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under an applied load. A hollow core door is probably the most common example of a torsion box (stressed skin) structure. The principle is to use less material more efficiently. The torsion box uses the properties of its thin surfaces to carry the imposed loads primarily through tension while the
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close proximity of the enclosed core material compensates for the tendency of the opposite side to buckle under compression.
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Torsion boxes are used in the construction of structural insulated panels for houses, wooden
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two thin layers of material (skins) on either side of a lightweight core
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Williamson, Robert A. (1948). "Torsion-Bending
Stresses in Box Beams".
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How It Works: The
Illustrated Encyclopedia of Science and Technology
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The
Workbench: A Complete Guide to Creating Your Perfect Bench
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