Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Lee W. Kohlman"'
Publikováno v:
AIAA Scitech 2019 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9d59ebcc602383460d1c7049c056dc
https://doi.org/10.2514/6.2019-1583.c1
https://doi.org/10.2514/6.2019-1583.c1
Publikováno v:
AIAA Scitech 2019 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17313094cd0275a77754b8bf3394ae91
https://doi.org/10.2514/6.2019-0528
https://doi.org/10.2514/6.2019-0528
Publikováno v:
Journal of Aerospace Engineering. 31
To improve the prediction of the response of braided composite structures, a subcell approach is under development. This method has shown successes in predicting the moduli of braided compo...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef9bf149a9c3d04a0c1d73289900fb22
https://doi.org/10.1061/(asce)as.1943-5525.0000872
https://doi.org/10.1061/(asce)as.1943-5525.0000872
Autor:
Bryan Fraser, David Koci, David Matten, Cheryl L. Bowman, Phillip Schrum, Gerald V. Brown, Jason Hartwig, Keith Hunker, Lee W. Kohlman
Publikováno v:
2018 AIAA/IEEE Electric Aircraft Technologies Symposium.
This paper presents the design, development, operation, and test capabilities of a proposed superconducting coil testbed to measure AC losses at the NASA Glenn Research Center. Superconducting AC losses are important in the design of electric stators
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dd5096987770c65ba3af394c29d301d
https://doi.org/10.2514/6.2018-5028
https://doi.org/10.2514/6.2018-5028
Autor:
Michael D. Patterson, Lee W. Kohlman
Publikováno v:
2018 Aviation Technology, Integration, and Operations Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0883c01fbe99eb771b8404fc821ff76e
https://doi.org/10.2514/6.2018-3677
https://doi.org/10.2514/6.2018-3677
Publikováno v:
2018 Aviation Technology, Integration, and Operations Conference.
As electric powertrain and propulsion-airframe integration technologies advance, airborne electric propulsion concepts appear to be on the cusp of disrupting or transforming aviation markets. One of the many challenges to this transformation lies wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1ced1da3acba88a76fbf97a39e0f0a1
https://doi.org/10.2514/6.2018-3357
https://doi.org/10.2514/6.2018-3357
Publikováno v:
2018 AIAA Aerospace Sciences Meeting.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f9fa4964e89a13209ef3a15f44a99a5
https://doi.org/10.2514/6.2018-2026
https://doi.org/10.2514/6.2018-2026
Publikováno v:
Journal of Aerospace Engineering. 27:473-483
This paper is concerned with elastic behavior of a triaxial braided composite by using a three-dimensional analytical model and mesoscale finite-element (FE) analysis, in conjunction with experimental observations. The analytical method and FEM take
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24bcf0e8715fd6e8db91b92d34e40670
https://doi.org/10.1061/(asce)as.1943-5525.0000369
https://doi.org/10.1061/(asce)as.1943-5525.0000369
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 58:36-46
In this study, a meso-scale finite element (FE) model of a triaxial braided composite is generated based on realistic unit cell dimensions and fiber bundle geometry parameters. Micromechanical finite element models were developed to predict the elast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dea18b8d18189977a8aaf155f9dbfa8a
https://doi.org/10.1016/j.compositesa.2013.11.009
https://doi.org/10.1016/j.compositesa.2013.11.009
Autor:
Wieslaw K. Binienda, Xavier Poulain, Robert K. Goldberg, Gary D. Roberts, A. Amine Benzerga, Lee W. Kohlman
Publikováno v:
International Journal of Solids and Structures. 50(11-12):1869-1878
Three methods for the determination of the large-strain behavior of ductile polymers are compared in both tension and compression. Each method relies on some (non-contact) measurement of the strain and some approximations in the calculation of stress
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bd220745a2a0ae046dbfa7e376db6c4