DTIC ADA233939: Scaling Effects in the Static pdf

DTIC ADA233939: Scaling Effects in the Static

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Scaling effects in the large deflection response of graphite-epoxy composite beams was investigated. Eight different scale model beams ranging from 1/6 to full scale were subjected to an eccentric axial compressive load to promote large bending deformations and failures. Beams having laminate stacking sequences including unidirectional, angle ply, cross ply, and quasi-isotropic were tested to examine a wide variety of composite response and failure modes. The model beams were loaded under scaled test conditions until catastrophic failure. Data acquired included load, end displacement, and strain measurements, and qualitative failure measurements. The experimental data is compared to a large rotation beam analysis and a finite element model analysis

• Creator/s: Defense Technical Information Center
• Date: 6/1/1989
• Year: 1989
• Book Topics/Themes: DTIC Archive, Jackson, Karen E, NATIONAL AERONAUTICS AND SPACE ADMIN LANGLEY RESEARCH CENTER HAMPTON VA, *MATHEMATICAL MODELS, EXPERIMENTAL DATA, COMPOSITE MATERIALS, LAMINATES, FINITE ELEMENT ANALYSIS, LOADS(FORCES), BEAMS(STRUCTURAL), DEFORMATION, DISPLACEMENT, FAILURE, COMPOSITE STRUCTURES, BENDING, SEQUENCES, RESPONSE, SCALING FACTOR, AXES, EPOXY COMPOUNDS, CATASTROPHIC CONDITIONS, GRAPHITED MATERIALS, ROTATION, STACKING, COMPRESSIVE PROPERTIES, ECCENTRICITY, MEASUREMENT

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