elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

The Influence of Materials on the Development of Sailplane Design

Kensche, C. (2003) The Influence of Materials on the Development of Sailplane Design. The next 100 Years' - International Air & Space Symposium and Exhibition, Dayton, Ohio, 14-17 Juli 2003.

Full text not available from this repository.

Abstract

The evolution of sailplanes in the past century is a product of both the progress in aerodynamics as well as the usage of new materials including constructive and technological solutions. The focus of this contribution is to highlight the importance of new materials and their application in the development of sailplane design. Three periods are classified. The first beginning with the flights of O. Lilienthal in 1891 is characterized by wire braced, cloth covered willow, bamboo and wood constructions of the wings with thin airfoils. New possibilities were discovered in 1921 with the Vampyr where by means of plywood a cantilever single beam design including a D-tube leading edge of high torsion stiffness allowed a thick airfoil wing without wire braces. In this period also some important metal designs can be found. The end of this period which culminated in the HKS and KA6 constructions was rung in with the Phoenix in 1957 which was completely designed in glass fiber reinforced plastics (GFRP). The introduction of high strength and high modulus carbon fibers finally enabled further possibilities to increase the glider per-formance. Composite materials have been dominating the development of sailplanes now for nearly 50 years. Nevertheless, there are still problems to be solved such as the missing confidence in the very good fatigue properties of FRP. Thus, also lifetime certification and evaluation items are discussed, too.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:The Influence of Materials on the Development of Sailplane Design
Authors:
AuthorsInstitution or Email of Authors
Kensche, C.UNSPECIFIED
Date:2003
Status:Published
Event Title:The next 100 Years' - International Air & Space Symposium and Exhibition, Dayton, Ohio, 14-17 Juli 2003
Organizer:The American Institute of Aeronautics and Astronautics (AIAA) and the International Council of the Aeronautical Sciences (ICAS)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):UNSPECIFIED
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 13:14

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.