Computing the stresses in a multilayer cylinder with consideration given to the characteristics of layer contact

Pimshtein, P. G.; Zhukova, V. N.

doi:10.1007/bf01532929

Cited by 1 publication

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“…(5) The deformation of the composite tube due to applied thermomechanical loading is small compared with its size so that Hooke's law and the small strain elasticity theory can be used. (6) The adjacent layers are perfectly bonded, and the thickness of each interfacial layer is negligibly small. The influence of the interfaces can be incorporated in the current model if their thicknesses and properties are known.…”

Section: Introductionmentioning

confidence: 99%

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Stress Analysis and Structural Optimization of a Three-Layer Composite Cladding Tube Under Thermo-Mechanical Loads

Zhou

Gao

Griffith

2012

Journal of Engineering Materials and Technology

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A general solution for the stress and strain fields in a three-layer composite tube subjected to internal and external pressures and temperature changes is first derived using thermo-elasticity. The material in each layer is treated as orthotropic, and the composite tube is regarded to be in a generalized plane strain state. A three-layer ZRY4-SiC/SiC-SIC composite cladding tube under a combined pressure and thermal loading is then analyzed and optimized by applying the general solution. The effects of temperature changes, applied pressures, and layer thickness on the mechanical behavior of the tube are quantitatively studied. The von Mises' failure criterion for Isotropie materials and the Tsai-Wu's failure theory for composites are used, respectively, to predict the failure behavior of the monolithic ZRY4 (i.e., Zircaloy-4) inner layer and SiC outer layer and the composite SiCjISiC core layer of the three-layer tube. The numerical results reveal that the maximum radial and circumferential stresses in each layer always occur on the bonding surfaces. By adjusting the thickness of each layer, the effective stress in the three-layer cladding tube under the prescribed thermal-mechanical loading can be changed, thereby making it possible to optimally design the cladding e.

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Section: Introductionmentioning

confidence: 99%

“…Stress analyses have been conducted for composite/anisotropic tubes subjected to thermo-mechanical loads [6][7][8]. Most studies on composite tubes are focused on achieving an optimum stacking sequence (or winding angle) [3,4,9,10].…”

Section: Introductionmentioning

confidence: 99%