Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Jay R. Spingarn"'
Publikováno v:
Journal of Intelligent Material Systems and Structures. 9:788-799
A method to determine process-induced residual stress in fiber-reinforced composite materials using strain measurements from embedded fiber optic sensors is presented. This method allows non-destructive, real-time determination of residual macrostres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53251f0ba909857c5746f71afe0e101d
https://doi.org/10.1177/1045389x9800901002
https://doi.org/10.1177/1045389x9800901002
Publikováno v:
ResearcherID
Tests were performed to measure the failure loads of axially compressed glass-fiber-reinforced and graphite-fiber-reinforced composite cylinders. The data were compared with the results of a previous model, which was based on a three-dimensional stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a07d13ef72d613cbf086829de8e6428
https://doi.org/10.1177/073168449301201004
https://doi.org/10.1177/073168449301201004
Publikováno v:
SPIE Proceedings.
A method to determine process-induced residual stress in composite materials using strain measurements from embedded fiber optic sensors is presented. This method allows non- destructive, real-time determination of residual macrostress in composite m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4de73966c21b8b2339aa5bca9bca88bb
https://doi.org/10.1117/12.275732
https://doi.org/10.1117/12.275732
Publikováno v:
SPIE Proceedings.
Sandia National Laboratories in Livermore, Calif. and the Mechanical Engineering Department of Stanford University are involved in fiber optic sensor research and development for manufacturing process monitoring, smart materials, and other applicatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::633a450eefa027f03c52995b91006a83
https://doi.org/10.1117/12.245586
https://doi.org/10.1117/12.245586
Publikováno v:
SPIE Proceedings.
This paper presents the results of experiments to measure the internal strains and temperatures that are generated in graphite/epoxy composite specimens during processing using embedded fiber optic strain sensors and thermocouples. Measurements of st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4b2e8b9c9761b95cecd29c7cd4be555
https://doi.org/10.1117/12.240892
https://doi.org/10.1117/12.240892
Publikováno v:
Optical Fiber Sensors.
A three axis strain and temperature sensor is described based on the usage of fiber optic gratings. This approach allows issues associated with transverse strain on fiber optic gratings to be overcome.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15200d64c6f6af6bcb8d10d1470d02a1
https://doi.org/10.1364/ofs.1996.we318
https://doi.org/10.1364/ofs.1996.we318
Autor:
Graham H. Thomas, Jay R. Spingarn
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781468457742
During the last several years we have been investigating ultrasonic techniques for evaluating the quality of solid state weld interfaces [1,2]. Promising results have been obtained on a variety of different solid state welds by extracting features fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a73f3249cc544cd6f70b57e75c05a2c4
https://doi.org/10.1007/978-1-4684-5772-8_171
https://doi.org/10.1007/978-1-4684-5772-8_171
Autor:
Graham H. Thomas, Jay R. Spingarn
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461280972
Ultrasonic techniques have classified good and poor solid state welds in several studies [1,2,3]. A number of different types of solid state welds such as pinch welds, inertia welds, and diffusion bonds, have been evaluated with various ultrasonic fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d374db239835f203ba00a7eb33382c6
https://doi.org/10.1007/978-1-4613-0817-1_246
https://doi.org/10.1007/978-1-4613-0817-1_246
Autor:
Graham H. Thomas, Jay R. Spingarn
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461282754
In the simplest view solid state welding of metals occurs when intimate contact is achieved by clean metal surfaces. These two requirements, contact and cleanliness, are attained as a result of thermal diffusion and mechanical deformation. Not surpri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f7cc7d41bbd16011459781d90542df4
https://doi.org/10.1007/978-1-4613-0979-6_52
https://doi.org/10.1007/978-1-4613-0979-6_52
Publikováno v:
Review of Progress in Quantitative Nondestructive Evaluation ISBN: 9781461290544
Tube closure welds, commonly called pinch welds, are made by solid state upset welding, where quality assurance consists of process control and geometric feature verification. Ultrasonic nondestructive evaluation demonstrated the feasibility for sort
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d5e8349ebe4cc45bb464e66d2d23766
https://doi.org/10.1007/978-1-4613-1893-4_198
https://doi.org/10.1007/978-1-4613-1893-4_198