Abstract In this study, the tensile and compressive performance of adhesively bonded single-lap joint of green composites (bamboo fiber/Polylactic acid (PLA)) has been experimentally investigated. The green composites have been fabricated by film stacking method in compression molding. The important factors affecting the performance of the adhesively bonded joint such as overlapping length of the specimen (20, 40, and 60 mm) and width of the specimen (20, 26, and 32 mm) have been studied for epoxy, polyurethane, and parent polymer (PLA) used as bonding materials for joining of developed green composites. From the experimental analysis, it has been found that the higher levels of width and overlapping length of the joint specimen offer better tensile and compressive strength of the joint specimen. The failure loads of the joint specimens have been found to be more for epoxy as compared to PLA and polyurethane used for the purpose of joining. The relative significance of the chosen input parameters has also been found by performing analysis of variance (ANOVA). The most significant parameter has been found to be the width of the specimen for tensile failure load and type of bonding material for compressive failure load. The failure mode analysis has revealed that adhesive and cohesive failures are the major mode of failure of the adhesively bonded green composites under tensile and compressive loadings.

中文翻译：

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绿色复合材料单搭接粘接接头拉伸和压缩破坏载荷的试验分析

摘要 在这项研究中，对绿色复合材料（竹纤维/聚乳酸（PLA））胶粘单搭接接头的拉伸和压缩性能进行了实验研究。绿色复合材料是通过压缩成型中的薄膜堆叠方法制造的。已经研究了影响胶粘接头性能的重要因素，例如试样的重叠长度（20、40 和 60 毫米）和试样的宽度（20、26 和 32 毫米），用于环氧树脂、聚氨酯和母体聚合物 (PLA) 用作粘合材料，用于连接开发的绿色复合材料。从实验分析中发现，接头试样的宽度和重叠长度越高，接头试样的拉伸和压缩强度越好。与用于连接目的的 PLA 和聚氨酯相比，环氧树脂的接头试样的破坏载荷更大。通过执行方差分析 (ANOVA) 还发现了所选输入参数的相对重要性。已发现最重要的参数是拉伸破坏载荷的试样宽度和压缩破坏载荷的粘合材料类型。失效模式分析表明，在拉伸和压缩载荷下，粘合性和内聚性失效是粘合粘合的生复合材料的主要失效模式。已发现最重要的参数是拉伸破坏载荷的试样宽度和压缩破坏载荷的粘合材料类型。失效模式分析表明，在拉伸和压缩载荷下，粘合性和内聚性失效是粘合粘合的生复合材料的主要失效模式。已发现最重要的参数是拉伸破坏载荷的试样宽度和压缩破坏载荷的粘合材料类型。失效模式分析表明，在拉伸和压缩载荷下，粘合性和内聚性失效是粘合粘合的生复合材料的主要失效模式。