The presentation is to results recently obtained in collaborative research in the European steel programme performed by Fraunhofer-IZFP and co-operative steel industry producing rolling products. The objective was and is to characterize i.e. to predict mechanical properties like hardness, yield strength, tensile strength, deep drawing parameters rm and ∆r, etc., mainly online by use of contact-...

Tensile-shear testing results are influenced not only by the quality of spot welds, but also by the dimensions of testing specimens. Experimental and numerical studies have been conducted on determining critical sizes for tensileshear testing of resistance spot welded specimens. Statistical methods have been employed, from planning stages to the analysis of results, for the purposes of getting ...

The application of external post-tensioned steel bars as an effective way to strengthen an existing bridge has been so far used in many different countries. In recent decades, however, they have been replaced by bars made from Carbon Fiber Reinforced Polymer (CFRP), as a material with high tensile strength and corrosion resistance, to address several concerns with steel bars such as their appli...