Response of Space Structures Under Sudden Local Damageby Ramesh B. Malla, Univ of Connecticut, Storrs, United States,
Baihai Wang, Univ of Connecticut, Storrs, United States,
Abstract: Damages to space structures can come from such adverse events as impact by foreign objects, docking, drastic temperature changes, and exposure to radiation and charged particles. This study presents a method to determine effects of sudden member failure on dynamic response of a truss-type space structure. Emphasis has been given to determine the effects of the dynamic nature of a member failure on the response. A planar cantilever truss was analyzed. Results form the study show that the dynamic effects due to sudden member failure on the overall structural response measured in terms of natural frequencies, mode shapes, deformations, and stresses can be significant.
Subject Headings: Failure analysis | Space structures | Space frames | Structural failures | Damage (structural) | Space truss
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