Parametric Analysis of Nonlinear Behavior of Tubular Members under Lateral Dynamic Loads

Document Type : Research Article

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Abstract

Non-linear behavior of tubular members with axial pre-load is studied against dynamic lateral impact. Nonlinear behavior of these members would be due to material non-linearity (NLM) or geometric non-linearity (NLG). Study of the curves of load displacement of arbitrary tubular member by analytical solutions indicates that changes in parameters such as pipe thickness, magnitude of axial pre-loading, and end conditions of the member under study has significant affect on their residual strength subject to application of dynamic lateral impact. Based on this analysis, a reliable method for calculation of residual strength of tubular member is proposed. The results of the comparison between the two methods using quasi-static and dynamic analyses are shown in a diagram. In addition, to measure the reliability of the model it has been validated using available test results from the literatures.

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References

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