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Finite element analysis of stiffened composite panels subjected by low-velocity impact

  • Wen Chao Zhang*
  • , Yuan Guo
  • , Zhi Dong Guan
  • , Xia Guo
  • , Wei He
  • , Ri Ming Tan
  • *Corresponding author for this work
  • Beihang University
  • Aerospace Technology Institute of Specialty Materials and Processes

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, the low-velocity performance of stiffened composite panels is investigated experimentally and numerically. In order to illustrate the effect of the stiffener, a number of plain laminates with same lay-up of the skin were impacted in various energies. Progressive damage models based on continuum damage mechanics (CDM) were used in combination with cohesive interface elements to predict the structural response and fracture mechanics of stiffened composite panels. The constitutive mode was implemented into the ABAQUS/Explicit FE code by user-defined material subroutines (VUMAT). The developed FE model made a good prediction about the structural impact response of stiffened panels over the rang of impact energies examined. Very good agreement was achieved between the extent of damage predicted around the impact site and the damage detected by non-destructive technique (NDT) ultrasonic C-scan of the panels.

Original languageEnglish
Title of host publicationMachine Tool Technology, Mechatronics and Information Engineering
EditorsZhongmin Wang, Liangyu Guo, Jianming Tan, Dongfang Yang, Dongfang Yang, Kun Yang, Dongfang Yang, Dongfang Yang, Dongfang Yang
PublisherTrans Tech Publications Ltd
Pages4726-4730
Number of pages5
ISBN (Electronic)9783038352464
DOIs
StatePublished - 2014
EventInternational Conference on Machine Tool Technology and Mechatronics Engineering, ICMTTME 2014 - Guilin, China
Duration: 22 Jun 201423 Jun 2014

Publication series

NameApplied Mechanics and Materials
Volume644-650
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

ConferenceInternational Conference on Machine Tool Technology and Mechatronics Engineering, ICMTTME 2014
Country/TerritoryChina
CityGuilin
Period22/06/1423/06/14

Keywords

  • Continuum damage
  • Finite element analysis (FEA)
  • Interface elements
  • Low-velocity impact
  • Stiffened composite panels

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