Scaling Effects in the Impact Response of Graphite-Epoxy Composite Beams U.S. Army Aviation Research and Technology Activity Langley Research Center Hampton, VA

Format:

Conference/Event

Author/Creator:

Jackson, Karen E., author.

Conference Name:

General Aviation Aircraft Meeting and Exposition (1989-04-11 : Wichita, Kansas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

In support of crashworthiness studies on composite airframes and substructure, an experimental and analytical study was conducted to characterize size effects in the large deflection response of scale model graphite-epoxy beams subjected to impact. Scale model beams of 1/2, 2/3, 3/4, 5/6, and full scale were constructed of four different laminate stacking sequences including unidirectional, angle ply, cross ply, and quasi-isotropic. The beam specimens were subjected to eccentric axial impact loads which were scaled to provide homologous beam responses. Comparisons of the load and strain time histories between the scale model beams and the prototype should verify the scale law and demonstrate the use of scale model testing for determining impact behavior of composite structures. The nonlinear structural analysis finite element program DYCAST (DYnamic Crash Analysis of STructures) was used to model the beam response. DYCAST analysis predictions of beam strain response are compared to experimental data and the results are presented

Notes:

Vendor supplied data

Publisher Number:

891014

Access Restriction:

Restricted for use by site license