scholarly journals NEW EXPERIMENTAL SAMPLE FOR SHEAR TESTING OF ADHESIVELY BONDED ASSEMBLIES

2008 ◽  
Vol 22 (09n11) ◽  
pp. 1081-1086 ◽  
Author(s):  
GEORGES CHALLITA ◽  
RAMZI OTHMAN ◽  
PIERRICK GUEGAN ◽  
KHALID KHALIL ◽  
ARNAUD POITOU
Keyword(s):  
Hopkinson Bar ◽  
Shear Loading ◽  
Shear Behaviour ◽  
Experimental Sample ◽  
Adhesively Bonded ◽  
Compressive Wave ◽  
Split Hopkinson Bar ◽  
Humidity Effects ◽  
Sample Geometry ◽  
Split Hopkinson

In this paper, Split Hopkinson Bar technique was used to investigate the shear behaviour of adhesively bonded assemblies at high rates of loading. New sample geometry was adopted so that the compressive wave is transformed in a shear loading in the sample. Samples are conditioned at 20°C and 50% of hygrometry to eliminate any interference with temperature and humidity effects. The new technique is applied to an assembly built with a cyanoacrylate based adhesive and a metallic (Steel) adherent. They are found to be highly rate sensitive.

scholarly journals Numerical investigation on the effect of specimen gripping arrangement on dynamic shear characterization using Torsion Split Hopkinson Bar

2021 ◽  
Vol 250 ◽  
pp. 02032
Author(s):  
Bhaskar Ramagiri ◽  
Chandra Sekher Yerramalli
Keyword(s):  
Numerical Experiments ◽  
Pure Shear ◽  
Hopkinson Bar ◽  
Shear Loading ◽  
Dynamic Shear ◽  
Split Hopkinson Bar ◽  
The Third ◽  
Split Hopkinson ◽  
Tubular Specimens

Torsion Split Hopkinson Bar (TSHB) is widely used in the dynamic shear characterization of material under pure shear loading. In TSHB, tubular specimens with either circular or hexagonal flanges are used. The specimens with circular flanges are generally bonded using adhesive to the incident and transmission bars. The specimens with hexagonal flanges are gripped into the hexagonal holders that are fixed onto incident and transmission bars. In the current study, numerical simulations are carried out to see the effect of gripping arrangements on the dynamic shear characterization quality. Numerical experiments with three gripping configurations are studied—the first gripping configuration with a direct bond (numerically-tie) between specimen and bars. The second configuration with the specimen gripped by hexagonal holders fixed to bars. The third configuration with specimen directly gripped into the incident and transmission bars having hexagonal slots.

Methodological aspects of testing brittle materials using the split Hopkinson bar technique

Strain ◽  
2021 ◽  
Author(s):  
Anatoly M. Bragov ◽  
Leonid A. Igumnov ◽  
Aleksandr Y. Konstantinov ◽  
Leopold Kruszka ◽  
Dmitry A. Lamzin ◽  
...  
Keyword(s):  
Brittle Materials ◽  
Hopkinson Bar ◽  
Split Hopkinson Bar ◽  
Split Hopkinson ◽  
Methodological Aspects

scholarly journals Experiments and simulation of split Hopkinson Bar tests on sand

2014 ◽  
Vol 500 (11) ◽  
pp. 112018 ◽  
Author(s):  
P D Church ◽  
P J Gould ◽  
A D Wood ◽  
A Tyas
Keyword(s):  
Hopkinson Bar ◽  
Split Hopkinson Bar ◽  
Split Hopkinson

scholarly journals Compression, Tension and Shear Testing of Fibrous Composite with the Split Hopkinson Bar Technique

2018 ◽  
Vol 183 ◽  
pp. 02006 ◽  
Author(s):  
Amos Gilat ◽  
Jeremy D. Seidt
Keyword(s):  
Strain Rate ◽  
High Speed ◽  
Fibrous Composite ◽  
Hopkinson Bar ◽  
Image Correlation ◽  
Compression Tests ◽  
Strain Rate Effects ◽  
Full Field ◽  
Split Hopkinson Bar ◽  
Split Hopkinson

The Split Hopkinson Bar (SHB) technique is used for high strain rate testing of T800/F3900 composite in compression, tension and shear. Digital Image Correlation (DIC) is used for measuring the full-field deformation on the surface of the specimen by using Shimadzu HPV-X2 high-speed video camera. Compression tests have been done on specimens machined from a unidirectional laminate in the 0°and 90° directions. Tensile tests were done in the 90° direction. Shear tests were done by using a notched specimen in a compression SHB apparatus. To study the effect of strain rate, quasi-static testing was also done using DIC and specimens with the same geometry as in the SHB tests. The results show that the DIC technique provides accurate strain measurements even at strains that are smaller than 1%. No strain rate effect is observed in compression in the 0° direction and significant strain rate effects are observed in compression and tension in the 90° direction, and in shear.

Evolution of θ′ precipitate in aluminum alloy 2519A impacted by split Hopkinson bar

2015 ◽  
Vol 620 ◽  
pp. 241-245 ◽  
Author(s):  
Sun Da-xiang ◽  
Zhang Xin-ming ◽  
Ye Ling-ying ◽  
Gu Gang ◽  
Jiang Hai-chun ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Hopkinson Bar ◽  
Split Hopkinson Bar ◽  
Split Hopkinson
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