A novel strategy to obtain the fracture envelope under mixed-mode I+II loading of composite bonded joints

The objective of this work is to develop a novel strategy to obtain the fracture envelope of composite bonded joints under mixed-mode I+II loading. Two types of tests are proposed aiming to cover all the range in the space GI-GII. For pure mode I and mixed-mode I+II with predominant mode I, double cantilever beam tests type is proposed considering equal and different specimen arms thickness, respectively. Three-point bending tests are suggested...