{
  "abstract": "We introduce a data-driven framework for identifying material behavior from full-field kinematics and external force measurements in generalized (micromorphic) continua. The aim is to determine whether such input data can reveal generalized stress–strain states and their constitutive response without prescribing closure relations or relying on RVE-based homogenization. To this end, the approach infers the associated generalized stresses from full-field boundary value problems and constructs representative material datasets via clustering in a non-classical phase space. We show that the proposed method reliably extracts non-symmetric and higher-order local stress states, providing material data suitable for either model calibration or model-free data-driven simulations of generalized continua. These capabilities are demonstrated in linear and nonlinear validation simulations with synthetic data, and in an application to mechanical metamaterials, suggesting a practical route for material characterization of microstructured solids.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2512.15646",
  "author_total": 2,
  "authors": [
    {
      "name": "Jacinto Ulloa"
    },
    {
      "name": "Laurent Stainier"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7kgfnkj1ymqdm.bib",
  "cited_by": 0,
  "doi": "10.1016/j.jmps.2026.106742",
  "fulltext_url": null,
  "id": "7kgfnkj1ymqdm",
  "issns": [
    "0022-5096"
  ],
  "landing_url": "https://hal.science/hal-05741474v1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
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      "hal",
      "0.math"
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      "hal",
      "1.math.math-na"
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      "hal",
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      "hal",
      "2.phys.meca.solid"
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      "openalex",
      "2505|Nonlocal and gradient elasticity in micro/nano structures"
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  "openalex": "W7166173464",
  "pdf_url": "https://hal.science/hal-05741474/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/7kgfnkj1ymqdm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:29Z",
      "native_id": "hal-05741474",
      "source": "hal",
      "url": "https://hal.science/hal-05741474v1"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "hal:1.math.math-na",
      "subfield": "numerical-analysis"
    },
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "Data-driven material data identification in micromorphic continua",
  "title_text": "Data-driven material data identification in micromorphic continua",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:29Z",
  "url": "https://research.draconitic.com/paper/7kgfnkj1ymqdm",
  "venue": "Journal of the Mechanics and Physics of Solids",
  "versions": []
}