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Full text release has been delayed at the author's request until May 10, 2026

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Effect of Cohesive Properties on the Impact Behavior of Hybrid Sandwich Composites: A Finite Element Study

Mridha, Rafsun Hossain
http://rave.ohiolink.edu/etdc/view?acc_num=akron1744305641464171

Abstract Details

2025, Master of Science, University of Akron, Mechanical Engineering.
This study investigates the effect of cohesive properties on the impact behavior of hybrid sandwich composites through finite element analysis (FEA) validated with experimental data. Two hybrid configurations, GC (GFRP outer layers) and CG (CFRP outer layers), were analyzed under varying cohesive strength, stiffness, and fracture energy, using Hashin and Strain-Based (SB) failure criteria. The results demonstrate that SB provides better agreement with experiments, particularly in capturing progressive failure and post-impact deformation, while Hashin overpredicts peak force and delays failure initiation. The findings reveal that cohesive strength primarily governs peak force and permanent deformation, while fracture energy significantly influences energy dissipation. Additionally, stacking sequence plays a crucial role, with CFRP-dominant configurations (CG) absorbing more energy, whereas alternating hybrid layups (GCGC, CGCG) improve load distribution and reduce residual damage. These insights provide guidelines for optimizing cohesive properties and stacking sequences to enhance the impact resistance of hybrid composites for aerospace, naval, and industrial applications.
Dr. Kwek Tze Tan (Advisor)
Dr. Hyeonu Heo (Committee Member)
Dr. Tanmay Tiwari (Committee Member)
87 p.
Materials Science; Mechanical Engineering
Cohesive elements, Cohesive zone modeling, Hybrid sandwich composites, Low-velocity impact, Finite element analysis.

Recommended Citations

Citations

  • Mridha, R. H. (2025). Effect of Cohesive Properties on the Impact Behavior of Hybrid Sandwich Composites: A Finite Element Study [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1744305641464171

    APA Style (7th edition)

  • Mridha, Rafsun Hossain. Effect of Cohesive Properties on the Impact Behavior of Hybrid Sandwich Composites: A Finite Element Study. 2025. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1744305641464171.

    MLA Style (8th edition)

  • Mridha, Rafsun Hossain. "Effect of Cohesive Properties on the Impact Behavior of Hybrid Sandwich Composites: A Finite Element Study." Master's thesis, University of Akron, 2025. http://rave.ohiolink.edu/etdc/view?acc_num=akron1744305641464171

    Chicago Manual of Style (17th edition)

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© 2025, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.
Release 3.2.12