Method for Determining Crack Resistance of Structural Materials at Quasi-Brittle Fracture After Stable Crack Growth

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Abstract

The cases in laboratory practice of experimental investigations of fracture toughness are considered, when as a result of the tests the determination characteristics of fracture toughness (KJC, JC, JR-curves, δR-curves) cannot be performed correctly in accordance with the requirements of existing standards. A simplified technique for constructing JR-curves has been developed, allowing in these cases to obtain the necessary characteristics of crack resistance (JR-curves, J1C, JC, δR-curves) and thereby significantly increase the information content of the tests carried out. Methodological recommendations on conducting tests and processing of their results are given. Approbation and verification of the proposed method have been carried out.

About the authors

V. I. Smirnov

NRC “Kurchatov Institute” – CRISM “Prometey”

Author for correspondence.
Email: mail@crism.ru
Cand Sc. (Eng) 49 Shpalernaya St, 191015 St Petersburg, Russian Federation

A. I. Minkin

NRC “Kurchatov Institute” – CRISM “Prometey”

Email: mail@crism.ru
49 Shpalernaya St, 191015 St Petersburg, Russian Federation

B. Z. Margolin

NRC “Kurchatov Institute” – CRISM “Prometey”

Email: mail@crism.ru
Dr Sc. (Eng) 49 Shpalernaya St, 191015 St Petersburg, Russian Federation

References

  1. АSTM E 1820–23. Standard Test Method for Measurement of Fracture Toughness.
  2. ISO 12135:2016. Metallic Materials – Unified method of test for the determination of quasistatic fracture toughness.
  3. BS 7448-4:1997. Fracture mechanics toughness tests. Part 4: Method for determination of fracture resistance curves and initiation values for stable crack extension in metallic materials.
  4. JSME S001. Standard Method of Test for Elastic-Plastic Fracture Toughness JIc (in Japanese).
  5. ГОСТ 25.506–85. Расчеты и испытания на прочность. Методы механических испытаний металлов. Определение характеристик трещиностойкости (вязкости разрушения) при статическом нагружении.
  6. ГОСТ Р 59115.6–2021. Обоснование прочности оборудования и трубопроводов атомных энергетических установок. Методы определения характеристик трещиностойкости конструкционных материалов.
  7. СТО-07516250-233–2012. Определение параметров вязкости разрушения (трещиностойкости) при статическом нагружении стали и сварных соединений. Методика испытаний.
  8. ASTM E 1921–23. Standard Test Method for Determination of Reference Temperature, T0, for Ferritic Steels in the Transition Range.
  9. Landes J. D., Zhou Z., Lee K., Herrera R. Normalization Method for Developing JR Curves with the LMN Function // Journal of Testing and Evaluation, JTEVA. – July 1991. – V. 19, N 4. – P. 305–311.
  10. Rybakina O. G., Strogonova O. A. A Method of the JR-curve Determination Using Linear Normalization // Advances in Solid and Fracture Mechanics. Advanced Structured Materials. – 2022. – V. 180. – P. 211–220.
  11. ASTM E 561–22. Standard Test Method for KR Curve Determination.
  12. Irwin G. R. Analysis of Stresses and Strains near the End of a Crack Traversing a Plate // Journal of Applied Mechanics. – 1957. – N 24. – P. 361–364.
  13. Tarnowski K. M. Measuring Crack Initiation and Growth in the Presence of Large Strains using the Potential Drop Technique // Thesis for the Degree of Doctor of Philosophy. – Department of Mech. Eng. Imperial College, London, 2016.
  14. Kumar J., Mukhopadhyay C., Kumar V. Monitoring of Elastoplastic Fracture Behavior of HSLA Steel Using Acoustic Emission Testing // Materials Evaluation. – 2011. – V. 79. – P. 383–390.
  15. Lee J.-H. Applicability of Ultrasonic Technique for Evaluation of Elastic Plastic Fracture Toughness of High Manganese Steel at Low Temperatures // Journal of Mechanical Science and Technology. – 1995. – V. 9. – P. 1–7.
  16. Henschel S., Krüger L. Temperature Dependent Crack Initiation of 42CrMo4 Steel at High Loading Rates // EPJ Web of Conferences DYMAT 2018. – 2018. – V. 183.

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