Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Justin D. Littell"'
Autor:
Ramesh B. Malla, Justin D. Littell, Sudarshan Krishnan, Landolf Rhode-Barbarigos, Nipesh Pradhananga, Seung Jae Lee
This collection contains 98 peer-reviewed papers on various multidisciplinary, technological topics related to engineering for extreme environments presented at the 19th Biennial International Conference on Engineering, Science, Construction, and Ope
Autor:
Kevin L. Koudela, Charles E. Bakis, Justin D. Littell, J. Michael Pereira, Charles R. Ruggeri, Rudy T. Haluza
Publikováno v:
American Society for Composites 2020.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec2cb1200635656f6ee35b74e78c939a
https://doi.org/10.12783/asc35/34898
https://doi.org/10.12783/asc35/34898
Autor:
Justin D. Littell
Publikováno v:
AIAA Propulsion and Energy 2019 Forum.
The burgeoning electric Vertical Take-off and Landing (eVTOL) vehicle industry has generated a significant level of enthusiasm amongst aviation designers, manufacturers and researchers. This industry is determined to change the urban transportation p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89676582bb6f640cc5a26297199a0334
https://doi.org/10.2514/6.2019-4504
https://doi.org/10.2514/6.2019-4504
Publikováno v:
Journal of the American Helicopter Society. 60:1-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::726c9b14fc8002903aa56f3825448e08
https://doi.org/10.4050/jahs.60.022004
https://doi.org/10.4050/jahs.60.022004
Autor:
Justin D. Littell
Publikováno v:
International Digital Imaging Correlation Society ISBN: 9783319514383
Since the summer of 2013, five full-scale crash tests have been conducted at NASA Langley Research Center’s (LaRC) Landing and Impact Research Facility (LandIR) on deformable airframes for the evaluation of a variety of crashworthy concepts. Two te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b34096bc388c6bb0cf94710a1eb270d9
https://doi.org/10.1007/978-3-319-51439-0_56
https://doi.org/10.1007/978-3-319-51439-0_56
Autor:
Robert K. Goldberg, Wieslaw K. Binienda, Justin D. Littell, Gary D. Roberts, William A. Arnold
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 40:1846-1862
The reliability of impact simulations for aircraft components made with triaxial braided carbon fiber composites is currently limited by inadequate material property data and lack of validated material models for analysis. Methods to characterize the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2d33d679a4ac03c868184ea559f9aeb
https://doi.org/10.1016/j.compositesa.2009.08.001
https://doi.org/10.1016/j.compositesa.2009.08.001
Publikováno v:
Journal of Aerospace Engineering. 22:310-317
In this paper, a two-dimensional triaxial braided composite model has been studied using the nonlinear explicit finite-element code LSDYNA. The unit cell consists of six subcells and material properties associated with shell element integration point
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bb4027f003b2a7950277eb7ca6a3f7f
https://doi.org/10.1061/(asce)0893-1321(2009)22:3(310)
https://doi.org/10.1061/(asce)0893-1321(2009)22:3(310)
Publikováno v:
Journal of Aerospace Engineering. 22:214-221
A review of astronaut whole body impact tolerance is discussed for land or water landings of the next generation manned space capsule named Orion. LS-DYNA simulations of Orion capsule landings are performed to produce a low, moderate, and high probab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef43d09ecf74ae71dc9c7996f1d6d9c3
https://doi.org/10.1061/(asce)0893-1321(2009)22:3(214)
https://doi.org/10.1061/(asce)0893-1321(2009)22:3(214)
Publikováno v:
Journal of Aerospace Engineering. 22:270-279
Carbon fiber composites utilizing flattened, large tow yarns in woven or braided forms are being used in many aerospace applications. Their complex fiber architecture and large unit cell size present challenges in both understanding deformation proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0a6831db99eee4dd33b560e5cbd8126
https://doi.org/10.1061/(asce)0893-1321(2009)22:3(270)
https://doi.org/10.1061/(asce)0893-1321(2009)22:3(270)
Autor:
Justin D. Littell, Gary D. Roberts, Charles R. Ruggeri, William A. Arnold, Wieslaw K. Binienda, Robert K. Goldberg
Publikováno v:
Journal of Aerospace Engineering. 21:162-173
The next generation aircraft engines are designed to be lighter and stronger than engines currently in use by using carbon fiber composites. In order to certify these engines, ballistic impact tests and computational analyses must be completed, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1de998004bd0290208c869f2ecad15d9
https://doi.org/10.1061/(asce)0893-1321(2008)21:3(162)
https://doi.org/10.1061/(asce)0893-1321(2008)21:3(162)