Abstract
Abstract In this paper, two types of natural fibers (jute fiber and cotton fiber) were arranged in different cross-section positions on natural fiber-reinforced epoxy composites (NFR-EC) by using a novel hole arrangement–threading–glue filling method. A three-point bending experiment was carried out to reveal the flexural response, failure types, and energy absorption properties of NFR-EC. An analytical model was applied to analyze the force distribution of natural fibers and epoxy in NFR-EC. Results showed that the hole arrangement–threading–glue filling method successfully manufactured an NFR-EC, which can adjust the volume fraction and cross-section position of natural fibers and the cross-sectional shape of NFR-EC. The addition of fibers below the neutral axis of the cross-section significantly improved the flexural properties and energy absorption capacity of NFR-EC.
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