The purpose of this study is to propose a practical formula for estimating the maximum load bearing capacity partially concrete-filled steel tubes (PCFST) without using complicated numerical analysis and estimation procedures. This focused on four parameters (radius thickness ratio R, slenderness λ, axial force n, concrete filling Lc/L) used in determine horizontal buckling position PCFST with ...

This paper presents test results obtained from an experimental investigation to check the feasibility of reinforcing laminated bamboo columns by using aramid fiber reinforced polymer (AFRP) composites and examine effect slenderness ratio on AFRP columns. Eighteen full-scale were grouped into 6 categories including 3 specimens without reinforcements. Obtained used study failure modes, ultimate l...

In this work, we describe the impact of aspect ratio ( $AR$ ) on performance optimally phased, identical flapping flippers in a tandem configuration. Three-dimensional simulations are performed for seven sets single and finite foils at moderate Reynolds number, with thrust producing, heave-to-pitch coupled kinematics. Increasing slenderness (or is found to improve coefficients augmentation but ...

Concrete-filled tubular (CFT) columns exhibit higher axial resistance and better displacement ductility as compared to the conventional reinforced concrete members. The performance of CFT members may be influenced by many geometric material parameters. This study presents an experimental on twenty-two column specimens subjected monotonic compressive loading until their failure. main parameters ...

The optimal position and minimum support stiffness of a vibrating Timoshenko beam are investigated to maximize the fundamental frequency. Finite element method is employed. intermediate support's ideal minimal for wide variety slenderness proportions were achieved after validating finite model with Euler-Bernoulli model's analytical solution. It was observed that its sensitive ratio. According ...

In this study, the leakage of a non-Newtonian fluid, i.e. silicone oil, in generic gap was numerically investigated. A CFD tool is used to determine relationship between flow, length and pressure difference. The investigated fluid viscoelastic its properties are modelled by Maxwell equation. model can be precisely define phenomenon stress relaxation. Moreover, comparison viscosity measured data...

Assembled T-shaped aluminum alloy components represent a new type of structural member in structures with broad application prospects. In this study, axial compression tests were carried out on 32 components, considering parameters such as the cross-sectional and slenderness ratio to obtain ultimate bearing capacity failure mode members. The test results show that, for equilateral assembled obv...

Confined concrete in pipes provides a solution for the structures to resist lateral forces and avoids problems associated with production of confined reinforcement. To evaluate influence PVC pipe on compressive behavior filled composite tubes, ABAQUS software was used simulate 44 (CFPT). The internal steel reinforcement, unconfined strength, slenderness ratio, specimen’s size thickness tube fai...