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首页> 外文期刊>Review of Agricultural Entomology >Replacing stitching and weaving in natural fiber reinforcement manufacturing, part 1: mechanical behavior of unidirectional flax fiber composites
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Replacing stitching and weaving in natural fiber reinforcement manufacturing, part 1: mechanical behavior of unidirectional flax fiber composites

机译：天然纤维增强材料制造中的缝合和编织替换，第1部分：单向亚麻纤维复合材料的机械性能

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摘要

This paper presents a novel natural fiber reinforcement manufacturing approach, based on a combination of short flax fibers and unidirectional flax yarns inspired by a papermaking process. The short fibers are used as a binder, replacing weaving and stitching used in textile-based reinforcements. The tensile and compressive properties of three different composites, in both longitudinal and transverse directions, were studied in order to highlight the effect of the mat binder. The presence of short fibers in the composite resulted in a slight decrease of about 10% of the longitudinal tensile modulus and strength. However, the transverse tensile properties are almost doubled. A similar trend was obtained in compression loading, where the addition of short fibers decreases the compressive modulus and strength. Particularly, the compressive strength in the yarn direction was more influenced by the presence of short fibers and was reduced by 30% compared to a decrease of 10% in the case of tensile loading. Here again, the transverse modulus was slightly increased, even if no effect was observed on the transverse compressive strength. The presence of the short fibers also shows a significant positive effect on the fracture behavior in tensile loading. The fractured surface is more uniform and presents a reduction of the splitting and crack formation along the unidirectional yarn direction.
机译：本文提出了一种新颖的天然纤维增强材料制造方法，该方法是将短亚麻纤维和单向亚麻纱线结合起来，并受到造纸工艺的启发。短纤维用作粘合剂，代替了织物增强材料中使用的编织和缝合。研究了三种不同复合材料在纵向和横向上的拉伸和压缩性能，以突出垫层粘合剂的作用。复合物中短纤维的存在导致纵向拉伸模量和强度略微降低约10％。但是，横向拉伸性能几乎翻了一番。在压缩载荷中获得了类似的趋势，其中添加短纤维会降低压缩模量和强度。特别地，在纱线方向上的抗压强度受短纤维的存在的影响更大，与在拉伸载荷的情况下降低10％相比，降低了30％。即使没有观察到横向抗压强度的影响，横向模量还是略有增加。短纤维的存在还对拉伸载荷下的断裂行为表现出显着的积极影响。断裂的表面更均匀，并减少了沿单向纱线方向的开裂和裂纹形成。

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