Abstract
Over the past two decades there has been considerable need for reliable lightweight structures for various space applications, ranging from communication antennae to that of building the first space station. The impetus for research in the field of deployable space structures has been due to the volume constraint imposed by current launch vehicles.
This paper describes the design and development of an advanced composite self deployable structural element (SDSE). In its predeployed state, the SDSE is a collapsed structural element designed to achieve minimum volume configuration. This makes it beneficial for space applications as it can be folded and compactly stowed in a space transport vehicle. Ideally, this structure will deploy at the site without human intervention. The SDSE is flexible in its unheated state. It is formed of a core of thermally activated expanding foam or pressurizing agent, an internal bladder, a load carrying member of braided advanced composite material, and an outer retaining jacket. The core material, upon hearing with a resistance wire, internally pressurizes the structural element which leads to deployment. The same heat source also cures the advanced composite material.
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