Effect of machining conditions on the trimming damage in composite laminates induced by out-of-plane shearing

Shigeki Yashiro, Ryuji Ono, Keiji Ogi

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

Fast machining is essential for mass production of composite structures, and out-of-plane shearing, also known as die cutting, is appropriate for trimming. Nevertheless, little is known about shearing of polymer-matrix composites. This study was done to investigate the damaging impact of shearing conditions on carbon fiber reinforced plastic (CFRP) laminates. The clearance and temperature affected the damage progress, while the cutting speed in the tested range had negligible effect. In cross-ply laminates, delamination and matrix cracks first appeared in a narrow shearing zone, and with further loading longitudinal plies broke at the dies’ edges. Although delamination occurred only in a narrow shear-stress concentrated zone in the case of a small clearance, it was significant for a large clearance, owing to the local bending deformation. A temperature slightly lower than the glass transition temperature narrowed the delamination area, owing to the increase in the interlaminar fracture toughness as well as insignificant strength degradation of the matrix.

本文言語英語
ページ(範囲)463-475
ページ数13
ジャーナルJournal of Materials Processing Technology
271
DOI
出版ステータス出版済み - 9 1 2019

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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