This paper studies the effect of initial crack location on the face/core debond fracture toughness under different mixed mode loading conditions. The mixed mode loading at the crack tip is defined in terms of the mode-mixity. In order to achieve the desired initial debond crack location, a pre-cracking technique is developed, where the mode-mixity, number of cycles, crack increment and load level are accurately controlled. Results show that the debond fracture resistance of foam-cored sandwich specimens depends on parameters such as loading condition (mode-mixity), core and face properties, as well as initial debond crack location. Lower fracture toughness values were measured for specimens with the initial crack location in the face laminate.
|Journal||E P J Web of Conferences|
|Publication status||Published - 2010|
|Event||14th International Conference on Experimental Mechanics - Poitiers, France|
Duration: 4 Jul 2010 → 9 Jul 2010
Conference number: 14
|Conference||14th International Conference on Experimental Mechanics|
|Period||04/07/2010 → 09/07/2010|