Size effect on the fracture toughness of metallic foil
The size effects on fracture behavior of Cu foil are investigated by a new optical technique, the digital speckle correlation method (DSCM). Displacement and strain fields around a crack tip are analyzed for different thicknesses of Cu foil. Then, the J integral and fracture toughness JC are evaluated directly from the strain fields around the crack tip. The fracture toughness JC is obtained as a function of foil thickness. The results indicate that JC indeed depends on foil thickness within a...[Show more]
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|Source:||International Journal of Fracture|
|01_Wang_Size_effect_on_the_fracture_2003.pdf||138.16 kB||Adobe PDF||Request a copy|
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