Polymer/carbon pin through thickness reinforcement. (14th September 2022)

• Record Type: Journal Article
• Authors: Moses, William; Dooher, Thomas; McIlhagger, Alistair; Archer, Edward
• Is Part Of: Plastics, rubber, and composites. Volume 51:Number 8(2022)
• Page Start: 445
• Page End: 453
• Publication Date: 2022-09-14
• Subjects: Composites -- through thickness reinforcement -- interlaminar fracture toughness; Plastics -- Periodicals; Rubber -- Periodicals; Polymeric composites -- Periodicals; Polymer engineering -- Periodicals; 668.9
• DOI: 10.1080/14658011.2022.2108981
• Languages: English
• ISSNs: 1465-8011

Abstract

ABSTRACT: This work discusses the development and refinement of a polymer/fibre through thickness reinforcement method. Similar in initial concept to the traditional metalworking process of riveting this allows the manufacture of through thickness reinforced 2-D preforms. Pins are placed with deliberate excess length using a veterinary needle to part in-plane fibres. A lay-up with an array of pins is then subjected to a hot-press process flattening the pin ends resulting in a consolidated preform. This preform exhibits useful characteristics such as the ability to be cut and reformed to a new topology, with the through thickness reinforcement also conforming to the new shape. Refinements to the process introduce a multi-stage press process aimed at improving pin orientation with both original and refined processes evaluated using ASTM D5528 to determine the effect on interlaminar fracture toughness.