Revisiting the basis of transient rheological material functions: Insights from recoverable strain measurements

2021 ◽  
Vol 65 (2) ◽  
pp. 129-144
Author(s):  
Piyush K. Singh ◽  
Johnny Ching-Wei Lee ◽  
Kshitish A. Patankar ◽  
Simon A. Rogers
Keyword(s):  
Recoverable Strain ◽  
Strain Measurements ◽  
Material Functions

Serial Cardiovascular Magnetic Resonance Strain Measurements to Identify Cardiotoxicity in Breast Cancer

2020 ◽  
Author(s):  
Christian P. Houbois ◽  
Mark Nolan ◽  
Emily Somerset ◽  
Tamar Shalmon ◽  
Maryam Esmaeilzadeh ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cardiovascular Magnetic Resonance ◽  
Magnetic Resonance ◽  
Strain Measurements

scholarly journals Distributed Static and Dynamic Strain Measurements in Polymer Optical Fibers by Rayleigh Scattering

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5049
Author(s):  
Agnese Coscetta ◽  
Ester Catalano ◽  
Enis Cerri ◽  
Ricardo Oliveira ◽  
Lucia Bilro ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Time Domain ◽  
Rayleigh Scattering ◽  
Cost Effective ◽  
Time Domain Reflectometry ◽  
Dynamic Strain ◽  
Strain Measurements ◽  
Graded Index ◽  
Optical Time ◽  
Polymer Optical Fibers

We demonstrate the use of a graded-index perfluorinated optical fiber (GI-POF) for distributed static and dynamic strain measurements based on Rayleigh scattering. The system is based on an amplitude-based phase-sensitive Optical Time-Domain Reflectometry (ϕ-OTDR) configuration, operated at the unconventional wavelength of 850 nm. Static strain measurements have been carried out at a spatial resolution of 4 m and for a strain up to 3.5% by exploiting the increase of the backscatter Rayleigh coefficient consequent to the application of a tensile strain, while vibration/acoustic measurements have been demonstrated for a sampling frequency up to 833 Hz by exploiting the vibration-induced changes in the backscatter Rayleigh intensity time-domain traces arising from coherent interference within the pulse. The reported tests demonstrate that polymer optical fibers can be used for cost-effective multiparameter sensing.

scholarly journals Structural health monitoring of aerospace sandwich structures via strain measurements along zero-strain trajectories

2021 ◽  
pp. 105454
Author(s):  
Thomas Bergmayr ◽  
Markus Winklberger ◽  
Christoph Kralovec ◽  
Martin Schagerl
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Sandwich Structures ◽  
Strain Measurements ◽  
Structural Health

scholarly journals Speckle pattern creation methods for two‐dimensional digital image correlation strain measurements applied to mechanical tensile tests up to 700°C

Strain ◽  
2021 ◽  
Author(s):  
Phuong Luong ◽  
Rébecca Bonnaire ◽  
Jean‐Noel Périé ◽  
Quentin Sirvin ◽  
Luc Penazzi
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Speckle Pattern ◽  
Tensile Tests ◽  
Image Correlation ◽  
Two Dimensional ◽  
Strain Measurements ◽  
Mechanical Tensile

scholarly journals Effect of chemical composition and quenching media on recoverable strain in Cu–Zn–Al alloys

2021 ◽  
Vol 12 ◽  
pp. 1368-1379
Author(s):  
Vanja Asanović ◽  
Dragan Radonjić ◽  
Jelena Šćepanović ◽  
Darko Vuksanović
Keyword(s):  
Chemical Composition ◽  
Al Alloys ◽  
Recoverable Strain ◽  
Quenching Media

Discursive stickiness: Affective institutional texts and activist resistance

2021 ◽  
pp. 2046147X2110083
Author(s):  
Erica Ciszek ◽  
Richard Mocarsky ◽  
Sarah Price ◽  
Elaine Almeida
Keyword(s):  
Public Relations ◽  
Material Functions ◽  
History Of ◽  
Gender Transgression ◽  
Historical Discourses ◽  
Institutional Texts ◽  
Public Relations Theory

Pushing the bounds of public relations theory and research, we explore how institutional texts have produced and reified stigmas around gender transgression and how these texts are bound up in moments of activism and resistance. We considered how different discursive and material functions get “stuck” together by way of texts and how this sticking depends on a history of association and institutionalization. Activism presents opportunities to challenge institutional and structural stickiness, and we argue that public relations can challenge the affective assemblages that comprise and perpetuate these systems, unsettling the historical discourses that have governed institutions by establishing new communicative possibilities.

Integrity Assessment and On-Site Repair of a Floating Production Platform

2005 ◽  
Author(s):  
Mauro G. Marinho ◽  
Alexandre M. Pope ◽  
Luiz Claudio Meniconi ◽  
Luiz Henrique M. Alves ◽  
Cesar Del Vecchio
Keyword(s):  
High Stress ◽  
Local Strain ◽  
Business Unit ◽  
Gusset Plates ◽  
Strain Measurements ◽  
Integrity Assessment ◽  
High Stress Concentration ◽  
Production Platform ◽  
Welding Defects ◽  
Classification Society

Following the warning of a flooded bow horizontal brace of a semi-submersible production platform, an inspection diving team was mobilized and cracks were found at both bow and aft K-joints. Analysis of the service life of the platform, together with the results of structural analysis and local strain measurements, concluded that cracking was caused by fatigue initiated at high stress concentration points on the gusset plates inserted in the tubular joints. As a consequence of the fractured plates other cracks were nucleated close to the intersection lines of the braces that compose the K-joints. Based on this analysis different repair possibilities were proposed. To comply with the production goals of the Business Unit it was decided to repair the platform on-site and in production in agreement with the Classification Society. The proposed repair contemplated the installation of two flanges on the gusset plates between the diagonal braces by underwater wet (UWW) welding. Cracks at the gusset plates were also removed by grinding and wet welding. Defects located at the braces are being monitored and repaired by the installation of backing bars, by wet welding, followed by grinding and welding from the inside. To carry out the job two weld procedures and ten welder-divers were qualified.

Deduction of Spinal Loading from Vertebral Body Surface Strain Measurements

2007 ◽  
Vol 47 (3) ◽  
pp. 303-310 ◽  
Author(s):  
D. R. Linders ◽  
D. J. Nuckley
Keyword(s):  
Vertebral Body ◽  
Body Surface ◽  
Surface Strain ◽  
Spinal Loading ◽  
Strain Measurements
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