Počet záznamů: 1
Recent trends in chemical and material sciences
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SYSNO ASEP 0558742 Druh ASEP M - Kapitola v monografii Zařazení RIV C - Kapitola v knize Název Approximate determination of J integral for cracked structures Tvůrce(i) Gajdoš, Lubomír (UTAM-F) RID, SAI
Šperl, Martin (UTAM-F) RID, SAI
Kuželka, J. (CZ)
Kec, J. (CZ)Celkový počet autorů 4 Zdroj.dok. Recent trends in chemical and material sciences, 9. - Chhattisgarh : B P International, 2022 / Khan F. - ISBN 978-93-5547-494-0 Rozsah stran s. 50-77 Poč.str. 28 s. Poč.výt. N Poč.str.knihy 95 Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. IN - Indie Klíč. slova crack ; stress intensity factor ; J integral ; stress concentration ; strain energy density ; Ramberg–Osgood relation ; linepipe steels X52 and X70 Obor OECD Materials engineering CEP FW01010021 GA TA ČR - Technologická agentura ČR Institucionální podpora UTAM-F - RVO:68378297 DOI 10.9734/bpi/rtcams/v9/2660B Anotace A method, designated as the GSM method, for the assessment of the J integral of cracked components subjected to uniform normal stress is compared with the Js procedure of the French RCC-MR construction code, designated here as the FC method, for centre cracked plates, single edge cracked plates, double edge cracked plates produced from X52 and X70 steels, and for longitudinally cracked pipe produced from X70 steel. The 'reference' values of the J integral for cracked plates were calculated using the EPRI method. The main objective of the study was to show that the GSM method provides reliable predictions of the J integral for cracked plates and pipes. A comparison of results obtained using the GSM and FC methods shows that both methods provide similar results, although in most cases, the GSM method results are slightly more conservative than those predicted by the FC method. Both techniques yield conservative results for most fracture configurations when compared to the 'reference' values of the J integral, while estimates for cracks with a relative length less than 1/8 were not found to be as conservative. External longitudinal semielliptical part-through cracks in X70 steel pipe were likewise predicted using the two approaches. When compared to FEM calculations and experimentally determined burst pressures, the magnitudes of the projected burst pressures were extremely similar to each other and were conservative. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2023 Elektronická adresa https://doi.org/10.9734/bpi/rtcams/v9/2660B
Počet záznamů: 1