scholarly journals Three-Dimensional Mixed-Mode Fracture of the Four-Point Shear Specimen

2015 ◽  
Author(s):  
Mark Cohen
Keyword(s):  
Mixed Mode ◽  
Three Dimensional ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
Shear Specimen

Mixed-mode fracture: The four-point shear specimen

1990 ◽  
Vol 38 (5) ◽  
pp. 839-846 ◽  
Author(s):  
M.Y. He ◽  
H.C. Cao ◽  
A.G. Evans
Keyword(s):  
Mixed Mode ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
Shear Specimen

An Evaluation of the Compact Shear Specimen for Mixed Mode Fracture Studies

1983 ◽  
Vol 105 (4) ◽  
pp. 268-272 ◽  
Author(s):  
R. A. Riddle ◽  
R. D. Streit ◽  
I. Finnie
Keyword(s):  
Mixed Mode ◽  
Mode I ◽  
Mixed Mode Fracture ◽  
Pure Mode ◽  
Mode Fracture ◽  
Shear Specimen ◽  
Compact Shear ◽  
Detailed Computer ◽  
Almost All ◽  
Direction Opposite

A compact shear specimen configuration, consisting of three legs with the outer two loaded axially in a direction opposite to the inner one, has been used for several mixed-mode fracture studies. From a detailed computer analysis of this specimen, it is shown that the loading boundary conditions play an extremely important role in determining the state of stress at the crack tip. By simply changing the flexibility of the loading fixture, the specimen can be subjected to a range of mixed mode conditions from almost all Mode I to virtually pure Mode II. Data of other researchers are reviewed in light of this finding. It is shown that by applying loads obliquely to the outer legs pure Mode I loading may also be obtained with this specimen.

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