Dislocation structures developed in hinge-type plastic zones associated with cracks in silicon crystals have been studied using a high voltage electron microscope (HVEM). Fine slip bands due to those dislocations have been also examined by an atomic force microscope (AFM). {100} and {110} cracks were introduced into {110} silicon wafers at room temperature by Vickers indentation method. The tem...

This paper presents two shear tests of -in. diameter cast-in anchors embedded in the plastic hinge zone of reinforced concrete columns. Design codes, such as ACI 318-14, require special reinforcement for concrete anchors in concrete that could be substantially damaged during an earthquake. The test anchors in this study were equipped with the anchor reinforcement recommended and verified in the...

One of the key damage observations in modern reinforced concrete (RC) frame buildings, damaged following 2010/2011 Canterbury and 2016 Kaikoura earthquakes, was localised cracking at beam-column interface capacity-designed beams. The beams due to curtailed longitudinal bars interface. Following these observations, without experimental data justify desirable seismic performance, controlled by we...