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Shear Structural Response of Double Lap Joints for Composite Pultruded Elements

机译:复合拉挤件双搭接接头的剪切结构响应

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This paper presents the outcomes of analytical and numerical investigations regarding the behavior of double lap shear joint composed of pultruded GFRP profiles and structural epoxy adhesive. The shear and the peeling stresses along the bond length have been evaluated and graphically plotted. Specific points at the top interface between the adhesive and the GFRP composite elements were established in order to closely record the stress and strain variations. The ultimate values and the patterns of the graphical distributions of the stresses indicates that the shear and the peeling stresses obtained by analytical methods are in good agreement with those calculated by numerical methods, except for the peak values near the free edge of the bond length.
机译:本文介绍了由拉挤的GFRP型材和结构环氧胶组成的双搭接剪切接头的行为的分析和数值研究的结果。沿粘结长度的剪切应力和剥离应力已得到评估并以图形方式绘制。为了紧密记录应力和应变变化,在粘合剂和GFRP复合材料之间的顶部界面处确定了特定点。极限值和应力的图形分布图表明,通过分析方法获得的剪切应力和剥离应力与通过数值方法计算得到的剪切应力和剥离应力与粘合方法的自由应力边缘附近的峰值相符,与通过数值方法计算的应力和剥离应力具有良好的一致性。

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