نتایج جستجو برای: cracked bars and beams
تعداد نتایج: 16839143 فیلتر نتایج به سال:
Abstract With the help of fractional differential equations, this article studies failure morphology, fatigue strength, and life corroded reinforced concrete beams under loading. Studies have shown that mid-span deflection low-corrosion is smaller than uncorroded beams. The corrosion-fatigue coupling effect accelerates crack growth rate steel bars. This reduces modulus causes stiffness beam to ...
The non-continuous laser beam in pulsed lasers allows the mechanical peening between two consecutive beams on a still hot weld bead. At a very short time (20, 150 and 300 ms) after laser pulse application, mechanical peening was performed on the welding bead. To achieve these short times, the light sensor detects the nth laser pulse and the mechanical arm starts moving. Upon reaching the tip of...
A finite element model based on the layerwise theory is developed for the analysis of transverse cracking in cross-ply laminated beams. The numerical model is developed using the layerwise theory of Reddy, and the von Kármán type nonlinear strain field is adopted to accommodate the moderately large rotations of the beam. The finite element beam model is verified by comparing the present numeric...
Bu çalışma, deneysel ve sayısal olarak kompozit yamalar ile tamir edilen çatlaklı sandviç kirişlerin eğilme darbe davranışını araştırmaktadır. Sandviç kiriş elemanları yüzey tabakaları, cam elyaf takviyeli kompozit, köpük çekirdek, PVC malzeme yapıştırıcı tabakalardır. Üst tabakasına çatlak oluşturularak hasar verilmiştir yama yapıştırılarak edilmiştir. Düşük hızlı davranışı, farklı malzemeleri...
Reinforced concrete beams are normally designed as under-reinforced to provide ductile behaviour at failure i.e. the tensile moment of resistance, Mt(0), is less than the moment of resistance of the compressive zone, Mc. Since it is well established that the steel in reinforced concrete beams is prone to corrosion, the residual flexural strength is normally the main concern of asset managers. H...
This paper numerically investigates the flexural response of concrete beams reinforced with steel and four types Fiber-Reinforced Polymers (FRP), i.e., Carbon FRP (CFRP), Glass (GFRP), Aramid (AFRP), Basalt (BFRP). The responses forty two boundary conditions (simply supported over-hanging beams) were determined using ABAQUS. Subsequently, finite element models validated experimental results. Ev...
Incorporating steel bars as reinforcement in glued laminated timber beams is a technique that aims at better structural performance, allowing the reduction of cross-sections. In present research, based on experimental results from literature about timbers beams, parametric study was carried out with aid 164 numerical simulations performed within scope linear and nonlinear physical analysis via ...
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