Results 91 to 100 of about 24,236 (228)
Results in Physics, 2019 A new experimental methodology and test system is proposed to assess the wall pressure due to the high-voltage underwater Spark-generated bubble. In the methodology, a Hopkinson bar is used as the sensing element and the pressure signal is obtained based
Xiongliang Yao +3 more
doaj +1 more source
On backward dispersion correction of Hopkinson pressure bar signals [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 Elastic theory shows that wide spectrum signals in the Hopkinson pressure bar suffer two forms of distortion as they propagate from the loaded bar face. These must be accounted for if accurate determination of the impact load is to be possible. The first form of distortion is the well-known phase velocity dispersion effect.
A, Tyas, Z, Ozdemir
openaire +2 more sources
, 2001 International audienceWhen using a classical SHPB (Split Hopkinson Pressure Bar) set-up, the useful measuring time is limited by the need of separating the waves propagating in opposite directions.
Bussac, Marie-Noëlle +3 more
core +4 more sources
Remote Sensing in Ecology and Conservation, EarlyView.The single‐scan approach to terrestrial laser scanning (TLS) and the self‐terrain‐normalized form of drone‐based digital aerial photogrammetry (DAP) offer practical options for rapid assessment of the vegetation structure in tropical landscapes.
Magnus Onyiriagwu +7 more
wiley +1 more source
Parametric characterization and error analysis of Hopkinson bar waveforms
Next MaterialsThe Hopkinson bar technique is an essential method for characterizing material dynamic properties. This study develops a parametric framework for stress waveform characterization, incorporating time-dependent markers (t0 to t3), amplitude-dependent ...
He Chen, Guangping Zou
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Experimental study of the high strain rate shear behaviour of Ti6Al4V [PDF]
, 2011 Three different high strain rate shear test techniques are applied on the titanium alloy Ti6Al4V. Two techniques for testing of bulk materials and one technique for sheet materials are used: torsion of thin-walled tubes, compression of hat-shaped ...
Degrieck, Joris +2 more
core +2 more sources
Role of extracellular carbonic anhydrase in the polar diatom Fragilariopsis cylindrus
New Phytologist, EarlyView.Summary Diatoms are major primary producers in productive polar oceans, where cold temperatures and high CO2 solubility raise questions as to whether they rely on the CO2‐concentrating mechanism (CCM) to saturate photosynthesis. Knowledge of CCM function will help better predict the sensitivity of diatom primary production to warming and acidifying ...
Meng Li, Jodi N. Young
wiley +1 more source
Stress Transfer Mechanism of Flange in Split Hopkinson Tension Bar
Applied Sciences, 2020 To reveal the stress transfer mechanism of the flange in a split Hopkinson tension bar, explicit finite element analyses of the impact of the hollow striker on the flange were performed across a range of flange lengths.
Hyunho Shin, Sanghoon Kim, Jong-Bong Kim
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The transportation of Narain Sing: punishment, honour and identity from the Anglo–Sikh Wars to the Great Revolt [PDF]
, 2009 This paper examines fragments from the life of Narain Sing as a means of exploring punishment, labour, society and social transformation in the aftermath of the Anglo–Sikh Wars (1845–1846, 1848–1849).
Arnold +8 more
core +1 more source
Pandemic Geographies of Home: Domestic Thresholding in Response to COVID‐19
Transactions of the Institute of British Geographers, EarlyView.Short Abstract With the home at the forefront of political and public health responses to COVID‐19, the thresholds between domestic space and the world beyond acquired a new significance in people's everyday lives. This paper introduces the concept of ‘thresholding’ to explore the ways in which internal and external thresholds are understood and ...
Alison Blunt +7 more
wiley +1 more source