The present paper is devoted to fracture analysis of an inhomogeneous non-linear elastic beam configuration with three parallel longitudinal cracks. material continuously along the height. subjected four-point bending. behavior studied by applying J-integral approach. Solutions are obtained for For this purpose, curvature and coordinates neutral axes crack arms determined using equations equili...

The objective of this study is to evaluate the existing test methods of die strength, including widelyaccepted three-point and four-point bending tests, and a newly-proposed point-load test by testing silicon die specimens with different surface conditions. It has been reported that there are three factors to influence die strength: the surface conditions of the die (including grinding-mark dir...

An inverse analyses procedure for determining the mechanical material properties of strain hardening cement-based materials is presented. It allows to determine the uniaxial stressstrain curve up to the material’s localization point on the basis of the results of four-point bending tests. In these tests, the beam curvature is measured and serves as input value for the inverse analysis. An evolu...