{
  "abstract": "Conventional fabrication processes for fiber-reinforced composites are complex and stepwise, limiting their application in blast protection engineering. In this study, KH550 surface-modified glass fiber powder (1.5 wt%) was incorporated into a polyurea matrix, and a homogeneous glass fiber-reinforced polyurea (GFRPU) composite was successfully synthesized via an optimized one-step spray process. The strain-rate-dependent mechanical behavior (0.01–100 s−1), fracture mechanisms, molecular structure, and blast mitigation performance of GFRPU were systematically investigated through mechanical testing, SEM, FTIR, 75 g TNT contact explosion tests, and calibrated and partially verified finite element simulations. Results show that the surface-modified fibers form chemical crosslinks with the matrix, shortening the N–H hydrogen bond length from 3.023 Å to 2.983 Å and increasing the hydrogen bonding degree of the urea carbonyl region from 80.0% to 84.1%, thereby enhancing structural ordering and strength. At a strain rate of 100 s−1, the tensile strength of GFRPU reaches 50.27 MPa, 26% higher than that of the polyurea matrix. Under contact explosion, a 4 mm back-face GFRPU coating reduced the center-point deflection of the steel plate by 31.6% and suppressed brittle cracking, with interfacial debonding and coating tensile failure as the dominant failure modes. Considering protective efficiency and structural safety, 4 mm is recommended as the optimal coating thickness.",
  "abstract_shown": true,
  "affiliations": [
    "Nanchang Institute of Science and Technology, Nanchang 330108, China",
    "School of Aeronautics Mechanical and Electrical Engineering, Jiangxi Flight University, Nanchang 330014, China",
    "State Key Laboratory of Precision Blasting, Jianghan University, Wuhan 430056, China",
    "Hubei Key Laboratory of Blasting Engineering, Jianghan University, Wuhan 430056, China",
    "Department of Engineering Technology and Applications, Army Infantry Academy of PLA, Nanchang 330103, China",
    "School of Civil Engineering, Qingdao University of Technology, Qingdao 266525, China",
    "Qingdao Shamu Advanced Material Co., Ltd., Qingdao 266108, China"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 10,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Xiaojun Ye"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Quanmin Xie"
    },
    {
      "affs": [
        0
      ],
      "name": "Dongxian Ye"
    },
    {
      "affs": [
        1
      ],
      "name": "Rui Zhang",
      "orcid": "0000-0001-7052-2486"
    },
    {
      "affs": [
        4
      ],
      "name": "Fuyin Gao"
    },
    {
      "affs": [
        1
      ],
      "name": "Yanshu Fu"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Yongkang Xu"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Yaoli Hu"
    },
    {
      "affs": [
        5
      ],
      "name": "Weibo Huang"
    },
    {
      "affs": [
        6
      ],
      "name": "Longqiang Liang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1tvrhk7qjcyj4.bib",
  "cited_by": 0,
  "doi": "10.3390/polym18202602",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13708954/?tool=EBI",
  "id": "1tvrhk7qjcyj4",
  "issns": [
    "2073-4360"
  ],
  "landing_url": "https://www.mdpi.com/2073-4360/18/20/2602",
  "language": "eng",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2205|Structural Response to Dynamic Loads"
    ]
  ],
  "openalex": "W7223185297",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13708954/pdf/?tool=EBI",
  "pmcid": "PMC13708954",
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/1tvrhk7qjcyj4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:44Z",
      "native_id": "10.3390/polym18202602",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4360/18/20/2602"
    },
    {
      "first_seen": "2026-10-30T12:21:40Z",
      "native_id": "PMC:PMC13708954",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13708954"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2073-4360",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Study on Damage Mechanisms and Blast Mitigation of GFRPU and Coated Steel Plates",
  "title_text": "Study on Damage Mechanisms and Blast Mitigation of GFRPU and Coated Steel Plates",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:21:40Z",
  "url": "https://research.draconitic.com/paper/1tvrhk7qjcyj4",
  "venue": "Polymers",
  "versions": []
}