04.1 - Aerospace Grade Materials, Structural Analysis, Fatigue and Damage Tolerance
APPLICATION OF THE VIRTUAL CRACK CLOSURE TECHNIQUE FOR CRACKS IN BUILT-UP PANELS
W.R.P. Mendonca¹, M.R.B. Rodrigues¹; ¹Embraer S.A., Brazil
The objective of this paper is to show the application of Virtual Crack Closure Technique (VCCT) in typical fuselage and wing built-up panels, showing the relevance of contribution of different load components on crack opening. In particular, the study will show through analysis and validation with experiments the influence on the crack propagation results generated by the local bending induced by the failure of a reinforcement. The local bending is even more relevant for thick panels, and this aspect will be addressed in this paper. The use of robust methodologies in structural analysis improves the aircraft structural integrity.rn