Evidence map›Paper›PMID 42356966›Full record

ArticlePolymers2026

Enhancing Bird-Strike Resistance of Aircraft Canopies via Nanoparticles: A Strain-Rate-Dependent Micromechanical (SRDM) and Numerical Approach.

Ferhat Demir, Ugur Simsek, Mesut Kirca

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In one paragraph

Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Ferhat DemirDepartment of Mechanical Engineering, Istanbul Technical University, 34437 Istanbul, Türkiye.
Ugur SimsekDepartment of Mechanical Engineering, Ozyegin University, 34794 Istanbul, Türkiye.ORCID 0000-0002-4405-5420
Mesut KircaDepartment of Mechanical Engineering, Istanbul Technical University, 34437 Istanbul, Türkiye.ORCID 0000-0003-4963-5472

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aerospace canopies require both high impact resistance and optical transparency for pilot safety and aerodynamic shielding. While polycarbonate (PC) and poly(methyl methacrylate) (PMMA) are widely utilized, their vulnerability to strain-rate-dependent failure during high-velocity bird strikes necessitates advanced reinforcement strategies. This study presents a multiscale computational framework for nanoparticle-reinforced PC nanocomposites. To circumvent the prohibitive computational costs of atomistic simulations, a novel Strain-Rate Dependent Micromechanics (SRDM) framework is proposed for silica-, alumina-, and zirconia-reinforced PC systems, integrating the Goldberg constitutive model with Halpin-Tsai micromechanics to generate rate-dependent stress-strain responses and calibrate Johnson-Cook (J-C) parameters for impact-scale simulations. Unlike conventional approaches relying on atomistic simulations or empirical fitting, the proposed framework directly links micromechanical nanocomposite modeling with finite element bird-strike simulations. Bird-strike analyses were performed in LS-DYNA on a generic fighter canopy model. The framework further incorporates literature-based optical transparency criteria considering nanoparticle size and refractive-index compatibility. Among the investigated nanofillers, silica-reinforced PC provided the most favorable response. At the most critical impact location, the maximum canopy deformation decreased from 118.6 mm for neat PC to 61.9 mm, corresponding to an approximately 48% reduction. Although the reinforced canopy exhibited a reduction in peak internal energy absorption from approximately 10 kJ to 5 kJ due to its increased stiffness and reduced plastic deformation, it provided improved deformation resistance and structural stability under impact loading. Overall, this work provides a computationally efficient framework for designing bird-strike-resistant transparent nanocomposite canopy structures using nanofiller systems previously reported in the literature to preserve optical transparency.

Indexed as

bird strikecanopymicromechanicsnanocompositepolymertransparency

Identifiers

PMID42356966
PMCPMC13306887

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.