Fracture and Structural Integrity e-ISSN 1971-8993 Open access
SI: Showcasing Structural Integrity Research in India Vol. 13, No. 49 (2019)

Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending

Author and affiliation details
  • Suresh Kumar R Corresponding author Scientific Officer G ersureshkr@gmail.com
  • B N Rao Professor
  • Velusamy K
  • Jalaldeen S
DOI
10.3221/IGF-ESIS.49.49
Pages
526-535
Published
Published inVol. 13, No. 49 (2019)Go to the issue

Abstract

Power plant piping system subjected to many cyclic loading conditions leads to fatigue loading and thereby crack initiation in the piping system. Demonstrating Leak-Before-Break (LBB) in the design stage itself plays an important role in ensuring the safety of the Sodium-cooled Fast Reactors (SFR) system. The design code guidelines as per RCC MRx A16 in LBB demonstration is conservative in nature. Conducting experiments for each size of the piping systems are expensive and time-consuming. In this paper present, the efforts taken to develop reliable numerical methods to demonstrate Fatigue Crack Growth (FCG). The geometries selected for the FCG analysis include both specimen level as well as full-scale component. The results show that KI estimate for the plate specimen increased with the increase of ‘a/t’ ratio up to 0.6 and then decreases, whereas, in case of the pipe bend, it reduced beyond the ‘a/t’ ratio of 0.4. This early reduction is due to the influence of global compressive stress present ahead of the crack growth. Thus, component level FCG simulation is essential for the accurate demonstration of LBB. FCG simulation has numerically demonstrated with better engineering accuracy for both specimen level as well as component level geometries

Keywords

Article history

  1. ReceivedUntil the next stage: 53 days
  2. Revision requestedUntil the next stage: 125 days
  3. RevisedUntil the next stage: 1 day
  4. AcceptedUntil the next stage: 27 days
  5. Published

How to cite

APA

R, S. K., Rao, B. N., K, V., & S, J. (2019). Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending. Fracture and Structural Integrity, 13(49), 526–535. https://doi.org/10.3221/IGF-ESIS.49.49

IEEE

S. K. R, B. N. Rao, V. K, and J. S, “Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending,” Fracture and Structural Integrity, vol. 13, no. 49, pp. 526–535, 2019, doi: 10.3221/IGF-ESIS.49.49.

MLA

R, Suresh Kumar, et al. “Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending.” Fracture and Structural Integrity, vol. 13, no. 49, 2019, pp. 526–535. https://doi.org/10.3221/IGF-ESIS.49.49.

Chicago

R, Suresh Kumar, B N Rao, Velusamy K, and Jalaldeen S. 2019. “Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending.” Fracture and Structural Integrity 13 (49): 526–535. https://doi.org/10.3221/IGF-ESIS.49.49.

Harvard

R, S.K., Rao, B.N., K, V. and S, J. (2019) ‘Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending’, Fracture and Structural Integrity, 13(49), pp. 526–535. doi: 10.3221/IGF-ESIS.49.49.

Vancouver

R SK, Rao BN, K V, S J. Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending. Fracture and Structural Integrity. 2019;13(49):526-535. doi:10.3221/IGF-ESIS.49.49

BibTeX

@article{r2019, author = {R, Suresh Kumar and Rao, B N and K, Velusamy and S, Jalaldeen}, title = {Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending}, journal = {Fracture and Structural Integrity}, year = {2019}, volume = {13}, number = {49}, pages = {526--535}, doi = {10.3221/IGF-ESIS.49.49}, url = {https://doi.org/10.3221/IGF-ESIS.49.49}, issn = {1971-8993} }

RIS

TY - JOUR AU - R, Suresh Kumar AU - Rao, B N AU - K, Velusamy AU - S, Jalaldeen TI - Specimen Level and Component Level Simulations of Fatigue Crack Growth Behavior under Cyclic Bending JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2019 DA - 2019/06/24 VL - 13 IS - 49 SP - 526 EP - 535 DO - 10.3221/IGF-ESIS.49.49 UR - https://doi.org/10.3221/IGF-ESIS.49.49 SN - 1971-8993 ER -

Licence

Copyright © 2019 Suresh Kumar R, B N Rao, Velusamy K, Jalaldeen S.

Copyright 
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