The relationship between microstructures and ductility parameters, including reduction of area, elongation to failure, occurrence delamination, number turns failure in torsion, hypereutectoid pearlitic steel wires was investigated. transformed at 620 °C were successively dry-drawn drawing strains from 0.40 2.38. To examine the effects hot-dip galvanizing conditions, post-deformation annealing p...

This paper investigates the possibility of recycled aggregate use in concrete slabs with hollow cores. The main variables considered experimental study for were percentage and core number. Six dimensions (1000 × 500 120) mm was fabricated tested. results showed that addition affected ultimate strength, ductility, energy absorption members. An increase to 25 % decreased strength capacity by 3.54...

This paper represents experimental and numerical study the behavior of rubberized steel frame connections. One single-bay, one-story without elastic buckling are cyclically tested. The specimens simulated analyzed by ABAQUS program. Four plane portal investigated under horizontal reversed cyclic loads. specimen connections developed using different diameters composite bolts/rubber instead conve...

Strength and ductility are two of the most important mechanical properties of structural materials. However, they are often mutually exclusive, i.e., a material may be strong or ductile, but rarely both at the same time. This is also true for bulk nanostructured materials, which usually have high strength, but disappointingly low ductility. Bulk nanostructured materials are usually synthesized ...

Using ab initio alloy theory, we investigate the equilibrium bulk properties and elastic mechanics of the single bcc solid-solution AlxHf1−xNbTaTiZr (x = 0–0.7, 1.0) high entropy alloys. Ab initio predicted equilibrium volume is consistent with the available experiment. We make a detailed investigation of the alloying effect of Al and Hf on the equilibrium volume, elastic constants and polycrys...

This paper is concerned with the inelastic behavior of axially loaded concrete-filled thin-walled steel tubular columns subjected to local buckling. A nonlinear fiber element analysis program accounting for local buckling effects is developed for predicting the ultimate strength and ductility of concrete-filled thin-walled steel tubular columns. The effects of local buckling are taken into cons...

Materials with ultrafine grain sizes are attractive for use in micro-forming operations. High-pressure torsion (HPT) is an effective technique that allows disc materials subjected to torsional deformation to generate microstructures with significant grain refinement. Generally, ultrafine-grained materials exhibit high strength but their ductility is limited because they have both a low rate of ...

This paper investigates the role of sheathing-to-framing connection ductility in evaluation structural q-behaviour factor for Light-Frame Timber (LFT) buildings, by means Incremental Dynamic Analyses (IDA). approach allows to consider nonlinear cyclic behaviour walls, which cannot be taken into account with sta...

Herein, the effects of Ca content on microstructure, texture and mechanical properties extruded Mg–3Al–0.4Mn–xCa (x = 0.4, 0.8 1.2 wt%) rods are systematically investigated. The results reveal that alloy, with wt%, exhibits highest strength ductility, possessing an ultimate tensile 267.57 MPa elongation (EL) 16%. This is mainly due to gradual transformation typical fiber into a [10-11] componen...

A ring-shaped Mg–8.5Gd–4Y–1Zn–0.4Zr (wt%) alloy was manufactured via centrifugal casting and ring-rolling process. The effects of accumulative reduction amount on the microstructure, texture, tensile properties were investigated. results indicate that microstructure cast consists equiaxed grains network-like eutectic structure present at grain boundaries. ring-rolled exhibits a characteristic b...