high performance fiber reinforced cementitious composite (hpfrcc) materials exhibit strain hardening behavior with multiple cracking under tensile loading. in this paper, experimental and parametric studies are performed to assess the influence of using hpfrcc material instead of normal concrete in reinforced concrete beams. after calibrating the experimental results, the analytical results inc...

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...

The selection of an adequate response reduction factor (R) in the seismic design a reinforced concrete building is critical to building’s response. To construct robust structure, R should be chosen based on resilience performance. Since no background was provided for factors, study focuses right factors relation functionality, performance level, and resilience. In this study, high-rise with mul...

This paper aims to guide structural engineers on how apply the rapid nonlinear time history analysis (RNLTHA) procedure effectively predict seismic demand, taking into account ductility and overstrength, effects of dynamic phenomena including cyclic degradation strength stiffness in structures, a direct expedient manner. The shortcoming conventional force-based approach design involving use for...

An optimization technique is coupled with crystal plasticity based finite element (CPFE) computations to aid the microstructural design of a wrought magnesium alloy for improved strength and ductility. The initial microstructure consists of a collection of sub-micron sized grains containing deformation twins. The variables used in the simulations are crystallographic texture, and twin spacing w...

Creep-fatigue life evaluation method for HR6W base metal and welded joint was examined based on the results of uniaxial fatigue creep-fatigue tests using smooth specimens at 700 750℃. Regarding metal, by linear damage rule carried out test with strain holding time up to 10 hours. In case fraction rule, failure criterion intersection (Df , Dc) = (0.1 0.1) gave conservative prediction even in lon...

The present study examines the new generation of concrete. Concrete has long been a major problem, is its ductility. Traditionally, remembering the words of concrete, compressive strength also comes to mind. Compressive strength is not only parameter of necessary and sufficient for a material. Concrete is basically brittle material. By adding the steel in this material is an attempt to ductile ...

The effect of nitrogen on the structure and mechanical behavior a CoCrFeMnNi high-entropy alloy after rolling subsequent annealing was examined. as-cast alloys doped with 0.5, 1.0, 2.0 at% N were cold rolled to 80% thickness reduction. Further in temperature range 700–1000 °C for 1 h has resulted (i) development recrystallization fcc matrix (ii) precipitation M2N type nitrides 1.0 N. onset lowe...

Focusing on nanocrystalline (nc) pure face-centered cubic metals, where systematic experimental data are available, this paper presents a brief overview of the recent progress made in improving mechanical properties of nc materials, and in quantitatively and mechanistically understanding the underlying mechanisms. The mechanical properties reviewed include strength, ductility, strain rate and t...