Abstract
Comparative analysis has been performed on the mechanical properties of hollow and solid polyester monofilament with identical external diameter. Tensile test of hollow polyester monofilament was conducted to study the influence of hollow core and the manufacturing method on the tensile fracture mechanism of hollow monofilament. The compressive properties of hollow monofilament were determined to provide a bundle-compression method to study the behavior of hollow polyester monofilament under axial compressive loading and compare with solid one. The results show that the tensile property of the hollow monofilament has smaller breaking force and higher breaking elongation than solid monofilament in case of identical external diameter. Under compression loading, the solid monofilament show better compressive properties than hollow one with identical diameter. The hollow core only affects the values of compressive strain and stress, but it has no effect on the compression and deformation mechanism. The study results also show that the polyester monofilament can show better mechanical properties than the solid polyester monofilament for the same weight. This study can help to design the lighter textile materials with the hollow polyester monofilament.
Highlights
Hollow structures are materials with a defined boundary and an interior cavity
The result showed that hollow fiber laminates had less damaged area and better energy absorption properties compared with solid ones
Hucker et al.[6,7,8] studied the experimental evaluation of unidirectional hollow glass fiber/epoxy composites under compressive loading and investigated into the behavior of hollow glass fiber bundles under compressive loading to further show the advantages of HGF in enhancing the performance of composites
Summary
Hollow structures are materials with a defined boundary and an interior cavity. They have low density, high pore volume, light mass, and charge-transport length.[1,2] Hollow fiber is such fiber with hollow structure, including simple hollow fiber and intricate hollow fiber. The result showed that hollow fiber laminates had less damaged area and better energy absorption properties compared with solid ones. Hollow glass fiber gave higher stiffness and compressive strength than solid one. The breaking force of hollow fiber is smaller than solid ones, but the tensile strength is higher by 95%.
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