A Pretensioning Concept for Relief of Critical Leading-Edge Thermal Stress. Technical Report NASA Technical Note TN D-3507, Research Engineering, NASA Dryden Flight Research Center

Jenkins, Jerald M. (1966) A Pretensioning Concept for Relief of Critical Leading-Edge Thermal Stress. Technical Report NASA Technical Note TN D-3507, Research Engineering, NASA Dryden Flight Research Center.

Full text available as: PDF - Requires Adobe Acrobat Reader or other PDF viewer.

Abstract

This paper introduces an analytical concept designed to relieve problems arising from the chordwise temperature gradients by reducing the magnitude of critical compressive stress in a leading edge. The reduction is accomplished by adding an internal column that applies an internal load to the ends of the leading edge. Equations that define the behavior of a pretensioned leading edge are developed and applied to a mathematical model to demonstrate the mechanics of using the concept.

EPrint Type:	Other
Keywords:	Critical loading, High temperature, Leading edges, Stagnation point, Thermal stresses
Subjects:	Aircraft/Project: Not Categorized (31 - 39) Engineering: (39) Structural Mechanics
ID Code:	823
Deposited On:	17 April 2006
Additional Information:	24 pages.