Sequence of damage events occurring in the course of low energy impact

Piotr Czarnocki , Tomasz Zagrajek

Abstract

Finite element simulation was carried out to better understand damage formation in CF/epoxy plate in the course of a low velocity 8J impact. The plate under investigation was of [+30/−30]s lay-up. To validate the numerical results a drop test was carried out with the help of a drop tower. The interlaminar damage extent was determined with the help of C-scan. Comparison between the numerical and experimental results showed a good quantitative agreement concerning contact force time history, however, the amount of dissipated energy determined based on the numerical simulation was lower than that from the experiment,consistently, the damage extent determined based on numerical simulation was smaller than that determined by C-scan. Nevertheless, characteristic points on the plot representing contact force time history could be related to the particular damage mechanism onsets and their actions.
Author Piotr Czarnocki ITLMS
Piotr Czarnocki,,
- The Institute of Aeronautics and Applied Mechanics
, Tomasz Zagrajek ITLMS
Tomasz Zagrajek,,
- The Institute of Aeronautics and Applied Mechanics
Journal seriesArchives of Civil and Mechanical Engineering, ISSN 1644-9665
Issue year2016
Vol16
No4
Pages825-834
Publication size in sheets0.5
Keywords in EnglishImpact, Laminates, Damage, Delamination, Simulation
DOIDOI:10.1016/j.acme.2016.05.002
Languageen angielski
Score (nominal)30
ScoreMinisterial score [Punktacja MNiSW] = 30.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) [Punktacja MNiSW (2013-2016)] = 30.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor [Impact Factor WoS]: 2016 = 2.216 (2) - 2016=1.922 (5)
Citation count*1 (2018-06-12)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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