Characterization of high-velocity impact damage in CFRP laminates: Part i - Experiment

Shigeki Yashiro, Keiji Ogi, Tsukasa Nakamura, Akinori Yoshimura

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

This study investigated mechanisms of the extension of high-velocity impact damage in CFRP laminates. To this end, damage states due to near-perforation impact were studied in detail. This study consists of two parts. Part I presents the experiment results of high-velocity impact tests for CFRPs with specified stacking sequences. A crater and splits were observed on the impacted surface, while multiple splits with fiber breaks extended on the back surface. The cross-section beneath the impact point included catastrophic ply failure with extensive fiber breaks. Impacted specimens also exhibited a particular delamination pattern consisting of pairs of symmetric fan-shaped delaminations emanating from to the impact point and elongated delamination along the cracks in the bottom ply. These damage patterns were common to all of the stacking sequences. Part II of this study presents a numerical analysis of high-velocity impact based on smoothed-particle hydrodynamics and discusses damage extension mechanisms.

Original languageEnglish
Pages (from-to)93-100
Number of pages8
JournalComposites Part A: Applied Science and Manufacturing
Volume48
Issue number1
DOIs
Publication statusPublished - 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Characterization of high-velocity impact damage in CFRP laminates: Part i - Experiment'. Together they form a unique fingerprint.

Cite this