scholarly journals Study of Ligament Length Effect on Mode Mix of a Modified In-Plane Shear Test Specimen

2016 ◽  
Vol 5 (3) ◽  
pp. MPC20150058
Author(s):  
M. S. Islam ◽  
S. Kao-Walter ◽  
G. Yang

1996 ◽  
Vol 24 (1) ◽  
pp. 1 ◽  
Author(s):  
DR Petersen ◽  
RE Link ◽  
YJ Chiang








1983 ◽  
Vol 2 (11) ◽  
pp. 663-664 ◽  
Author(s):  
B. I. G. Barr ◽  
K. L. W. Liu


2007 ◽  
Author(s):  
Rui P. R. Cardoso ◽  
Jeong-Whan Yoon ◽  
José J. Grácio


1995 ◽  
Vol 35 (4) ◽  
pp. 352-360 ◽  
Author(s):  
D. F. Adams ◽  
E. Q. Lewis


2018 ◽  
Vol 65 ◽  
pp. 44-53 ◽  
Author(s):  
Fathollah Taheri-Behrooz ◽  
Hosein Salehi Moghaddam


2014 ◽  
Vol 87 (3) ◽  
pp. 501-515 ◽  
Author(s):  
C. Marano ◽  
M. Boggio ◽  
E. Cazzoni ◽  
M. Rink

ABSTRACT Material anisotropy induced by strain in filled vulcanized rubbers strongly affects fracture toughness. The influence of carbon black content on fracture phenomenology and fracture toughness was investigated by performing video-recorded tests adopting a suitable grooved notched pure shear test specimen. In such a way, it was possible to analyze the so-called “knotty tearing” deformation mechanism occurring at the crack tip: sideways cracks perpendicular to the notch plane develop before the onset and propagation of a forward crack parallel to the notch plane. The J-integral fracture mechanics approach was adopted and digital image correlation analysis was performed to measure the strain at the crack tip. The presence of carbon black modifies the maximum chain extensibility and strain-induced crystallizability of the rubber matrix in the compound. The formation of sideways cracks occurred in all filled compounds and resulted in a link to the maximum chain extensibility. Nevertheless, toughness enhancement was observed only when strain-induced crystallization took place at the crack tip before the onset of the forward crack.



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