Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Christopher B. Churchill"'
Publikováno v:
Journal of Heat Transfer. 140
An experimental program is presented of heated tension springs in an external crossflow over a range of laminar Reynolds numbers, spring stretch ratios, and angles of attack. Extensive measurements of the forced convection heat transfer of helical wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d94cdc27243e7ba8c4a32c232b1311d
https://doi.org/10.1115/1.4038338
https://doi.org/10.1115/1.4038338
Publikováno v:
Journal of the Mechanics and Physics of Solids. 63:506-537
While many uniaxial tension experiments of shape memory alloys (SMAs) have been published in the literature, relatively few experimental studies address their behavior in compression or bending, despite the prevalence of this latter deformation mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2b8412f22ce8fc21ef2e366bdefcf3f
https://doi.org/10.1016/j.jmps.2012.12.012
https://doi.org/10.1016/j.jmps.2012.12.012
Autor:
Andrew C. Keefe, Geoffrey P. McKnight, Sloan P. Smith, David W. Shahan, Christopher B. Churchill
Publikováno v:
Science Advances
A novel active structure supports loads while dynamically and continuously changing stiffness by more than 100× in less than 10 ms.
Variable stiffness structures that enable a wide range of efficient load-bearing and dexterous activity are ubiq
Variable stiffness structures that enable a wide range of efficient load-bearing and dexterous activity are ubiq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcb82a1824c21c3a4c55820176565832
https://doi.org/10.1126/sciadv.1500778
https://doi.org/10.1126/sciadv.1500778
Publikováno v:
Experimental Techniques. 34:63-80
T his is the fourth paper in our series, identifying unusual phenomena and providing recommendations for the thermo-mechanical characterization of shape memory alloy (SMA) wire. Part 11 provided basic background of the martensitic transformations bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08f513a1a7dd4c5bce80e3941cef75ae
https://doi.org/10.1111/j.1747-1567.2010.00619.x
https://doi.org/10.1111/j.1747-1567.2010.00619.x
Publikováno v:
Experimental Techniques. 33:70-78
This is the third paper in our series to identify unusual phenomena and to provide recommendations for the thermo-mechanical characterization of shape memory alloy (SMA) wire. Part 1 provided some basic background of the martensitic transformations r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8f90b5fd708ee04515c55c37352e6e0
https://doi.org/10.1111/j.1747-1567.2009.00558.x
https://doi.org/10.1111/j.1747-1567.2009.00558.x
Publikováno v:
Experimental Techniques. 33:51-62
This is the second in a series of articles to introduce phenomena and experimental subtleties that can lead to difficulties in testing shape memory alloy (SMA) wire. Our aims were to acquaint uninitiated engineers with SMA testing and to highlight pi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d93dc149712cd8d50f497e210e24889
https://doi.org/10.1111/j.1747-1567.2008.00460.x
https://doi.org/10.1111/j.1747-1567.2008.00460.x
Publikováno v:
Experimental Techniques. 32:55-62
Editor’s Note: This ET feature series is intended as an introduction to this exciting area of experimental mechanics. It aims to increase awareness of active materials and to promote their consistent characterization by disseminating best practices
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8b5b70d7b8e9e116292b64a1937aa81
https://doi.org/10.1111/j.1747-1567.2008.00410.x
https://doi.org/10.1111/j.1747-1567.2008.00410.x
Publikováno v:
Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting.
Shape memory alloy (SMA) actuator wires promise substantial size, weight, and potential cost advantages over their solenoid and electric motor counterparts. Designing actuators which fully realize these advantages is hampered by a limited understandi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62087a0cd296f0f4cf2fb3a4400520c0
https://doi.org/10.1115/smasis2013-3337
https://doi.org/10.1115/smasis2013-3337
Autor:
Christopher B. Churchill
Publikováno v:
SPIE Proceedings.
Shape memory alloys (SMAs) remain one of the most commercially viable active materials, thanks to a high specific work and the wide availability of high quality material. Still, significant challenges remain in predicting the degradation of SMA actua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a64503d5fd68a8a3b88db2fa1b2beb
https://doi.org/10.1117/12.2012178
https://doi.org/10.1117/12.2012178
Autor:
J. M. Brown, John A. Shaw, Christopher B. Churchill, Peter Maxwell Sarosi, Nilesh D. Mankame, Guillermo A. Herrera, Jan H. Aase, Geoffrey P. McKnight, Andrew C. Keefe, Nancy L. Johnson, Alan L. Browne, Patrick Benedict Usoro, Paul W. Alexander
Publikováno v:
Industrial and Commercial Applications of Smart Structures Technologies 2012.
Over 60% of energy that is generated is lost as waste heat with close to 90% of this waste heat being classified as low grade being at temperatures less than 200°C. Many technologies such as thermoelectrics have been proposed as means for harvesting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d1a70883a60083eb9531ac524309a8b
https://doi.org/10.1117/12.913275
https://doi.org/10.1117/12.913275