Search Results - "Warren, T. L."

Perforation of AA5083-H116 aluminium plates with conical-nose steel projectiles – Calculations by Børvik, T., Forrestal, M.J., Hopperstad, O.S., Warren, T.L., Langseth, M.

“…The use of aluminium alloys in lightweight protective structures is increasing. Even so, the number of experimental and computational investigations that give…”
Get full text

Approximation of Strain Rate Parameters for Use with Eulerian Viscoplastic Constitutive Models Based on True Cauchy Stresses and True Strains Obtained at Nominal Strain Rates by Warren, T. L.

“…In several previous studies, strain rate sensitivity parameters are given for universal stress strain curves for true Cauchy stress and true (logarithmic)…”
Get full text

Penetration into low-strength (23 MPa) concrete: target characterization and simulations by Warren, T.L., Fossum, A.F., Frew, D.J.

“…A combined experimental, analytical, and computational research and development program investigates the penetration of steel projectiles into low-strength…”
Get full text

Effect of Target Diameter on the Perforation of Aluminum Plates by Rigid Ogive-Nose Rod Projectiles by Forrestal, M. J., Warren, T. L.

“…In a previous paper, we present ballistic data and a cylindrical, cavity-expansion model that predicts the ballistic limit and residual velocities for the…”
Get full text

Solution for the Dynamic Elastically Compressible Power-Law Strain Hardening Cylindrical Cavity-Expansion Problem by Warren, T. L., Johnsen, J., Kristoffersen, M., Børvik, T.

“…A closed form analytical solution for both the quasi-static or dynamic strain hardening cylindrical cavity-expansion (CCE) problems requires the plastic region…”
Get full text

Perforation of 7075-T651 Aluminum Armor Plates with 7.62 mm APM2 Bullets by Forrestal, M. J., Børvik, T., Warren, T. L.

“…We conducted an experimental and analytical study to better understand the mechanisms and dominant parameters for 7.62 mm APM2 bullets that perforate 7075-T651…”
Get full text

Ballistic-Limit Velocities for 7.62 mm APM2 Bullets and Aluminum Alloy Armor Plates by Forrestal, M. J., Warren, T. L., Holmen, J. K.

“…In a previous paper, we presented a scaling law for the ballistic-limit velocity for the 7.62 mm APM2 bullet and aluminum armor plates. This scaling law…”
Get full text

Correction to: Perforation of Steel Plates with 7.62 mm APM2 Bullets by Forrestal, M. J., Warren, T. L.

Get full text

Perforation of Steel Plates with 7.62 mm APM2 Bullets by Forrestal, M. J., Warren, T. L.

“…We present cylindrical cavity-expansion perforation equations for the ballistic-limit and residual velocities for 7.62 mm APM2 bullets that perforate steel…”
Get full text

A Conical Striker Bar to Obtain Constant True Strain Rate for Kolsky Bar Experiments by Forrestal, M. J., Warren, T. L.

“…Many split Hopkinson pressure bar (SHPB) or Kolsky bar techniques use pulse shaping methods to obtain constant engineering strain rate for the specimen…”
Get full text

Effects of strain hardening and strain-rate sensitivity on the penetration of aluminum targets with spherical-nosed rods by Warren, Thomas L., Forrestal, Michael J.

“…We present penetration equations for rigid, spherical-nosed rods that penetrate 6061-T651 aluminum targets. The penetration models use the spherical…”
Get full text

Perforation of 5083-H116 Aluminum Armor Plates with Ogive-Nose Rods and 7.62 mm APM2 Bullets by Børvik, T., Forrestal, M. J., Warren, T. L.

“…We conducted an experimental and analytical study to understand the mechanisms and dominant parameters for ogive-nose rods and 7.62 mm APM2 bullets that…”
Get full text

Perforation of aluminum plates with ogive-nose steel rods at normal and oblique impacts by Piekutowski, A.J., Forrestal, M.J., Poormon, K.L., Warren, T.L.

“…Perforation experiments were conducted with 26.3 mm thick, 6061-T651 aluminum plates and 12.9 mm diameter, 88.9 mm long, 4340 R c = 44 ogive-nose steel rods…”
Get full text

Comments on the Effect of Radial Inertia in the Kolsky Bar Test for an Incompressible Material by Warren, T. L., Forrestal, M. J.

“…We present equations that show the effect of radial inertia for incompressible samples that are in dynamic force equilibrium during the split Hopkinson…”
Get full text

APC Stimulated by CpG Oligodeoxynucleotide Enhance Activation of MHC Class I-Restricted T Cells by Warren, Thomas L, Bhatia, Sudershan K, Acosta, Anna M, Dahle, Christopher E, Ratliff, Timothy L, Krieg, Arthur M, Weiner, George J

“…Oligonucleotides containing unmethylated CpG motifs (cytosine-phosphorothioate-guanine oligodeoxynucleotide (CpG ODN)) are potent immunostimulatory agents…”
Get full text

Applications of low-cost environmental monitoring systems for fine-scale abiotic measurements in forest ecology by Cannon, JB, Warren, LT, Ohlson, GC, Hiers, JK, Shrestha, M, Mitra, C, Hill, EM, Bradfield, SJ, Ocheltree, TW

“…•Important ecological phenomena are driven by fine scale abiotic gradients.•Commercial instrumentation may be cost prohibitive to quantify microclimate.•We…”
Get full text

Simulations of the penetration of 6061-T6511 aluminum targets by spherical-nosed VAR 4340 steel projectiles by Warren, Thomas L., Tabbara, Mazen R.

“…In certain penetration events it is proposed that the primary mode of deformation of the target can be approximated by known analytical expressions. In the…”
Get full text

The influence of local habitat and landscape composition on cavity-nesting birds in a forested mosaic by Warren, Tara L., Betts, Matthew G., Diamond, Antony W., Forbes, Graham J.

“…Forest management influences both stand and landscape structure. While research exists on stand-scale habitat relationships for cavity-nesting birds, there are…”
Get full text

Penetration of 6061-T6511 aluminum targets by ogive-nose steel projectiles with striking velocities between 0.5 and 3.0 km/s by Piekutowski, Andrew J., Forrestal, Michael J., Poormon, Kevin L., Warren, Thomas L.

“…We performed a series of depth-of-penetration experiments using 7.11-mm-diameter, 71.12-mm-long, ogive-nose steel projectiles and 254-mm-diameter, 6061-T6511…”
Get full text

Uses of granulocyte-macrophage colony-stimulating factor in vaccine development by Warren, Thomas L, Weiner, George J

“…Granulocyte-macrophage colony-stimulating factor (GM-CSF) is a potent cytokine capable of inducing differentiation, proliferation, and activation of a variety…”
Get full text