Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness

Yashar Javadi, Hamed Salimi Pirzaman, Mohammadreza Hadizadeh Raeisi, Mehdi Ahmadi Najafabadi

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

This study investigates ultrasonic method in axial and hoop stress measurement through thickness of an austenitic stainless steel pipe. Longitudinal critically refracted (LCR) waves are employed to measure the welding residual stresses while outer and inner surfaces of the pipe are inspected by using different frequency range of ultrasonic transducers. The acoustoelastic constant is measured on a plate with the same material and thickness of the investigated pipe to keep the pipe intact. Welding process of the pipe is simulated by a 3D finite element (FE) model which is validated by hole-drilling method performed on 25 points. The residual stresses calculated by FE simulation are then compared with those obtained from the ultrasonic measurement while a good agreement is observed. It is demonstrated that the residual stresses through thickness of the stainless steel pipe can be evaluated by combining FE and LCR method (known as FELCR method).

LanguageEnglish
Pages591-601
Number of pages11
JournalMaterials and Design
Volume49
DOIs
Publication statusPublished - Aug 2013
Externally publishedYes

Fingerprint

Stainless Steel
Steel pipe
Residual stresses
Stainless steel
Inspection
Ultrasonics
Pipe
Welding
Ultrasonic measurement
Ultrasonic transducers
Stress measurement
Austenitic stainless steel
Drilling

Keywords

  • acoustoelastic constant
  • finite element welding simulation
  • longitudinal critically refracted waves
  • through thickness stress measurement
  • ultrasonic stress measurement

Cite this

Javadi, Yashar ; Pirzaman, Hamed Salimi ; Raeisi, Mohammadreza Hadizadeh ; Najafabadi, Mehdi Ahmadi. / Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness. In: Materials and Design. 2013 ; Vol. 49. pp. 591-601.
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abstract = "This study investigates ultrasonic method in axial and hoop stress measurement through thickness of an austenitic stainless steel pipe. Longitudinal critically refracted (LCR) waves are employed to measure the welding residual stresses while outer and inner surfaces of the pipe are inspected by using different frequency range of ultrasonic transducers. The acoustoelastic constant is measured on a plate with the same material and thickness of the investigated pipe to keep the pipe intact. Welding process of the pipe is simulated by a 3D finite element (FE) model which is validated by hole-drilling method performed on 25 points. The residual stresses calculated by FE simulation are then compared with those obtained from the ultrasonic measurement while a good agreement is observed. It is demonstrated that the residual stresses through thickness of the stainless steel pipe can be evaluated by combining FE and LCR method (known as FELCR method).",
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Ultrasonic inspection of a welded stainless steel pipe to evaluate residual stresses through thickness. / Javadi, Yashar; Pirzaman, Hamed Salimi; Raeisi, Mohammadreza Hadizadeh; Najafabadi, Mehdi Ahmadi.

In: Materials and Design, Vol. 49, 08.2013, p. 591-601.

Research output: Contribution to journalArticle

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AB - This study investigates ultrasonic method in axial and hoop stress measurement through thickness of an austenitic stainless steel pipe. Longitudinal critically refracted (LCR) waves are employed to measure the welding residual stresses while outer and inner surfaces of the pipe are inspected by using different frequency range of ultrasonic transducers. The acoustoelastic constant is measured on a plate with the same material and thickness of the investigated pipe to keep the pipe intact. Welding process of the pipe is simulated by a 3D finite element (FE) model which is validated by hole-drilling method performed on 25 points. The residual stresses calculated by FE simulation are then compared with those obtained from the ultrasonic measurement while a good agreement is observed. It is demonstrated that the residual stresses through thickness of the stainless steel pipe can be evaluated by combining FE and LCR method (known as FELCR method).

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