Static Buckling of a Pre-loaded Complex Nano-composite Shell
نویسندگان
چکیده
This paper describes a technique for analyzing the phenomenon of static buckling pre-loaded complex nano-composite shell. Most works devoted to analysis structures consider vibration processes, while can be an important factor that limits use new materials in space-rocket hardware. A constant-thickness shell consisting two spherical covers and cylindrical body is considered. It acted upon by internal pressure axial compressive force. simulates fuel tank launch vehicle. Conditions under which deformed non-axisymmetrically, statically, are investigated. proposed allows problem divided into state buckling. Further performed using based on high-order shear deformation theory Ritz method. The discretized representing variables determine form expansions basis functions with unknown coefficients. Thus, it expansion coefficients become problem. pre-stressed structure reduced solving system linear algebraic equations respect eigenvalues. solution this makes possible find minimum value load at buckles, as well forms results applying developed were compared those finite element modeling made simplest material. comparison indicate high accuracy described. At same time, method large-scale thin-walled functionally gradient extremely difficult, contrast methodology paper. Comparison various types nano-reinforcement showed rational choice type reinforcement significantly increase critical load. In case, also affects
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ژورنال
عنوان ژورنال: Journal of mechanical engineering
سال: 2021
ISSN: ['2613-9847', '2598-7380']
DOI: https://doi.org/10.15407/pmach2021.01.028