scholarly journals Dynamic Deformation Mechanisms and In-situ Thermal Response of 7050 Al Alloy at High Strain Rates

2020 ◽  
Author(s):  
Francis Tetteh ◽  
Solomon Boakye-Yiadom ◽  
Solomon Duntu ◽  
Ahmed Elsayed Moter
Keyword(s):  
High Strain ◽  
Dynamic Deformation ◽  
Thermal Response ◽  
Deformation Mechanisms ◽  
Al Alloy ◽  
Strain Rates ◽  
High Strain Rates

Fracture of Laminated and In Situ Niobium Silicide-Niobium Composites

1996 ◽  
Vol 434 ◽  
Author(s):  
J. D. Rigney
Keyword(s):  
Low Temperatures ◽  
Fracture Resistance ◽  
Fracture Behavior ◽  
High Strain ◽  
Theoretical Models ◽  
High Yield ◽  
Strain Rates ◽  
High Strain Rates ◽  
Ductile Phase

AbstractThe mechanisms contributing to the fracture resistance of refractory metal intermetallic composites containing a BCC metallic phase (niobium) were investigated using model Nb-Si laminates and in situ composites. The controlling influence of ductile phase yield strength and fracture behavior were investigated by varying laminate processing parameters, and/or altering temperatures and applied strain rates during fracture experiments on all materials. The fracture behavior of “ductile” constituents were found to be influenced by phase grain size, solid solution content, constraint (as influenced by interfacial bond strengths), and the testing condition (high strain rates and low temperatures). The measured fracture resistance, when compared to theoretical models, was shown to be controlled by the “toughness” of the “ductile” phase and independent of the fracture behavior promoted (cleavage and ductile). The loss in ductility due to cleavage by high constraint, high strain rates and/or low temperatures was compensated by high yield and cleavage fracture stresses in order to provide a level of toughening similar to that contributed by ligaments which failed with lower yield stresses and greater strains.

Deformation behavior of Al/Cu in-situ metal-intermetallic laminates at low and high strain rates

2021 ◽  
pp. 159767
Author(s):  
Kartheek. S.M. Sonti ◽  
Biswaranjan Dash ◽  
K.V. Vamsi ◽  
H. Bandyopadhyay ◽  
B. Ravisankar ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
High Strain ◽  
Strain Rates ◽  
High Strain Rates

A comparison of the abilities of natural rubber (NR) and synthetic polyisoprene cis-1,4 rubber (IR) to crystallize under strain at high strain rates

2016 ◽  
Vol 18 (5) ◽  
pp. 3472-3481 ◽  
Author(s):  
Nicolas Candau ◽  
Laurent Chazeau ◽  
Jean-Marc Chenal ◽  
Catherine Gauthier ◽  
Etienne Munch
Keyword(s):  
Comparative Study ◽  
Natural Rubber ◽  
High Strain ◽  
Strain Rates ◽  
High Strain Rates ◽  
Synthetic Rubber ◽  
Strain Induced Crystallization ◽  
First Time ◽  
Induced Crystallization

In situ WAXS experiments combined with a thermodynamic approach allowed for the first time a comparative study of strain induced crystallization of natural and synthetic rubber at high strain rates.

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