The Monolithic CFRP-Substructure with Corrugated V-Spars an Alternative to Sandwich Constructions
The classical substructure concept for airfoils consists of spar and rib elements. For thin airfoils, sandwich constructions are most commonly used. As an alternative, a monolithic CFRP-substructure was developed, featuring corrugated spars in a V-shaped arrangement. The corrugated CFRP-substructure (CSS) combines the spar and rib function in one element and allows an adaption of its dimensions to the structural loads without manufacturing limitations. The producibility and structural performance of this concept was verified in component tests.
KeywordsShear Strength Shear Strength Test Corrugate Structure Sandwich Construction Thin Airfoil
Unable to display preview. Download preview PDF.
- 1.G. Porsche et.al., Report No. ET3–2175/82, VFW GmbHGoogle Scholar
- 2.S.P. Timoshenko and J.M. Gere, “Theory of Elastic Stability”, McGraw-Hill Book Company, 2nd edition, 1961Google Scholar
- 3.D.H. Emero and L. Spunt, J. Aircraft, Vol. 3, No. 2, 1966Google Scholar
- 4.J.E. Ashton and J.M. Whitney, “Theory of Laminated Plates”, Technomic Publishing Co., Inc., Stamford, 1970Google Scholar
- 5.J. Lemmer, Report No. TN-FE 212–22/77, MBB GmbHGoogle Scholar