Results 21 to 30 of about 11,967 (233)

The variation in transparency of amniotic membrane used in ocular surface regeneration [PDF]

, 2010
Background/aims: Scant consideration has been given to the variation in structure of the human amniotic membrane (AM) at source or to the significance such differences might have on its clinical transparency.
Chen, Bo, Connon, Che John, Doutch, James, Hopkinson, Andy, Kinoshita, Shigeru, Meek, Keith, Mehta, Jod, Nakamura, Takahiro   +7 more
core   +1 more source

Development of new Hopkinson’s device dedicated to rib’s bone characterisation

EPJ Web of Conferences, 2012
This study presents an original approach for the design of adapted Hopkinson device dedicated to the characterisation of human ribs’ cortical bone.
Markiewicz E., Drazetic P., Delille R., Chaâri F., Haugou G., Mayeur O.   +5 more
doaj   +1 more source

X-ray microtomographic characterization and quantification of the strain rate dependent failure mechanism in cenosphere epoxy syntactic foams [PDF]

, 2016
This work investigates the failure mechanism in cenosphere epoxy syntactic foams at the quasi-static and dynamic strain rates. Split-Hopkinson pressure bar experiments are controlled to stop dynamic deformation of the foams at various strain stages.
Adrien, Ahmadi, Awaja, Das, Dou, Gu, Huang, Huang, Kim, Kishore, Klaus, Labella, Li, Li, Li, Li, Maire, Orbulov, Pellegrino, Peroni, Song, Veseniak, Viot, Wang, Woldesenbet, Woldesenbet, Wouterson   +26 more
core   +1 more source

Investigation into dynamic response of a three-point bend specimen in a Hopkinson bar loaded fracture test using numerical methods

Advances in Mechanical Engineering, 2015
Dynamic fracture toughness of engineering materials at loading rates greater than 10 6 MPa m / s is widely investigated using the modified Hopkinson pressure bar apparatus.
Raja Ahsan Javed, Zhu Shifan, Chunhuan Guo, Kenneth S Vecchio, Fengchun Jiang   +4 more
doaj   +1 more source

Correction Procedure of Wave Signals for a Viscoelastic Split Hopkinson Pressure Bar [PDF]

Problemy Mechatroniki, 2016
A polymeric split Hopkinson pressure bar technique (SHPB) is preferred for testing materials with low mechanical impedance. However, the use of polymeric bars requires additional analysis for data reduction, temperature complications and additional ...
Jacek JANISZEWSKI, Witold BUŻANTOWICZ, Paweł BARANOWSKI   +2 more
doaj   +1 more source

Design considerations for joining of tubular members subjected to impact loading

Journal of Advanced Joining Processes, 2021
This study explores the effect of impact loading in structural bar and tube welded and threaded joints. Specifically, this work concentrates on stress wave propagation and mechanical impedance to show the effect of geometric parameters on stress ...
Richard Leonard, III, Luke Luskin, Luliang Zhang, Jeffery Jinkerson, Justin Morse, Mark Horstemeyer, Haitham El Kadiri, Hongjoo Rhee, Josh Loukus, Wilburn Whittington   +9 more
doaj   +1 more source

A comparative study on the restrictions of dynamic test methods

EPJ Web of Conferences, 2015
Dynamic behavior of materials is investigated using different devices. Each of the devices has some restrictions. For instance, the stress-strain curve of the materials can be captured at high strain rates only with Hopkinson bar. However, by using a new
Majzoobi GH., Lahmi S.
doaj   +1 more source

Improved specimen recovery in tensile split Hopkinson bar [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
This paper presents an improved specimen recovery method for the tensile split Hopkinson bar (TSHB) technique. The method is based on the trapping of residual stress waves with the use of momentum trap bars. As is well known, successful momentum trapping in TSHB is highly sensitive to experimental uncertainties, especially on the incident bar side of ...
Isakov, Matti, Hiermaier, Stefan, Kuokkala, Veli-Tapani   +2 more
openaire   +3 more sources

High strain rate response of UHP(FR)C in compression

EPJ Web of Conferences, 2015
The objective of this study was to investigate the compression behaviour of the UHPFRC and its matrix (UHPC) under high strain rate. Two experimental set-ups were used for compression testing: a traditional Split Hopkinson Pressure Bars and a compression
Bragov Anatoly, Konstantinov Alexandr, Lomunov Andrey, Forni Daniele, Riganti Gianmario, Cadoni Ezio   +5 more
doaj   +1 more source

Lateral Marsh Edge Erosion as a Source of Sediments for Vertical Marsh Accretion [PDF]

, 2018
With sea level rise accelerating and sediment inputs to the coast declining worldwide, there is concern that tidal wetlands will drown. To better understand this concern, sources of sediment contributing to marsh elevation gain were computed for Plum ...
Barbier, Bauer, Blum, Blum, Cahoon, Cavatorta, Claessens, Cook, Costanza, Day, Day, Dhillon, Donnelly, Donnelly, Engelhart, Eyre, Fagherazzi, Fagherazzi, Foley, Forbrich, French, Ganju, Ganju, Geyer, Gittman, Gosselink, Hayden, Hein, Hobbs, Hopkinson, Hughes, Kirwan, Kirwan, Kirwan, Koch, Lane, Leonardi, Leonardi, Leonardi, Levin, Magirl, Marcus, Mariotti, Mariotti, Mariotti, Mattheus, McGeehin, McKee, Meade, Meade, Megonigal, Millette, Milliman, Mineau, Morris, Morris, Morris, Morris, Morris, Mudd, Pasternack, Pavich, Priestas, Rahmstorf, Raymond, Redfield, Redfield, Redfield, Reed, Rovere, Schmidt, Schwimmer, Sholkovitz, Stuiver, Swales, Syvitski, Townsend, Trimble, Vallino, Vallino, Walsh, Warrick, Warrick, Watson, Weston, Wilson, Wollheim, Wollheim, Worm, Yarbro, Zhao   +90 more
core   +3 more sources