Warping torsion in thin‐walled open section beams using the semiloof beam element

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Abstract
Many structural members including metallic, reinforced polymer and concrete members must be modelled, in the simplest approximation, as thin‐walled beams whose cross‐sections exhibit significant, out‐of‐plane warping owing to torsion. The elastic capabilities of the semiloof beam element are extended to include warping torsion of thin‐walled open section beams. The performance of the extended element is compared with that of the original formulation.

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