Abstract
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-differentiate 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.
Original language | English (US) |
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Pages (from-to) | 412061-412068 |
Number of pages | 8 |
Journal | Journal of Pressure Vessel Technology, Transactions of the ASME |
Volume | 130 |
Issue number | 4 |
DOIs | |
State | Published - Nov 2008 |
All Science Journal Classification (ASJC) codes
- Safety, Risk, Reliability and Quality
- Mechanics of Materials
- Mechanical Engineering