Load-Carrying Capacity of Ultra-Thin Shells with and without CNTs Reinforcement
نویسندگان
چکیده
Isotropic ultra-thin shells or membranes, as well cable–membrane structures, cannot resist loads at the initial state and always require a form-finding process to reach steady state. After this stage, they can work in pure membrane quickly experience large deflection behavior, even with small amplitude of load. This paper aims improve load-carrying capacity strength structures via exploiting advantages functionally graded carbon-nanotube-reinforced composite (FG-CNTRC) material. In work, nonlinear behavior without CNTs reinforcement are first investigated using unified adaptive approach (UAA). As an advantage UAA, both form finding postbuckling analysis performed conveniently simultaneously based on modified Riks method. Different from classical theory, present theory (first-order shear deformation theory) takes into account membrane, bending strains/stiffnesses structures. Accordingly, formulation be applied adaptively naturally various types FG-CNTRC structures: plates, membranes. A verification study is conducted show high accuracy formulation. Effects distribution, volume fraction, thickness, curvature, radius-to-thickness length-to-radius ratios membranes particularly investigated. particular, equilibrium paths provided paper.
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ژورنال
عنوان ژورنال: Mathematics
سال: 2022
ISSN: ['2227-7390']
DOI: https://doi.org/10.3390/math10091481