TY - JOUR A1 - Kromm, Arne A1 - Thomas, Maximilian A1 - Kannengiesser, Thomas A1 - Gibmeier, Jens T1 - On the interpretation of Varestraint and Transvarestraint hot cracking test results JF - Welding in the World N2 - The Varestraint test and its variant Transvarestraint are one of the most widely used techniques for evaluating a material solidification cracking sensitivity during welding. The result of such tests is a crack length which is proportional to the material’s cracking susceptibility. Nevertheless, the welding and load parameters can unintentionally influence the crack length, which in some cases can distort the material evaluation. An approach is described as to how these effects can be assessed with the aid of a digital crack analysis. The crack lengths are compared position-dependently with their possible propagation due to the weld pool movement during continuous loading. The index derived from this can be used by the operator to evaluate his test parameters. In addition, a comparison of the results of different Varestraint setups is made possible. Alongside experimental results, a numerical sensitivity analysis is presented on how individual welding and loading parameters can affect the crack lengths. KW - Varestraint test KW - Solidification cracking KW - Weldability PY - 2024 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-595089 DO - https://doi.org/10.1007/s40194-024-01706-8 SN - 0043-2288 SP - 1 EP - 13 PB - Springer Science and Business Media LLC AN - OPUS4-59508 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -