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Thermal preconditioning study for bolted tension joints in pultruded GRP plate

机译:拉挤GRP板螺栓拉伸接头的热预处理研究。

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Thermocouples have been used to monitor the time versus temperature rise response at the centre of four sizes of pultruded GRP plate used in bolted tension joints in order to demonstrate that all of the GRP plate is at the required temperature prior to testing the joints to failure. A simple one-dimensional finite element (FE) model has also been developed and used to predict time versus temperature rise response. The experimental and numerical results confirm that a thermal preconditioning period of 30 min duration is more than adequate for all of the pultruded GRP plates to achieve the actual test temperatures of 40, 60 and 80℃.
机译:热电偶已用于监视螺栓拉伸接头中使用的四种尺寸的拉挤GRP板中心的时间与温度上升响应的关系,以证明在测试接头失效之前所有GRP板均处于所需温度。还开发了一种简单的一维有限元(FE)模型,并将其用于预测时间对温度上升响应。实验和数值结果证实,对于所有拉挤的GRP板而言,持续30分钟的热预处理时间足以达到40、60和80℃的实际测试温度。

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