Flanged shear walls are used extensively in moderate- and high-rise buildings to resist lateral loads induced by earthquakes. The seismic performance of many buildings is, therefore, closely linked to the behavior of the reinforced concrete walls. They must be carefully designed to provide not only adequate strength, but also sufficient ductility to avoid brittle failure under strong lateral lo...

[1] Nearly half of all active subduction zones initiated during the Cenozoic. All subduction zones associated with active back arc extension have initiated since the Eocene, hinting that back arc extension may be intimately associated with an interval (several tens of Myr) following subduction initiation. That such a large proportion of subduction zones are young indicates that subduction initi...

Abstract This paper presents the results of a numerical FEM analysis effect embedment depth on extent failure zone (cone failure) under an undercut anchor. For establishment other affecting quantities, formation value cone angle rock medium depending was analysed. The problem is interesting as regards aspects mass loosening during pull-out anchors. As result analysis, significant propagation an...

The paper presents a theory of the “plane weakness” modelling applied to deviated borehole that penetrated through laminated shale containing numerous parallel weakness planes. obtained results show strength envelope for anisotropic rock is characterised by U-shaped reduction in failure along plane, confining pressure from 20 MPa 80 whithout any change mechanism shale. In terms failure, there r...

results the mean of the inhibition zone diameter around the discs of green tea extract in all concentrations was significantly less than 1% sodium hypochlorite (p < 0.001). the antimicrobial effect increased in higher concentrations of extracts of green tea (p < 0.001). conclusions although the antimicrobial effect increases in higher concentrations of extracts of green tea, 1% sodium hypochlor...

The interface plays a critical role in the mechanical properties of composites. In present work, novel phase-field based cohesive zone model (CZM) is proposed for cracking simulation. competition and interaction between bulk interfacial are taken into consideration directly both displacement- phase-field. A family modified degradation functions utilized to describe traction-separation law CZM. ...