Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Darcie Dennis-Koller"'
Autor:
Aaron C. Koskelo, Elizabeth Fortin, Juan P. Escobedo, Xianghui Xiao, Brian M. Patterson, Ellen K. Cerreta, Pedro Peralta, Sheng-Nian Luo, Darrin D. Byler, A. D. Brown, Q. Pham, Darcie Dennis-Koller
Publikováno v:
JOM. 69:198-206
Three-dimensional x-ray tomography (XRT) provides a nondestructive technique to characterize the size, shape, and location of damage in dynamically loaded metals. A shape-fitting method comprising the inertia tensors of individual damage sites was ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d545fdcffe82fa9b57d30ee6497d966e
https://doi.org/10.1007/s11837-016-2178-5
https://doi.org/10.1007/s11837-016-2178-5
Publikováno v:
JOM. 66:156-164
The effect of crystalline structure on intergranular failure during shock loading has been examined. A suite of dynamic tensile experiments, using plate-impact testing, were conducted on copper (face-centered cubic) and tantalum (body-centered cubic)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68bfbebc81880c5eaa492b46bf49166c
https://doi.org/10.1007/s11837-013-0798-6
https://doi.org/10.1007/s11837-013-0798-6
Autor:
Juan P. Escobedo, John F. Bingert, Ellen K. Cerreta, Ricardo A. Lebensohn, Darcie Dennis-Koller, Curt A. Bronkhorst
Publikováno v:
Acta Materialia. 61:6918-6932
Most structural materials are polycrystalline aggregates whose constituent crystals are irregular in shape, have anisotropic mechanical properties and contain a variety of defects, resulting in very complicated damage evolution. Failure models of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9939441d5e04154d2306e7ab860b5dc
https://doi.org/10.1016/j.actamat.2013.08.004
https://doi.org/10.1016/j.actamat.2013.08.004
Publikováno v:
International Journal of Plasticity. 44:129-146
The goal of this work is to formulate a constitutive model for the deformation of metallic single crystals over a wide range of strain rates, which is integral to computing reliable stress states of metallic polycrystals under shock loading. An elast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dba4b4a905ad2c8e5e9338d699938b6f
https://doi.org/10.1016/j.ijplas.2012.12.006
https://doi.org/10.1016/j.ijplas.2012.12.006
Autor:
Ellen K. Cerreta, Juan P. Escobedo, Darcie Dennis-Koller, Curt A. Bronkhorst, Carl P. Trujillo
Publikováno v:
Philosophical Magazine. 93:833-846
The role of crystallographic orientation on damage evolution in ductile metals during shock loading has been investigated. By utilizing large-grained copper specimens, it has been shown that the development of intragranular damage, in the form of voi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::301615e45572324a32fc6062f526d590
https://doi.org/10.1080/14786435.2012.734638
https://doi.org/10.1080/14786435.2012.734638
Publikováno v:
Microscopy and Microanalysis. 18:390-398
Scientific digital imaging in three dimensions such as when using X-ray computed tomography offers a variety of ways to obtain, filter, and quantify data that can produce vastly different results. These opportunities, performed during image acquisiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25b6cb0dd2a66024313ef671c3456623
https://doi.org/10.1017/s1431927611012554
https://doi.org/10.1017/s1431927611012554
The attenuation properties of an impact initiated PBX-9501 explosive through several thicknesses of CeO2 powder is investigated. The CeO2 is at an initial porous density of 4.0 g/cm3 , roughly 55 % of theoretical maximum density. Measurements of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a6e1749a05c54cb98c17d3e51c13701
https://doi.org/10.2172/1210219
https://doi.org/10.2172/1210219
Autor:
George T. Gray, Dan J. Thoma, Francis L. Addessio, Deniece R Korzekwa, Carl M. Cady, Curt A. Bronkhorst, A.M. Kelly, M. F. Lopez, Ellen K. Cerreta, Mark W. Schraad, Robert Hixson, Rodney J. McCabe, Paul J. Maudlin, S.R. Chen, Darcie Dennis-Koller, Darby J. Luscher, Pallas A. Papin, T. A. Mason, Carl P. Trujillo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef10e68974a1271cf6ef357eec4fd909
https://doi.org/10.2172/1057613
https://doi.org/10.2172/1057613
Autor:
Darcie Dennis-Koller, Juan P. Escobedo, Carl P. Trujillo, Curt A. Bronkhorst, Ellen K. Cerreta
Publikováno v:
Dynamic Behavior of Materials, Volume 1 ISBN: 9781461442370
This work examined the effect of shock loading kinetics on the early stages of damage evolution in Cu samples. The tensile loading characteristics were tailored by controlling the geometry and material used for the flyer plates in the plate impact ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9d80fd05d1607f3d9a36ba75e45927c
https://doi.org/10.1007/978-1-4614-4238-7_44
https://doi.org/10.1007/978-1-4614-4238-7_44
Publikováno v:
EPJ Web of Conferences, Vol 26, p 02011 (2012)
Initial configuration, which can include particle size and shape, initial density, and void location, can affect the measured compaction responses of initially porous materials. In this work, both the low- and high-strain-rate compaction response of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34e0e90121c5d4bbd1cf646a211d2eab
https://doaj.org/article/394cdec3410844f8930c6bde23078228
https://doaj.org/article/394cdec3410844f8930c6bde23078228