In this study, the mechanical properties of a 2D woven novel hybrid laminate containing jute in the warp direction and Kevlar in the weft direction as reinforcement material is compared with four different weaving patterns. The hybrid laminates were tested for its tensile strength, elongation percentage and compressive strength. The results show that under the condition of identical composition of the matrix element, similarity in the thickness of the laminates and same stacking sequences, the weaving patterns exhibit profound influence on the tensile and compressive properties. The plain weaving pattern exhibited lowest tensile strength and compressive strength while the highest values for the two properties was observed from the hybrid laminate having twill weave pattern.
The hygroscopic properties of natural fibers tend to degrade the mechanical properties of composite materials. It is essential to investigate the influence of water absorption behavior on the mechanical properties of hybrid composite materials. In this study, hybrid laminate materials consisting of two different reinforcement materials, i.e., Kevlar fibers and jute fibers in the same layer, are considered. Hybrid laminates that have four different weaving patterns: plain weave, basket weave, twill weave, and the satin weave, are tested for their water absorption characteristics. The jute fiber is a naturally extracted fiber that is subjected to chemical treatment. A comparison of mechanical properties before and after treatment of the jute fibers is carried out. Mechanical properties such as tensile strength, compressive strength, flexural strength, impact strength, and hardness are tested. It is found that the mechanical properties improved after the treatment of the jute fibers. The twill weave pattern exhibited negligible defects compared to its counterparts. Chemical treatment of the jute fibers enabled less water being absorbed into the hybrid laminate materials. Mechanical properties improved after using chemically treated jute fibers as the reinforcement material in the hybrid laminate materials. It is concluded that the twill weave pattern and chemical treatment of the natural fibers improved the mechanical properties of the hybrid laminate materials.
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