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WrapToR composite truss structures: Measurement and modelling of mechanical response

机译：Wrador Composite Truss结构：机械反应的测量和建模

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摘要

Wrapped Tow Reinforced (WrapToR) trusses are ultra-efficient structures that are produced from composite materials using a novel winding process. In this study, a structural model based on the stiffness method is developed for the novel truss configuration to predict the pre-failure mechanical response. To validate the model, the mechanical response of the structures is experimentally investigated to a high level of detail using a series of three-point bend tests. Results of the tests highlight the importance of modelling behaviour of the truss joints due to both internal joint deformations and their effect on load transfer between members. The results also show that the developed model can predict deflections and strains to a reasonable accuracy across a range of truss configurations.
机译：包裹的拖曳增强（Wradgor）桁架是超高效的结构，这些结构是通过使用新型绕组过程的复合材料制成的。在该研究中，开发了一种基于刚度方法的结构模型，用于预测失效前的机械响应。为了验证模型，使用一系列三点弯曲试验，实验研究了结构的机械响应到高水平的细节。由于内部关节变形以及构件之间的负荷转移的影响，测试结果突出了桁架接头的建模行为的重要性。结果还表明，开发的模型可以在一系列桁架配置中预测偏转和菌株到合理的精度。

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