Mode-I fracture control of unidirectional laminated composites using MFC actuators

Vikas Kaushik, Nagappa Siddgonde, Fumio Narita, Anup Ghosh

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This article presents an experimental and numerical investigation of Mode-I fracture control in aerospace grade unidirectional laminated composites (AS4/914) using the smart material approach. The P1 type macro fiber composites (MFC) actuators are selected for current research because of their higher free strain, high mechanical flexibility, and good blocking force. The opening mode (Mode-I) interlaminar fracture tests have been carried out on DCB specimens having surface bonded MFC actuator patches under the application of electric voltage within a range of 0–1500 V. These fracture control tests have been performed on pre-cracked (PC) and non pre-cracked (NPC) double cantilever beam specimens. The modified pin force model has been adopted for the evaluation of actuation forces in surface bonded MFC actuators. The XIGA-CZM based numerical formulation is utilized for numerical fracture modeling under electromechanical loading conditions. The MFC actuators have significant control over Mode-I fracture energy under the application of peak operating voltage. The numerical model using a modified pin force model in combination with XIGA-CZM based fracture model shows a good agreement with experimental observations.

Original languageEnglish
Pages (from-to)2440-2453
Number of pages14
JournalJournal of Intelligent Material Systems and Structures
Issue number19
Publication statusPublished - 2022 Nov


  • Extended Isogeometric analysis (XIGA)
  • Macro fiber composite (MFC) actuator
  • cohesive zone modeling
  • crack suppression
  • pin force model

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering


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