Study of the effective parameters on stress distribution around triangular hole in metallic plates subjected to uniform heat flux

2016 ◽  
Vol 39 (3) ◽  
pp. 333-344 ◽  
Author(s):  
Mohammad Jafari ◽  
Mohammad Bagher Nazari ◽  
Amir Taheri Nasab
Keyword(s):  
Heat Flux ◽  
Stress Distribution ◽  
Uniform Heat Flux ◽  
Effective Parameters ◽  
Uniform Heat ◽  
Metallic Plates

Effect of hole geometry on the thermal stress analysis of perforated composite plate under uniform heat flux

2018 ◽  
Vol 53 (8) ◽  
pp. 1079-1095 ◽  
Author(s):  
Mohammad Jafari ◽  
Mohammad Jafari
Keyword(s):  
Heat Flux ◽  
Thermal Stress ◽  
Stress Distribution ◽  
Stress Analysis ◽  
Composite Plate ◽  
Composite Plates ◽  
Uniform Heat Flux ◽  
Thermal Stress Analysis ◽  
Uniform Heat ◽  
Hole Geometry

The presence of holes in composite plates subjected to a uniform heat flux induces thermal stresses. Hole geometry is one of the important parameters in the stress distribution in perforated composite plates. In this study, using the two-dimensional thermoelastic theory, and on the basis of the Lekhnitskii' complex variable technique in steady-state condition, stress distribution around holes with different shapes in an infinite composite plate under uniform heat flux is investigated. Using a conformal mapping function, the thermal stress analysis of an infinite plate with a circular hole under a uniform heat flux is developed to analyze the plate containing a noncircular hole. The perforated composite plate is under a uniform heat flux at infinity and Neumann boundary conditions and thermal-insulated condition at the edge of the hole are considered. The rotation angle of the hole, fiber angle, the flux angle, and bluntness are important parameters investigated in the present study. In addition, the optimal values of the effective parameters to achieve the lowest thermal stress around different holes have been reported for several different materials. The obtained results show that these parameters have a significant effect on the stress and displacement distributions around the rectangular hole.

A Nondimensional Analysis of Boiling Dry a Vertical Channel with a Uniform Heat Flux

1981 ◽  
Vol 103 (4) ◽  
pp. 667-672 ◽  
Author(s):  
K. H. Sun ◽  
R. B. Duffey ◽  
C. Lin
Keyword(s):  
Heat Flux ◽  
Nuclear Power ◽  
Closed Form Solution ◽  
Vertical Channel ◽  
Form Solution ◽  
Uniform Heat Flux ◽  
Two Phase ◽  
Drift Flux ◽  
Rod Bundle ◽  
Uniform Heat

A thermal-hydraulic model has been developed for describing the phenomenon of hydrodynamically-controlled dryout, or the boil-off phenomenon, in a vertical channel with a spatially-averaged or uniform heat flux. The use of the drift flux correlation for the void fraction profile, along with mass and energy balances for the system, leads to a dimensionless closed-form solution for the predictions of two-phase mixture levels and collapsed liquid levels. The physical significance of the governing dimensionless parameters are discussed. Comparisons with data from single-tube experiments, a 3 × 3 rod bundle experiment, and the Three Mile Island nuclear power plant show good agreement.

Sign in / Sign up

Export Citation Format

Share Document