Welding residual stress is one of the main concerns in the process of fabrication and operation because of failures in welded steel joints due to its potential effect on structural integrity. This work focuses on the effect of welding residual stress on the ductile crack growth behavior in AISI 316LN welded CT specimens. Two-dimensional plane strain model has been used to simulate the CT specimen. X-ray diffraction technique is used to obtain residual stress value at the SS 316LN weld joint. The GTN model has been employed to estimate the ductile crack growth behavior in the CT-specimen. Results show that residual stresses influence the ductile crack growth behavior. The effect of residual stress has also been investigated for cases with different initial void volume fraction, crack lengths.
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ASME 2018 Pressure Vessels and Piping Conference
July 15–20, 2018
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5163-0
PROCEEDINGS PAPER
Influence of Weld Residual Stresses on Ductile Crack Behavior in AISI Type 316LN Stainless Steel Weld Joint
Sai Deepak Namburu,
Sai Deepak Namburu
IIT Madras, Chennai, India
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Lakshmana Rao Chebolu,
Lakshmana Rao Chebolu
IIT Madras, Chennai, India
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A. Krishnan Subramanian,
A. Krishnan Subramanian
IGCAR, Kalpakkam, India
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Sasikala Gomathy
Sasikala Gomathy
IGCAR, Kalpakkam, India
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Sai Deepak Namburu
IIT Madras, Chennai, India
Lakshmana Rao Chebolu
IIT Madras, Chennai, India
A. Krishnan Subramanian
IGCAR, Kalpakkam, India
Raghu Prakash
IIT Madras, Chennai, India
Sasikala Gomathy
IGCAR, Kalpakkam, India
Paper No:
PVP2018-84693, V03BT03A028; 7 pages
Published Online:
October 26, 2018
Citation
Namburu, SD, Chebolu, LR, Subramanian, AK, Prakash, R, & Gomathy, S. "Influence of Weld Residual Stresses on Ductile Crack Behavior in AISI Type 316LN Stainless Steel Weld Joint." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 3B: Design and Analysis. Prague, Czech Republic. July 15–20, 2018. V03BT03A028. ASME. https://doi.org/10.1115/PVP2018-84693
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