Fracture of a Finite Medium with a Circular Internal Crack under Hyperbolic Heat Conduction-Prescribed Crack Face Temperature

2013 ◽  
Vol 716 ◽  
pp. 402-408 ◽  
Author(s):  
B. Wang
Keyword(s):  
Stress Intensity Factor ◽  
Heat Conduction ◽  
Thermal Stress ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Internal Crack ◽  
Hyperbolic Heat Conduction ◽  
Thermal Stress Intensity Factor ◽  
Transient Thermal ◽  
Fourier Model

This paper studies the fracture mechanics of a thermoelastic material layer with an internal crack subjecting to a prescribed temperature. The hyperbolic heat conduction theory is used and the transient thermal stress intensity factor is obtained. Comparisons of the results from the non-Fourier model and the Fourier model are made. The results demonstrate that the non-Fourier effect has a strong effect on the transient thermal stress around the crack tip. Thermal stress intensity factor predicted by the hyperbolic heat conduction model is considerably high then that predicted by the classical Fourier.

Fracture of a Finite Medium with a Circular Internal Crack under Hyperbolic Heat Conduction-Prescribed Crack Face Thermal Flux

2013 ◽  
Vol 706-708 ◽  
pp. 1373-1378
Author(s):  
B. Wang
Keyword(s):  
Stress Intensity Factor ◽  
Heat Conduction ◽  
Thermal Stress ◽  
Stress Intensity ◽  
Thermal Flux ◽  
Internal Crack ◽  
Hyperbolic Heat Conduction ◽  
Crack Face ◽  
Thermal Stress Intensity Factor ◽  
Finite Medium

This paper studies the fracture mechanics of a thermoelastic medium with an internal circular crack subjecting to a prescribed thermal flux. The time varying crack tip thermal stress intensity factor is solved. Solution for the infinite medium under steady heat conduction is given in closed form. Comparisons between the non-Fourier results and the classical Fourier results are made. Numerical results show that the non-Fourier heat model predicts considerable high transient thermal stress intensity factor than the Fourier model. This paper, together with our previous paper entitled fracture of a finite medium with a circular internal crack under hyperbolic heat conduction-prescribed crack face temperature, completes the analysis of a finite medium with a circular internal crack under hyperbolic heat conduction.

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