The loss of compressive stiffness of a thin square plate buckled in shear is calculated. Two cases are considered, first a perfectly flat plate, and second a plate with an imperfection amplitude equal to 10 per cent of the plate thickness. Changes in shear stiffess are also plotted. The ...
the effect of relative slip, with the calculation formulas of deformation of the composite girder given to analyze the examples under different conditions, thus discussing the influences of connection stiffness and the steel plate thickness of cold-formed U-bar on the deformation of composite girder....
Flat plateEffective widthGrillage analysisSeismicFlat plates are widely used in reinforced concrete structures. To evaluate the lateral stiffness of a flat plate system, the contributing slab width needs to be defined. In this paper, a model that utilizes grillage analysis is proposed to predict the...
the formation of kinematic mechanisms, thus ensuring the plate-lattice topology is always stretching-dominated, which may not be true in a corresponding beam topology. However, these advantages come at the cost of dramatically increased fabrication complexity. The closed-cell topologies of three-dimensi...
A 12×12 stiffness matrix was obtained for the gull-wing lead and solder joint in a plastic quad flat pack (PQFP) surface-mount assembly, using a three-dimensional finite element method. Deformation of the composite structure for each imposed unit displacement (or rotation) was then obtained. ...
Turf toe, first metatarsophalangeal joint (MTPJ) sprain, is a debilitating injury in football players that is likely the result of excessive dorsiflexion of the hallux. Understanding in-cleat motion of the MTPJ with increased magnitudes of midsole stiffness may help to identify footwear modifications...
The steel plate shear wall system has been used in a number of buildings as an innovative lateral force resistant system.Openings often exist in the steel plate shear walls due to the various functional requirements of structures.These openings may negatively impact the lateral stiffness of steel ...
the theoretical stiffness and strength limitsof any isotropic cellular topology, respectively. While plate-based designs are predicted to reach the upper bounds, experimental verification has remained elusive due to significant manufacturing challenges. Here, we present a new class of nanolattices, ...
accordingtotheregulationof3.5.2,thevalues ofRatx2andRaty2aresignificantforframeshear,platecolumn shear,shearwallstructure,frametubeandtubeintube structure.WhentheRatx2andRaty2aregreaterthan1,the lateralstiffnessofthestructureischangedcontinuously. Ratx2=,Ki*hi/(Ki+1*hi+1)(lateralstiffness) For150%,the...
As the stiffness of the elastic support varies with the physical-chemical erosion and mechanical friction, model catastrophe of a single degree-of-freedom (DOF) isolation system may occur. A 3-DOF four-point-elastic-support rigid plate (FERP) structure is presented to describe the catastrophic ...