hall GN, Suzuki-Vidal F, Chittenden JP, Bott SCet al., 2012,

    Demonstration of Radiation Pulse-Shaping Capabilities Using Nested Conical Wire-Array <i>Z</i>-Pinches

    , IEEE TRANSACTIONS ON PLASMA SCIENCE, Vol: 40, Pages: 3334-3346, ISSN: 0093-3813
  • Journal article
    Wilson LA, Tallents GJ, Pasley J, Whittaker DS, Rose SJ, Guilbaud O, Cassou K, Kazamias S, Daboussi S, Pittman M, Delmas O, Demailly J, Neveu O, Ros Det al., 2012,

    Energy transport in short-pulse-laser-heated targets measured using extreme ultraviolet laser backlighting

    , PHYSICAL REVIEW E, Vol: 86, ISSN: 1539-3755
  • Journal article
    Hill EG, Rose SJ, 2012,

    Thomson scattering in short pulse laser experiments

    , PHYSICS OF PLASMAS, Vol: 19, ISSN: 1070-664X
  • Journal article
    Scott RHH, Beaucourt C, Schlenvoigt H-P, Markey K, Lancaster KL, Ridgers CP, Brenner CM, Pasley J, Gray RJ, Musgrave IO, Robinson APL, Li K, Notley MM, Davies JR, Baton SD, Santos JJ, Feugeas J-L, Nicolai P, Malka G, Tikhonchuk VT, McKenna P, Neely D, Rose SJ, Norreys PAet al., 2012,

    Controlling Fast-Electron-Beam Divergence Using Two Laser Pulses

    , PHYSICAL REVIEW LETTERS, Vol: 109, ISSN: 0031-9007
  • Journal article
    Crowley BJB, Bingham R, Evans RG, Gericke DO, Landen OL, Murphy CD, Norreys PA, Rose SJ, Tschentscher T, Wang CH-T, Wark JS, Gregori Get al., 2012,

    Testing quantum mechanics in non-Minkowski space-time with high power lasers and 4th generation light sources

    , SCIENTIFIC REPORTS, Vol: 2, ISSN: 2045-2322
  • Journal article
    Scott RHH, Perez F, Santos JJ, Ridgers CP, Davies JR, Lancaster KL, Baton SD, Nicolai P, Trines RMGM, Bell AR, Hulin S, Tzoufras M, Rose SJ, Norreys PAet al., 2012,

    A study of fast electron energy transport in relativistically intense laser-plasma interactions with large density scalelengths

    , PHYSICS OF PLASMAS, Vol: 19, ISSN: 1070-664X
  • Journal article
    Suzuki-Vidal F, Lebedev SV, Bocchi M, Krishnan M, Swadling G, Burdiak G, Bland SN, de Grouchy P, Hall GN, Harvey-Thompson AJ, Khoory E, Pickworth L, Skidmore J, Chittenden JP, Wilson-Elliot K, Madden R, Ciardi Aet al., 2012,

    Experimental study of shock waves from the interaction of a supersonic plasma jet with an ambient gas

    , SHOCK WAVES, Vol: 22, Pages: 249-251, ISSN: 0938-1287
  • Journal article
    Harvey-Thompson AJ, Lebedev SV, Patankar S, Bland SN, Burdiak G, Chittenden JP, Colaitis A, De Grouchy P, Doyle HW, Hall GN, Khoory E, Hohenberger M, Pickworth L, Suzuki-Vidal F, Smith RA, Skidmore J, Suttle L, Swadling GFet al., 2012,

    Optical Thomson Scattering Measurements of Plasma Parameters in the Ablation Stage of Wire Array Z Pinches

    , Physical Review Letters, Vol: 108, Pages: 145002-1-145002-5
  • Conference paper
    Chapman D, Eakins D, Williamson D, Proud Wet al., 2012,

    Index of refraction measurements and window corrections for PMMA under shock compression

    , Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, Publisher: American Institute of Physics, Pages: 442-445

    Symmetric plate impact experiments were performed to investigate the change in the refractive index of Polymethylmethacrylate (PMMA) under shock loading. Flyer and target geometries allowed the measurement of shock velocity, particle velocity, and refractive index in the shocked state, using a Het-V system (1550 nm). The change in refractive index of PMMA as a function of density is generally considered to be well described by the Gladstone-Dale relationship, meaning that the "apparent" velocity measured by a laser velocity interferometer is the "true" velocity, and hence there is no window correction. The results presented here demonstrate that the behaviour of PMMA deviates from an ideal Gladstone-Dale description, requiring a small velocity correction of order 1% at peak stresses up to 1.9 GPa. These results are consistent with literature values measured using a wavelength of 632.8 nm by [1].
  • Conference paper
    Eakins D, Chapman D, 2012,

    The influence of particle morphology on the dynamic densification of metal powders

    , Shock Compression of Condensed Matter, Pages: 1491-1494

    Powders are well known for their dispersive properties, which derive from the many dissipative processes that occur during densification. While numerous studies have been devoted to understand these processes over a wide range of initial densities, the influence of particle morphology has been for the large part overlooked. In this paper, we discuss a new research campaign at the Institute of Shock Physics, to systematically investigate the role of starting configuration on the dynamic densification of metal powders. Multi-target gun loading experiments have been performed on both stainless steel and copper powders of equiaxed- and fiber-shaped morphology. Frequency-shifted PDV was employed to measure the structure and velocity of the dynamic densification wave, to yield the crush strength of the various powders. We find that while the crush strength for the stainless steel powders is reasonably described by a modified Wu-Jing model, this model underpredicts the densification stress for the copper powder.
  • Conference paper
    Collinson M, Chapman D, Burchell M, Williamson D, Eakins Det al., 2012,

    Towards the role of interfacial shear in shock-induced intermetallic reactions

    , Shock Compression of Condensed Matter, Publisher: American Institute of Physics (AIP), Pages: 327-330, ISSN: 1551-7616

    Shock-induced intermetallic reactions have previously been shown to occur on a nanosecond timescale, with the role of mass mixing processes driven by inter-facial shear at material interfaces suggested as a possible explanation. Experimental setups allowing the role of friction on these mechanisms to be considered are presented. Simulations show that the use of an impedance mismatch, shock driven experimental setup should allow sliding velocities of 50 - 100 m s⁻¹ to be attained with mechanical mixing the main reaction mechanism. A second setup utilising the oblique impact of small spherical projectiles upon a target plate is predicted to enable much higher sliding velocities of up to 2 Km s⁻¹ to be attained with thermally driven diffusion reaction mechanisms becoming dominant.
  • Conference paper
    Jones D, Eakins DE, Hazell P, Chapman D, Appleby-Thomas Get al., 2012,

    Development of the gas gun driven expanding cylinder technique

    , Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, Publisher: American Institute of Physics (AIP), Pages: 1141-1144, ISSN: 1551-7616

    Using a gas gun to create rapid expansion in metal cylinders to investigate fracture and fragmentaion has been commonplace for the last several decades. Results from such experiments alongside data from explosive and electromagnetic expansion techniques have produced several models for fragment size and mass distributions. We present a new geometry for expansion that can be applied to cylinders at elevated & reduced temperatures whilst keeping the drive mechanism constant, enabling us in the future to experiment over a range of sample temperatures at a fixed strain rate and loading path. This new geometry has been investigated through a series of gas gun experiments employing X-ray radiography and AUTODYN simulations to reveal the deformation and failure behaviour within the cylinder.
  • Journal article
    Harvey-Thompson AJ, Lebedev SV, Patankar S, Bland SN, Burdiak G, Chittenden JP, Colaitis A, De Grouchy P, Hall GN, Khoory E, Hohenberger M, Pickworth L, Suzuki-Vidal F, Smith RA, Skidmore J, Suttle L, Swadling GFet al., 2012,

    Optical Thomson scattering measurements of cylindrical wire array parameters

    , Physics of Plasmas, Vol: 19, Pages: 056303-1-056303-10, ISSN: 1070-664X
  • Journal article
    Eakins D, Chapman D, 2012,

    The influence of particle morphology on the dynamic densification of metal powders

    , AIP Conference Proceedings, Vol: 1426, Pages: 1491-1494, ISSN: 1551-7616

    Powders are well known for their dispersive properties, which derive from the many dissipative processes that occur during densification. While numerous studies have been devoted to understand these processes over a wide range of initial densities, the influence of particle morphology has been for the large part overlooked. In this paper, we discuss a new research campaign at the Institute of Shock Physics, to systematically investigate the role of starting configuration on the dynamic densification of metal powders. Multi-target gun loading experiments have been performed on both stainless steel and copper powders of equiaxed-and fiber-shaped morphology. Frequency-shifted PDV was employed to measure the structure and velocity of the dynamic densification wave, to yield the crush strength of the various powders. We find that while the crush strength for the stainless steel powders is reasonably described by a modifiedWu-Jing model, this model underpredicts the densification stress for the copper powder.
  • Journal article
    Chapman D, Eakins D, Williamson D, Proud Wet al., 2012,

    Index of refraction measurements and window corrections for PMMA under shock compression

    , AIP Conference Proceedings, Vol: 1426, Pages: 442-445, ISSN: 1551-7616
  • Journal article
    Suzuki-Vidal F, Bocchi M, Lebedev SV, Swadling GF, Burdiak G, Bland SN, de Grouchy P, Hall GN, Harvey-Thompson AJ, Khoory E, Patankar S, Pickworth L, Skidmore J, Smith R, Chittenden JP, Krishnan M, Madden RE, Wilson-Elliot K, Ciardi A, Frank Aet al., 2012,

    Interaction of a supersonic, radiatively cooled plasma jet with an ambient medium

    , PHYSICS OF PLASMAS, Vol: 19, ISSN: 1070-664X
  • Journal article
    Neal WD, Chapman DJ, Proud WG, 2012,

    Shock-wave stability in quasi-mono-disperse granular materials

    , EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, Vol: 57, ISSN: 1286-0042
  • Conference paper
    Drodge DR, Williamson DM, Palmer SJP, Proud WGet al., 2012,

    STRAIN-RATE MASTER CURVES FOR A PBX AND BINDER

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X
  • Conference paper
    Cross DLA, Proud WG, 2012,

    SCALED LONG ROD PERFORATION EXPERIMENTS USING MULTIPLE DIAGNOSTICS: MILD STEEL AGAINST ROLLED HOMOGENEOUS ARMOUR

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X
  • Conference paper
    Swift DC, Hawreliak JA, Braun D, Kritcher A, Glenzer S, Collins G, Rothman SD, Chapman D, Rose Set al., 2012,

    GIGABAR MATERIAL PROPERTIES EXPERIMENTS ON NIF AND OMEGA

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X
  • Conference paper
    Proud WG, Cross DLA, 2012,

    SCALED LONG ROD PENETRATION EXPERIMENTS: TUNGSTEN AGAINST ROLLED HOMOGENEOUS ARMOUR

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X
  • Conference paper
    Suzuki-Vidal F, Lebedev SV, Krishnan M, Bocchi M, Skidmore J, Swadling G, Harvey-Thompson AJ, Burdiak G, de Grouchy P, Pickworth L, Suttle L, Bland SN, Chittenden JP, Hall GN, Khoory E, Wilson-Elliot K, Madden RE, Ciardi A, Frank Aet al., 2012,

    Laboratory astrophysics experiments studying hydrodynamic and magnetically-driven plasma jets

    , 14th Latin American Workshop on Plasma Physics (LAWPP), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
  • Conference paper
    Miljkovic K, Collins GS, Chapman DJ, Patel MR, Proud WGet al., 2012,

    HIGH-VELOCITY IMPACTS IN POROUS SOLAR SYSTEM MATERIALS

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X
  • Conference paper
    De'Ath JM, Proud WG, Millett JCF, Appleby-Thomas GJet al., 2012,

    PHASE CHANGE IN 080M40 PLAIN CARBON STEEL

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X
  • Conference paper
    Neal WD, Chapman DJ, Proud WG, 2012,

    THE EFFECT OF PARTICLE SIZE ON THE SHOCK COMPACTION OF A QUASI-MONO-DISPERSE BRITTLE GRANULAR MATERIAL

    , 7th Biennial Conference of the American-Physical-Society-Topical-Group on Shock Compression of Condensed Matter, Publisher: AMER INST PHYSICS, ISSN: 0094-243X

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://www.imperial.ac.uk:80/respub/WEB-INF/jsp/search-t4-html.jsp Request URI: /respub/WEB-INF/jsp/search-t4-html.jsp Query String: id=280&limit=30&resgrpMemberPubs=true&resgrpMemberPubs=true&page=9&respub-action=search.html Current Millis: 1716066326951 Current Time: Sat May 18 22:05:26 BST 2024