M. Adeel
Study on Damage Tolerance Behavior of Integrally Stiffened Panel and Conventional Stiffened Panel
1026 - 1030
2008
2
9
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/579
https://publications.waset.org/vol/21
World Academy of Science, Engineering and Technology
The damage tolerance behavior of integrally and
conventional stiffened panel is investigated based on the fracture
mechanics and finite element analysis. The load bearing capability
and crack growth characteristic of both types of the stiffened panels
having same configuration subjected to distributed tensile load is
examined in this paper. A fourteenstringer stiffened panel is
analyzed for a central skin crack propagating towards the adjacent
stringers. Stress intensity factors and fatigue crack propagation rates
of both types of the stiffened panels are then compared. The analysis
results show that integral stiffening causes higher stress intensity
factor than conventional stiffened panel as the crack tip passes
through the stringer and the integrally stiffened panel has less load
bearing capability than the riveted stiffened panel.
Open Science Index 21, 2008