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A platform for research: civil engineering, architecture and urbanism
Effective elastic characteristics of honeycomb sandwich composite shells made of generally orthotropic materials
This paper works on the analytical development of the method of two-scale asymptotic homogenization. The technique is used to determine the effective elastic stiffnesses of hexagonal honeycomb-cored structural sandwich composite shells made of generally orthotropic materials. Orthotropy of the constituent materials leads to much more complex unit-cell problems and is considered in the present paper for the first time. At first, a 3D-to-2D general shell model based on a set of unit-cell problems is derived. This is followed by the exploitation of the model to the derivation of analytical estimate formulae; used to calculate the force and moment resultants present in the sandwich shell structure. The implication of the general shell model is further indicated by calculating similar design characteristics for a three-layered composite sandwich panel reinforced with hexagonal and triangular shaped cellular core made from the generally orthotropic material.
Effective elastic characteristics of honeycomb sandwich composite shells made of generally orthotropic materials
This paper works on the analytical development of the method of two-scale asymptotic homogenization. The technique is used to determine the effective elastic stiffnesses of hexagonal honeycomb-cored structural sandwich composite shells made of generally orthotropic materials. Orthotropy of the constituent materials leads to much more complex unit-cell problems and is considered in the present paper for the first time. At first, a 3D-to-2D general shell model based on a set of unit-cell problems is derived. This is followed by the exploitation of the model to the derivation of analytical estimate formulae; used to calculate the force and moment resultants present in the sandwich shell structure. The implication of the general shell model is further indicated by calculating similar design characteristics for a three-layered composite sandwich panel reinforced with hexagonal and triangular shaped cellular core made from the generally orthotropic material.
Effective elastic characteristics of honeycomb sandwich composite shells made of generally orthotropic materials
Saha, Gobinda C. (author) / Kalamkarov, Alexander L. (author) / Georgiades, Anastasis V. (author)
Composites, Part A: Applied Science and Manufacturing ; 38 ; 1533-1546
2007
14 Seiten, 11 Bilder, 1 Tabelle, 13 Quellen
Article (Journal)
English
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