An inverse method for the determination of thermal stress-intensity factors under arbitrary thermal-shocks

J. Meeker, Albert Eliot Segall, E. Gondar

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 languageEnglish (US)
Pages (from-to)412061-412068
Number of pages8
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Volume130
Issue number4
DOIs
StatePublished - Nov 1 2008

Fingerprint

Thermal shock
Thermal stress
Stress intensity factors
Cracks
Temperature distribution
High temperature applications
Pipe
Polynomials
Boundary conditions
Temperature
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{4e9844e82d904ce7b6fb3f076e850c61,
title = "An inverse method for the determination of thermal stress-intensity factors under arbitrary thermal-shocks",
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.",
author = "J. Meeker and Segall, {Albert Eliot} and E. Gondar",
year = "2008",
month = "11",
day = "1",
doi = "10.1115/1.2967737",
language = "English (US)",
volume = "130",
pages = "412061--412068",
journal = "Journal of Pressure Vessel Technology, Transactions of the ASME",
issn = "0094-9930",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "4",

}

An inverse method for the determination of thermal stress-intensity factors under arbitrary thermal-shocks. / Meeker, J.; Segall, Albert Eliot; Gondar, E.

In: Journal of Pressure Vessel Technology, Transactions of the ASME, Vol. 130, No. 4, 01.11.2008, p. 412061-412068.

Research output: Contribution to journalArticle

TY - JOUR

T1 - An inverse method for the determination of thermal stress-intensity factors under arbitrary thermal-shocks

AU - Meeker, J.

AU - Segall, Albert Eliot

AU - Gondar, E.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=57149145781&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57149145781&partnerID=8YFLogxK

U2 - 10.1115/1.2967737

DO - 10.1115/1.2967737

M3 - Article

AN - SCOPUS:57149145781

VL - 130

SP - 412061

EP - 412068

JO - Journal of Pressure Vessel Technology, Transactions of the ASME

JF - Journal of Pressure Vessel Technology, Transactions of the ASME

SN - 0094-9930

IS - 4

ER -