---
res:
  bibo_abstract:
  - <jats:p>Investigating crack growth in sheet metal originating from clinched joints
    is a major part of predicting the service life of mechanically joined structures.
    Clinching allows different materials to be joined together. A key task in this
    context is to perform crack growth simulations in the vicinity of clinched joints
    considering different load and environmental conditions. This requires formulaic
    descriptions of the fatigue crack growth rate curves for the materials used. For
    this purpose, fatigue crack growth rate curves for different R-ratios and temperatures
    are determined experimentally. Generally, these fatigue crack growth rate curves
    can be described very well using a novel two-part exponential approach for the
    formulaic description of fatigue crack growth rate curves developed at Applied
    Mechanics of Paderborn University (FAM). In this case, three parameters are sufficient
    to describe the fatigue crack growth rate curves. For the material HCT590X, which
    is frequently used in clinched joints, it is shown as an example how the parameters
    vary with the R-ratio and the temperature. In addition, at high crack growth rates,
    a significant rise in the fatigue crack growth rate curve sometimes occurs at
    both low and high temperatures. To account for this feature, the two-part exponential
    approach can be expanded to include a third part.</jats:p>@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Gunter
      foaf_name: Kullmer, Gunter
      foaf_surname: Kullmer
      foaf_workInfoHomepage: http://www.librecat.org/personId=291
  - foaf_Person:
      foaf_givenName: Sven
      foaf_name: Krome, Sven
      foaf_surname: Krome
      foaf_workInfoHomepage: http://www.librecat.org/personId=57245
  - foaf_Person:
      foaf_givenName: Deborah
      foaf_name: Weiß, Deborah
      foaf_surname: Weiß
      foaf_workInfoHomepage: http://www.librecat.org/personId=45673
  - foaf_Person:
      foaf_givenName: Britta
      foaf_name: Schramm, Britta
      foaf_surname: Schramm
      foaf_workInfoHomepage: http://www.librecat.org/personId=4668
  - foaf_Person:
      foaf_givenName: Richard
      foaf_name: Ostwald, Richard
      foaf_surname: Ostwald
      foaf_workInfoHomepage: http://www.librecat.org/personId=106876
    orcid: 0000-0003-2147-8444
  bibo_doi: 10.3390/met16080835
  bibo_issue: '8'
  bibo_volume: 16
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2075-4701
  dct_language: eng
  dct_publisher: MDPI AG@
  dct_title: Influence of the R-Ratio and the Temperature on the Coefficients of a
    Novel Exponential Approach for the Formulaic Description of Fatigue Crack Growth
    Rate Curves@
...