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 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 881418

Časopis

Autori: Damjanović, Darko; Kozak, Dražan; Marsoner, Stefan; Gubeljak, Nenad
Naslov: Residual stress state in pipe cut ring specimens for fracture toughness testing
Izvornik: Materialprufung (0025-5300) 59 (2017); 530-535
Vrsta rada: članak
Ključne riječi: residual stress, pipe, incremental hole drilling method (IHDM), splitting method, X-ray diffraction (XRD), ring specimen, pipe ring notched bend specimen (PRNB)
Sažetak:
Thin-walled pipes are not suitable for measuring fracture toughness parameters of vital importance because longitudinal crack failure is the most common failure mode in pipes. This is due to the impossibility to manufacture standard specimens for measuring fracture toughness, such as SENB or CT specimens, from the thin wall of the pipe. Previous works noticed this problem, but until now, a good and convenient solution has not been found or developed. To overcome this problem, very good alternative solution was proposed, the so- called pipe ring notched bend specimen (PRNB) [1-5]. Until now, only the idealized geometry PRNB specimen is analyzed, i. e., a specimen which is not cut out from an actual pipe but produced from steel plate. Based on that, residual stresses are neglected along with the imperfections in geometry (elliptical and eccentricity). The aim of this research is to estimate the residual stress state(s) in real pipes used in the boiler industry produced by hot rolling technique. These types of pipes are delivered only in normalized condition, but not stress relieved. Therefore, there are residual stresses present due to the manufacturing technique, but also due to uneven cooling after the production process. Within this paper, residual stresses are estimated by three methods: the incremental hole drilling method (IHMD), X-ray diffraction (XRD) and the splitting method (SM). Knowing the residual stress state in the ring specimen, it is possible to assess their impact on fracture toughness measured on the corresponding PRNB specimen(s).
Projekt / tema: 152-1201910-1909
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Strojarstvo
URL Internet adrese: http://www.hanser-elibrary.com/doi/abs/10.3139/120.111038
Broj citata:
Altmetric:
DOI: 10.3139/120.111038
URL cjelovitog teksta:
Časopis izlazi u samo elektroničkom izdanju: NE
Google Scholar: Residual stress state in pipe cut ring specimens for fracture toughness testing
Upisao u CROSBI: Darko Damjanović (ddamjan@sfsb.hr), 19. Lip. 2017. u 11:01 sati



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