October 6, 2023 Dataset Open Access

Altstadt, Eberhard

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{
  "description": "<p>Finite element simulations of the small punch test are performed.Generic elastic-plastic material properties are used. A systematic variation of the yield stress, ultimate tensile stress and uniform elongation is performed to investigate the effects of these parameters of the uniaxial stress-strain curve on the characteristics of small punch force-deflection curves. Moreover, the effect of sample thickness is studied. It is shown that the currently used elastic-plastic transition force &ndash; obtained by bi-linear fitting &ndash; does not only depend on the yield strength but also on the work hardening behavior of the material. An alternative definition of the elastic-plastic transition force is proposed, which significantly less depends on the work hardening of the material. The approach is based on the deviation of the force-deflection curve from the analytical elastic slope derived by Reissner&#39;s plate theory. The new definition of the transition force leads to significantly reduced dependence of the correlation factor on the geometry of the small punch set-up.</p>", 
  "keywords": [
    "small punch test", 
    "yield strength", 
    "empirical correlation", 
    "finite element simulation", 
    "plate theory"
  ], 
  "datePublished": "2023-10-06", 
  "@id": "https://doi.org/10.14278/rodare.2501", 
  "@context": "https://schema.org/", 
  "creator": [
    {
      "@type": "Person", 
      "@id": "https://orcid.org/0000-0002-1177-2650", 
      "name": "Altstadt, Eberhard"
    }
  ], 
  "url": "https://rodare.hzdr.de/record/2501", 
  "distribution": [
    {
      "@type": "DataDownload", 
      "fileFormat": "zip", 
      "contentUrl": "https://rodare.hzdr.de/api/files/0eb8a857-6662-425e-b6a4-b1f723744d00/metals-2641579_Data.zip"
    }
  ], 
  "name": "Data publication: Estimation of the yield strength from small punch testing", 
  "@type": "Dataset", 
  "sameAs": [
    "https://www.hzdr.de/publications/Publ-37624"
  ], 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "identifier": "https://doi.org/10.14278/rodare.2501"
}