BACKGROUND Football turf is increasingly used in European soccer competition. Little is known on the rotational torque that players experience on these fields. High rotational torques between the shoe outsole and the sports surface has been correlated with torsional injuries of the lower limb and knee. PURPOSE To evaluate the effect of six parameters that could influence the rotational torque...

This paper introduces a new method of calculating the expected improvement infill criterion, which does not rely on accurate model parameter estimation. The parameter estimation is embedded within the search of the infill criterion, wherein parameter changes are assessed using likelihood ratio tests. Unlike the traditional expected improvement, a new formulation we present cannot be ‘fooled’ by...

A revised procedure for the design of steel plate shear walls is proposed. In this procedure the thickness of the infill plate is found using equations that are derived from the plastic analysis of the strip model, which is an accepted model for the representation of steel plate shear walls. Comparisons of experimentally obtained ultimate strengths of steel plate shear walls and those predicted...

This study presents an innovative design for a cold-formed steel polyurethane (CFS-PU) composite wall panel, combining frame, foam infill, and gypsum fibreboard sheathing. The filling process, in which the is injected under pressure, ensures uniform distribution, bonding, interaction of all panel components. aim to evaluate behaviour CFS-PU panels influence PU sheathing on performance CFS frame...

This paper presents an accurate and efficient computational strategy for the simulation of coupled masonry structures which combines a partitioned mesoscale modelling approach for brick-masonry components with a mortar mesh tying method for non-conforming interfaces. This allows the independent modelling of the individual structural components and the efficient tying of the subdomains with accu...

A large number of researchers have studied the behavior of infilled frames. It is evident through their studies that infill walls can provide both an economic and practical means for the lateral stability of framed structures and a viable alternative for retrofitting existing structures to resist seismic, wind, and blast loads. Despite this, there is reluctance from the engineering community to...

The article presents the applicability of 3D printing in casting. Even complex models produced by can be effectively applied field lost pattern process was realized using Polycast and Pioneer investment powder (gypsum). Based on measurement it is clear that size differences come from technology. minimum wall thickness cannot less than 0.8 mm, but there inaccuracy under 2.1 mm when no infill sec...

The corrugated steel plate shear wall (CSPSW) has high strength, ductility, and energy dissipation capacity can be used as the lateral force-resisting system of multi-story high-rise buildings. vertical load transmitted by upper floor frame columns may inevitably act on wall. However, influence gravity performance is not considered in most studies. To investigate behavior walls considering actu...