Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Nancy A. Winfree"'
Publikováno v:
International Journal of Impact Engineering. 31:509-521
The compressive behavior of a polystyrene foam was investigated at strain rates from 0.001 to 950/s. A hydraulically driven test machine was used for the quasi-static tests, and a modified split Hopkinson pressure bar (SHPB) was utilized for the dyna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e218ce21a763e518afd1b44e15c82d4
https://doi.org/10.1016/j.ijimpeng.2004.02.003
https://doi.org/10.1016/j.ijimpeng.2004.02.003
Publikováno v:
Experimental Mechanics. 42:65-73
The dynamic compressive stress-strain behavior of a rigid polyurethane foam with four values of density (78, 154, 299, and 445 kg/m3) has been determined in the strain-rate range of 1000–5000 s−1. A pulse shaping technique was used with a split H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35200691a565d501f5903117d6e86e70
https://doi.org/10.1007/bf02411053
https://doi.org/10.1007/bf02411053
Autor:
Dennis Grady, Nancy A. Winfree
Publikováno v:
International Journal of Impact Engineering. 26:249-262
The high-velocity impact of a projectile onto a structure results in the creation and energetic expulsion of fragments of the interacting materials. The nature of this fragment debris is of concern in certain applications. Although more broadly appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e1107a923138473ae84e8a423de162f
https://doi.org/10.1016/s0734-743x(01)00085-9
https://doi.org/10.1016/s0734-743x(01)00085-9
Autor:
Daniel E. Carroll, Thomas K. Bergstresser, Nancy A. Winfree, Lalit C. Chhabildas, Tom F. Thornhill, William D. Reinhart
Publikováno v:
International Journal of Impact Engineering. 26:625-637
Results of an experimental series performed utilizing a three-stage gun to obtain precise material property equation of state (EOS) data for a titanium alloy (Ti6-Al-4V) at extreme pressure states that are not currently attainable using conventional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ba16eccd09317d48ba443e6918f1bec
https://doi.org/10.1016/s0734-743x(01)00124-5
https://doi.org/10.1016/s0734-743x(01)00124-5
Publikováno v:
International Journal of Solids and Structures. 38:8989-8998
The compressive stress–strain behavior of a NiTi shape memory alloy (Nitinol SE508) has been determined over strain rates of 10−3–7.5×102 s−1. A hydraulically driven load frame (Material test system, MTS 810) was used to conduct the quasi-st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e96ef6547763cf6e36ac30bccd1b679f
https://doi.org/10.1016/s0020-7683(01)00165-2
https://doi.org/10.1016/s0020-7683(01)00165-2
Publikováno v:
Le Journal de Physique IV. 10:Pr9-15
A phenomenological continuum model for computational use has been developed to describe large amplitude transient wave propagation in heterogeneous multi-component materials. A key feature of the model is a physics-based treatment of the continuum re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec149c22c6c76e29604820f39b97bf4
https://doi.org/10.1051/jp4:2000903
https://doi.org/10.1051/jp4:2000903
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 55:206-219
Pigment abundances of the oxygenic and anoxygenic photoautotrophic communities from sediments and the water column in Lake Okeechobee, Florida, were estimated using reverse-phase high-performance liquid chromatographic (RP-HPLC) and photodiode array
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3045b3b385c16830ac6c1e0723ee53ef
https://doi.org/10.1139/f97-239
https://doi.org/10.1139/f97-239
Publikováno v:
Mathematics and Mechanics of Solids. 2:99-116
Some experiments suggest the presence of a sharp interface between comminuted and uncomminuted regimes in a ceramic subject to impact by a penetrator. This in turn suggests that one might model the associated dynamical process with the help of recent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::651fb9e00e7857542188e36238289eea
https://doi.org/10.1177/108128659700200201
https://doi.org/10.1177/108128659700200201
Autor:
Lalit C. Chhabildas, Gerald Irwin Kerley, Nancy A. Winfree, D. E. Carroll, William D. Reinhart
Publikováno v:
AIP Conference Proceedings.
Experiments were conducted to acquire Hugoniot data for Ti6‐Al‐4V at compressive stresses up to 250 GPa for use as a standard material on the three‐stage gun at Sandia. Ti‐6Al‐4V was chosen over several other standards because in previous w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0867e219f5ffba7f1238adde92648ca
https://doi.org/10.1063/1.1483486
https://doi.org/10.1063/1.1483486
Autor:
Nancy A. Winfree, Lalit C. Chhabildas, Gerald Irwin Kerley, Daniel K. Carroll, William D. Reinhart
Publikováno v:
AIP Conference Proceedings.
In three‐stage gun experimental situations, a flier‐plate can be launched using graded‐density impact of stationary target plates. In such cases, the launch plate’s velocity and state can be obtained from highly resolved computational simulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42e7930a030b73c67509083d1faf24f4
https://doi.org/10.1063/1.1483541
https://doi.org/10.1063/1.1483541