TY - JOUR
T1 - Mode-I fracture control of unidirectional laminated composites using MFC actuators
AU - Kaushik, Vikas
AU - Siddgonde, Nagappa
AU - Narita, Fumio
AU - Ghosh, Anup
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors would like to acknowledge Aeronautics Research and Development Board (AR&DB), DRDO for their financial support (Grant no—ARDB/01/1051918/M/I) and Advanced Composite Division, CSIR-National Aerospace Laboratory, Bangalore for their technical support.
Publisher Copyright:
© The Author(s) 2022.
PY - 2022/11
Y1 - 2022/11
N2 - 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.
AB - 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.
KW - Extended Isogeometric analysis (XIGA)
KW - Macro fiber composite (MFC) actuator
KW - cohesive zone modeling
KW - crack suppression
KW - pin force model
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U2 - 10.1177/1045389X221088032
DO - 10.1177/1045389X221088032
M3 - Article
AN - SCOPUS:85127801837
SN - 1045-389X
VL - 33
SP - 2440
EP - 2453
JO - Journal of Intelligent Material Systems and Structures
JF - Journal of Intelligent Material Systems and Structures
IS - 19
ER -