{
  "abstract": "This study presents a finite element framework for injection-molded short-fiber-reinforced thermoplastics that accounts for process-induced anisotropy, temperature, and moisture. A fully oriented material model was combined with fiber orientation tensors from injection-molding simulations to determine local orthotropic thermomechanical properties of PA66-GF30. The model employs micromechanical formulations for elasticity, strength, and thermal expansion. Matrix Young’s modulus, Poisson’s ratio, tensile strength, and coefficient of linear thermal expansion were identified simultaneously through inverse calibration using standardized composite data. Before calibration, prediction accuracy depended strongly on property, temperature, and moisture condition, with the largest deviations occurring at 120 °C and for conditioned-state tensile strength. After calibration, the directly targeted longitudinal Young’s modulus and tensile strength agreed with their targets within ±0.4%. The non-targeted transverse modulus and tensile strength agreed with auxiliary estimates within ±5.4% and ±1.9%, respectively. For the dry-as-molded state, the directional thermal expansion coefficients agreed with their calibration targets within ±5.2%. For the conditioned state, dry-as-molded thermal expansion values were adopted as targets, and deviations remained within ±5.9%. These results demonstrate successful calibration and internal consistency, while independent validation requires directional measurements not used during identification. The framework enables practical mapping of environment-dependent anisotropic properties in structural finite element analysis.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Mechanics, Materials and Biomedical Engineering, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-372 Wrocław, Poland",
    "Centre of Materials Science and Metal Forming, Wrocław University of Science and Technology, Łukasiewicza 5, 50-351 Wrocław, Poland"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Damian Bodniewicz"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Mirosław Bocian",
      "orcid": "0000-0003-0638-6832"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9c0kh1h0snj7j.bib",
  "cited_by": 0,
  "doi": "10.3390/polym18212768",
  "fulltext_url": null,
  "id": "9c0kh1h0snj7j",
  "issns": [
    "2073-4360"
  ],
  "landing_url": "https://www.mdpi.com/2073-4360/18/21/2768",
  "language": null,
  "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": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": "MDPI AG",
  "ris": "https://research.draconitic.com/paper/9c0kh1h0snj7j.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T00:21:22Z",
      "native_id": "10.3390/polym18212768",
      "source": "crossref",
      "url": "https://www.mdpi.com/2073-4360/18/21/2768"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "issn:2073-4360",
      "subfield": "materials-polymers"
    }
  ],
  "title": "FEA Framework for Short-Fiber-Reinforced Thermoplastics with Process-Induced Anisotropic Thermomechanical Properties",
  "title_text": "FEA Framework for Short-Fiber-Reinforced Thermoplastics with Process-Induced Anisotropic Thermomechanical Properties",
  "type": "peer-reviewed",
  "updated_at": "2026-11-10T00:21:22Z",
  "url": "https://research.draconitic.com/paper/9c0kh1h0snj7j",
  "venue": "Polymers",
  "versions": []
}