A novel approach to measure direct tensile strength on short-length cylindrical samples

The determination of tensile strength via direct tensile tests sets special requirements to the sample geometry. Under certain circumstances these requirements cannot be fulfilled. The proposed new lab test approach allows to perform direct tensile tests on short-length cylindrical homogeneous samples, but especially on samples with interfaces. The proposed procedure is verified by numerical simulations. Validation is documented exemplary for a homogeneous sandstone sample and a composite sample with interface (salt rock and special concrete).