Results 121 to 130 of about 24,236 (228)

Modelling split-Hopkinson pressure bar tests on quartz sand [PDF]

, 2015
FE modelling of a confined split Hopkinson pressure bar (SHPB) test on dry quartz sand was carried out using LS-DYNA in order to assess whether Material Model 5 could replicate experimental results, which would enable a more detailed investigation of ...
Barr, A., Clarke, S.D., Petkovski, M., Rigby, S.E.   +3 more
core  

High Strain Rate Response of Adhesively Bonded Fiber-Reinforced Composite Joints A Computational Study to Guide Experimental Design [PDF]

Adhesively bonded carbon fiber-reinforced epoxy composite laminates are widely used in aerospace applications. During a high energy impact event, these laminates are often subjected to high strain rate loading.
Justusson, Brian, Kidane, Addis, Pang, Jenna, Ravindran, Suraj, Sockalingam, Subramani, Sutton, Michael   +5 more
core   +1 more source

Signal Correction for the Split-Hopkinson Bar Testing of Soft Materials

Dynamics
The Split-Hopkinson pressure bar (SHPB) test is a commonly accepted experiment to investigate the material behavior under high strain rates. Due to the low impedance of soft materials, here, the test has to be performed with plastic bars instead of metal
Sören Bieler, Kerstin Weinberg
doaj   +1 more source

Carrier relaxation mechanisms in self-assembled (In,Ga)As/GaAs quantum dots: Efficient P -> S Auger relaxation of electrons

, 2006
We calculate the P-shell--to-S-shell decay lifetime \tau(P->S) of electrons in lens-shaped self-assembled (In,Ga)As/GaAs dots due to Auger electron-hole scattering within an atomistic pseudopotential-based approach. We find that this relaxation mechanism
Al. L. Efros, Alex Zunger, E. A. Zibik, E. A. Zibik, Gabriel Bester, Gustavo A. Narvaez, H. Jiang, Landolt-Börnstein, P. Guyot-Sionnest   +8 more
core   +1 more source

Comparison between the mechanical behavior of woven basalt and glass epoxy composites at high strain rates

, 2021
Elmahdy, Ahmed, Verleysen, Patricia
core   +1 more source

Strain rate effect on the mechanical behaviour of a textile reinforced cement composite [PDF]

, 2010
The static tensile behaviour of Textile Reinforced Cement Composites is known and can be modeled adequately. However, using these static material properties under dynamic loadings such as impact and seismic loadings, can cause over- or underestimation of
Blom, J, Degrieck, Joris, Kakogiannis, D, Palanivelu, Sivakumar, Van Ackeren, J, Van Hemelrijck, D, Van Paepegem, Wim, Vantomme, J, Wastiels, J   +8 more
core  

Caracterización dinámica mediante barra Hopkinson de materiales cerámicos monolíticos y compuestos

Boletín de la Sociedad Española de Cerámica y Vidrio, 2002
The mechanical behaviour of monolithic and composite ceramic materials was analysed under impact conditions, using the Hopkinson bar to study the response and failure modes.
Khalifa, A., Barbero, E., Miranzo, P., Navarro, C.   +3 more
doaj  

Implementation of viscoelastic Hopkinson bars

, 2011
The properties of soft, viscoelastic materials at high strain rates are important in furthering our understanding of their role during blast or impact events. Testing these soft or low impedance materials using metallic bars in a split Hopkinson pressure bar setup, poor signal to noise ratios and impedance mismatching occur.
openaire   +1 more source

Development of a new testing equipment that combines the working principles of both the split Hopkinson bar and the drop weight testers. [PDF]

Springerplus, 2016
Adas R, Haiba M.
europepmc   +1 more source

HOPKINSON BAR TESTING OF CELLULAR MATERIALS

, 2010
Cellular materials are often used as impact/blast attenuators due to their capacity to absorb kinetic energy when compressed to large strains. For such applications, three key material properties are the crushing stress, plateau stress and densification strain.
openaire   +1 more source