Mechanical Behaviors of Flax Fiber-Reinforced Composites at Different Strain Rates and Rate-Dependent Constitutive Model.

ABSTRACT: Flax fiber-reinforced composites (FFRCs) exhibit excellent environmentally friendly qualities, such as light weight, low cost, recyclability, and excellent mechanical properties. Understanding the dynamic mechanical behavior of FFRCs could broaden their potential applications in lightweight, crashworthy, and impact-critical structures. This study presents a study on the fabrication of FFRCs by vacuum-assisted resin infusion. The dynamic stress⁻strain responses of the fabricated specimens at strain rates ranging from 0.006 s-1 to 2200 s-1 were evaluated using quasi-static tests and the Split⁻Hopkinson pressure bar (SHPB). The results indicated that the FFRC exhibited superior strain rate sensitivity. Final deformation photographs and scanning electron micrographs clearly revealed the damage

SUBMITTER: Hu D 

PROVIDER: S-EPMC6471640 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature