Određivanje otpornosti prema lomu materijala cevovoda primenom epruveta oblika prstena

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Bojan Međo Walid Musrati Nenad Gubeljak Primož Štefane Miodrag Arsić Marko Rakin

Apstrakt

Integritet cevovoda i drugih elemenata opreme pod pritiskom je veoma važan za pouzdan i bezbedan rad postrojenja u procesnoj industriji. Otkazi opreme mogu, uz ugrožavanje sigurnosti zaposlenih i ekonomske gubitke, u nekim slučajevima izazvati ozbiljne ekološke posledice, ukoliko dođe do ispuštanja otrovnih, zapaljivih ili na drugi način opasnih fluida. Stoga, veoma je važno poznavati ponašanje cevi pri lomu ili drugim oblicima otkaza. Problem pri korišćenju standardnih epruveta predstavlja potrebna debljina uzorka, kao posledica zahteva za dominantnim ravnim stanjem deformacije. U ovom radu, otpornost prema lomu je određena primenom epruveta oblika prstena izloženih savijanju, kao nestandardnih epruveta predloženih u prethodnom periodu. Početni koncentrator napona (žleb ili zamorna prslina) je formiran u uzdužnom pravcu; opterećenje ove epruvete simulira dejstvo unutrašnjeg pritiska u cevi. Epruvete su izrađene od cevi za primenu na povišenoj temperaturi. Rezultati pokazuju da se epruvete oblika prstena mogu koristiti za karakterizaciju loma materijala cevovoda, posebno za tankozidne cevi koje nisu pogodne za izradu standardnih epruveta mehanike loma.

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Kako citirati
MEĐO, Bojan et al. Određivanje otpornosti prema lomu materijala cevovoda primenom epruveta oblika prstena. Zbornik Međunarodnog kongresa o procesnoj industriji – Procesing, [S.l.], v. 31, n. 1, p. 35-40, june 2018. Dostupno na: <https://izdanja.smeits.rs/index.php/ptk/article/view/3440>. Datum pristupa: 10 dec. 2018 doi: https://doi.org/10.24094/ptk.018.31.1.35.
Sekcija
Projektovanje, izgradnja, eksploatacija, i održavanje procesnih postrojenja

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