An experimental method for dynamic delamination analysis of composite materials by impact bending

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

An improved experimental method for characterizing dynamic delamination growth in composite structures has been developed and verified using high speed photography and explicit finite element simulation. The method is based on a three-point bending device. End notch flexure carbon fiber composite beam specimens were subjected to both quasi-static and impact rates of Mode II loading. The experimental results showed no significant strain rate dependency of the delamination fracture toughness. This important result complements the scarce and conflicting data available in the literature, and serves as a reference for calibration of numerical modeling strategies.

Details

Original languageEnglish
Pages (from-to)413-421
Number of pages9
JournalMechanics of Advanced Materials and Structures
Volume22
Issue number5
Publication statusPublished - 23 Dec 2014
Peer-reviewedYes

External IDs

ORCID /0000-0003-2653-7546/work/142249370

Keywords

Keywords

  • bending, composites, delamination, fracture toughness, impact, wave analysis