scholarly journals Specimen Size Effects in Charpy Impact Testing

2009 ◽  
pp. 179-179-13 ◽  
Author(s):  
DJ Alexander ◽  
RL Klueh
Keyword(s):  
Size Effects ◽  
Charpy Impact ◽  
Specimen Size ◽  
Impact Testing ◽  
Charpy Impact Testing

The influence of specimen size on charpy impact testing of unirradiated HT-9

1988 ◽  
Vol 155-157 ◽  
pp. 662-667 ◽  
Author(s):  
B.S. Louden ◽  
A.S. Kumar ◽  
F.A. Garner ◽  
M.L. Hamilton ◽  
W.L. Hu
Keyword(s):  
Charpy Impact ◽  
Specimen Size ◽  
Impact Testing ◽  
Charpy Impact Testing

Alfa fibers for Cereplast bio-composites reinforcement: Effects of chemical and biological treatments on the mechanical properties

2021 ◽  
pp. 096739112110060
Author(s):  
Mouna Werchefani ◽  
Catherine Lacoste ◽  
Hafedh Belguith ◽  
Chedly Bradai
Keyword(s):  
Charpy Impact ◽  
Impact Testing ◽  
Hot Water ◽  
Cellulose Content ◽  
Twin Screw ◽  
Electron Microscopy Analysis ◽  
Alfa Fibers ◽  
Charpy Impact Testing ◽  
Water Treatments ◽  
The Impact

The present work is a comparative study of the impact of Alfa fiber modifications on the Cereplast composites mechanical behavior. Various treatments have been employed, including mechanical, soda, saltwater-retting, hot-water treatments and enzymatic treatment using xylanase. Chemical and morphological analyses were carried out in order to determine the changes of the biochemical composition and the dimensions of fibers. Cereplast composites reinforced with Alfa fibers were fabricated using a twin-screw extrusion followed by an injection molding technique with a fiber load of 20 wt. %. Resulting materials were assessed by means of tensile, flexural and Charpy impact testing. Scanning Electron Microscopy analysis was carried out to investigate the interfacial properties of the composites. The results have shown a significant enhancement of mechanical strengths and rigidities for the xylanase-treated fiber composites, owing to the increase of cellulose content, the enhancement of defibrillation level and the improvement of matrix-fiber adhesion. The data proved that the technology of enzymes can be used as a powerful and eco-friendly approach to modify fiber surfaces and to increase their potential of reinforcement.

Charpy Impact Testing at 20°K

1965 ◽  
pp. 56-62 ◽  
Author(s):  
T. F. Kiefer ◽  
R. D. Keys ◽  
F. R. Schwartzberg
Keyword(s):  
Charpy Impact ◽  
Impact Testing ◽  
Charpy Impact Testing
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