October 6, 2023 Dataset Open Access

Altstadt, Eberhard

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{
  "DOI": "10.14278/rodare.2501", 
  "issued": {
    "date-parts": [
      [
        2023, 
        10, 
        6
      ]
    ]
  }, 
  "id": "2501", 
  "publisher": "Rodare", 
  "type": "dataset", 
  "abstract": "<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>", 
  "title": "Data publication: Estimation of the yield strength from small punch testing", 
  "author": [
    {
      "family": "Altstadt, Eberhard"
    }
  ]
}