The analysis of stress-intensity factors is of immense importance when designing vessels, pipes, and end-caps as well as supporting structures and plates seen in high-temperature applications. Given this importance and the difficulty of measuring actual thermal boundary conditions, a generalized series based on a new and infinitely differentiable polynomial was employed to inversely determine the transient temperature distribution in a semi-infinite slab using only a single temperature history. These temperature distributions were in turn used to find the potential crack-opening stresses throughout the body. Using the found stresses and a weight-function approach, stress-intensity factors were then determined for both edge and semi-elliptical cracks under an arbitrary thermal-shock. When compared to other methods for various thermal scenarios, the method showed good agreement for both edge- and semi-elliptical surface cracks.
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November 2008
Research Papers
An Inverse Method for the Determination of Thermal Stress-Intensity Factors Under Arbitrary Thermal-Shocks
J. Meeker,
J. Meeker
Engineering Science and Mechanics,
The Pennsylvania State University
, University Park, PA 16802
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A. E. Segall,
A. E. Segall
Mem. ASME
Engineering Science and Mechanics,
e-mail: aesegall@psu.edu
The Pennsylvania State University
, University Park, PA 16802
Search for other works by this author on:
E. Gondar
E. Gondar
Mechanical Engineering College,
Slovak University of Technology
, 83102 Bratislava, Slovak Republic
Search for other works by this author on:
J. Meeker
Engineering Science and Mechanics,
The Pennsylvania State University
, University Park, PA 16802
A. E. Segall
Mem. ASME
Engineering Science and Mechanics,
The Pennsylvania State University
, University Park, PA 16802e-mail: aesegall@psu.edu
E. Gondar
Mechanical Engineering College,
Slovak University of Technology
, 83102 Bratislava, Slovak RepublicJ. Pressure Vessel Technol. Nov 2008, 130(4): 041206 (8 pages)
Published Online: August 21, 2008
Article history
Received:
December 11, 2006
Revised:
September 20, 2007
Published:
August 21, 2008
Citation
Meeker, J., Segall, A. E., and Gondar, E. (August 21, 2008). "An Inverse Method for the Determination of Thermal Stress-Intensity Factors Under Arbitrary Thermal-Shocks." ASME. J. Pressure Vessel Technol. November 2008; 130(4): 041206. https://doi.org/10.1115/1.2967737
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