Static Strength of V-Notches With End Holes Under Combined Tension-Shear Loading: Experimental Measurement by the Disk Test and Theoretical Prediction by the Local Energy

2016 ◽  
Vol 45 (3) ◽  
pp. 20140496 ◽  
Author(s):  
A. R. Torabi ◽  
A. Campagnolo ◽  
F. Berto
Keyword(s):  
Theoretical Prediction ◽  
Experimental Measurement ◽  
Static Strength ◽  
Shear Loading ◽  
Local Energy ◽  
Disk Test

scholarly journals Thermo-responsive and shape-morphing CF/GF composite skin: Full-field experimental measurement, theoretical prediction, and finite element analysis

2021 ◽  
Vol 160 ◽  
pp. 106874
Author(s):  
Jamal Seyyed Monfared Zanjani ◽  
Pouya Yousefi Louyeh ◽  
Isa Emami Tabrizi ◽  
Abdulrahman Saeed Al-Nadhari ◽  
Mehmet Yildiz
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Prediction ◽  
Experimental Measurement ◽  
Element Analysis ◽  
Full Field ◽  
Shape Morphing

Theoretical Prediction and Experimental Measurement of the Degree of Cure of Anisotropic Conductive Films (ACFs) for Chip-On-Flex (COF) Applications

2008 ◽  
Vol 37 (10) ◽  
pp. 1580-1590 ◽  
Author(s):  
Chang-Kyu Chung ◽  
Yong-Min Kwon ◽  
Il Kim ◽  
Ho-Young Son ◽  
Kyo-Sung Choo ◽  
...  
Keyword(s):  
Theoretical Prediction ◽  
Experimental Measurement ◽  
Degree Of Cure ◽  
Conductive Films

scholarly journals Impact of correlations between $$a_{\mu }$$ and $$\alpha _\text {QED}$$ on the EW fit

2021 ◽  
Vol 81 (1) ◽  
Author(s):  
Bogdan Malaescu ◽  
Matthias Schott
Keyword(s):  
Theoretical Prediction ◽  
Experimental Measurement ◽  
Mass Range ◽  
Appropriate Use ◽  
Lower Mass ◽  
Vacuum Polarisation ◽  
Theoretical Predictions ◽  
Potential Impact ◽  
Parameter Values ◽  
The Impact

AbstractWe study the potential impact on the electroweak (EW) fits due to the tensions between the current determinations of the hadronic vacuum polarisation (HVP) contributions to the anomalous magnetic moment of the muon ($$a_{\mu }$$ a μ ), based on either phenomenological dispersion integrals using measured hadronic spectra or on Lattice QCD calculations. The impact of the current tension between the experimental measurement of $$a_{\mu }$$ a μ and the total theoretical prediction based on the phenomenological calculations of the HVP is also studied. The correlations between the uncertainties of the theoretical predictions of $$a_{\mu }$$ a μ and of the running of $$\alpha _\mathrm{QED}$$ α QED are taken into account in the studies. We conclude that the impact on the EW fit can be large in improbable scenarios involving global shifts of the full HVP contribution, while it is much smaller if the shift is restricted to a lower mass range and/or if the shift in $$\alpha _\text {QED}$$ α QED is obtained from that in $$a_{\mu }$$ a μ through appropriate use of the correlations. Indeed, the latter scenarios only imply at most a 2.6/16 increase in the $$\chi ^2/\text {n.d.f.} $$ χ 2 / n.d.f. of the EW fits and relatively small changes for the resulting fit parameter values.

Modelling the deformation of a high-hardness armour steel in Taylor rod-on-anvil experiments

2019 ◽  
Author(s):  
Shannon Ryan ◽  
Brodie McDonald ◽  
Nikki Scott ◽  
Rory Bigger ◽  
Sidney Chocron
Keyword(s):  
Experimental Measurement ◽  
High Speed ◽  
Elevated Temperatures ◽  
High Hardness ◽  
Shear Loading ◽  
Surface Strain ◽  
Image Correlation ◽  
High Speed Photography ◽  
Rate Dependency ◽  
Armour Steel

Abstract A high hardness armour steel (HHA) has been subjected to mechanical characterization under tension, compression, and shear loading at quasi-static and dynamic rates incorporating ambient and elevated temperatures. The resulting data has been used to derive constants for four plasticity constitutive models: Johnson-Cook (JC), Zerilli-Armstrong (ZA), modified Johnson-Cook (MJC), and a generalized J2-J3 yield surface (GYS). The resulting models have been used to predict the response of the HHA material during Taylor rod-on-anvil experiments. High speed photography and digital image correlation was used during the rod-on-anvil experiments to capture both transient deformation profiles and maximum principal strain along the surface of the rod (i.e. compression along the length of the rod). The JC, MJC, and GYS models were found to provide the best prediction of the shape of the rod (nose diameter and length), within 2% of the experimental measurement in all four rod-on-anvil experiments which did not result in fracture. The JC and GYS models, furthermore, were found to provide the best agreement with the measured transient surface strain profiles, predicting the experimental measurement to within 10% at all measurement locations and time steps for the experiment resulting in maximum deformation (impact velocity = 208 m/s). The results suggest that the added complexity of models such as the MJC and GYS, which incorporate strain hardening saturation, two-part strain rate dependency, and J3 plasticity effects, are unnecessary for HHA under the loading conditions experienced during rod-on-anvil experiments.

scholarly journals Theoretical prediction and experimental measurement of isothermal extrudate swell of monodisperse and bidisperse polystyrenes

2017 ◽  
Vol 61 (5) ◽  
pp. 931-945 ◽  
Author(s):  
Ben Robertson ◽  
Richard L. Thompson ◽  
Tom C. B. McLeish ◽  
Ian Robinson
Keyword(s):  
Theoretical Prediction ◽  
Experimental Measurement ◽  
Extrudate Swell

scholarly journals The Muon g − 2 experiment at Fermilab

2019 ◽  
Vol 212 ◽  
pp. 05003 ◽  
Author(s):  
Alexander Keshavarzi
Keyword(s):  
Theoretical Prediction ◽  
Magnetic Anomaly ◽  
Experimental Measurement ◽  
Previous Experiment ◽  
New Physics ◽  
Statistical Uncertainty ◽  
Experimental Programme ◽  
Muon Magnetic Anomaly

The current ~ 3.5σ discrepancy between the experimental measurement and theoretical prediction of the muon magnetic anomaly, aµ, stands as a potential indication of the existence of new physics. The Muon g − 2 experiment at Fermilab is set to measure aµ with a four-fold improvement in the uncertainty with respect to previous experiment, with an aim to determine whether the g − 2 discrepancy is well established. The experiment recently completed its first physics run and a summer programme of essential upgrades, before continuing on with its experimental programme. The Run-1 data alone are expected to yield a statistical uncertainty of 350 ppb and the publication of the first result is expected in late-2019.

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