Novo ispitivanje korišćeno za predviđanje pritiska prskanja prave korodirane cevi pod unutrašnjim pritiskom

  • Aicha Metehri Univerzitet Sidi Bel Abes, Tehnološki fakultet, Odsek mašinstva, Laboratorija za fizičku mehaniku materijala, Sidi Bel Abes, Narodna Demokratska Republika Alžir https://orcid.org/0009-0002-2221-6833
  • Belaïd Mechab Univerzitet Sidi Bel Abes, Tehnološki fakultet, Odsek mašinstva, Laboratorija za fizičku mehaniku materijala, Sidi Bel Abes, Narodna Demokratska Republika Alžir https://orcid.org/0009-0000-7483-5527
  • Bel Abbes Bachir Bouiadjra Univerzitet Sidi Bel Abes, Tehnološki fakultet, Odsek mašinstva, Laboratorija za fizičku mehaniku materijala, Sidi Bel Abes, Narodna Demokratska Republika Alžir https://orcid.org/0000-0002-1925-7194
DOI: https://doi.org/10.5937/vojtehg72-50357
Ključne reči: defekat korozije, čelična cev, unutrašnji pritisak, lom, napon, modelovanje

Sažetak


Uvod/cilj: Sve je veće interesovanje za integritet cevovoda kao i za njegov efekat na ekonomske i sigurnosne aspekte. U ovoj studiji ispituje se proces procene korozije radi identifikacije preostalog strukturnog integriteta korodiranih tankozidnih cevovoda.

Metode: Kreiran je model evaluacije korozije koji može da analizira deterioraciju čeličnih cevi usled unutrašnjeg pritiska. Korišćen je pristup konačnih elemenata radi izrade modela za predviđanje pritiska prskanja pravih cevi bez defekata. Primenjena je analitička i numerička analiza, kao i matematički metod ekstrapolacije.

Rezultati: Rad prikazuje uticaj nekoliko faktora na integritet cevi kao što su dubina defekta, debljina cevi, oblik, veličina i pozicija defekta, kao i međusobni uticaj unutrašnjih i spoljašnjih defekata. Prikazan je i uticaj spoljašnjih defekata na sveukupni integritet.

Zaključak: Zaključuje se da se model kriterijuma loma cevi usled korozije (PCORRC) i model predstavljen u ovoj studiji podudaraju sa analitičkim rešenjem iz literature. To ima ogroman značaj u oblasti projektovanja konstrukcija i procene sigurnosti.

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Objavljeno
2024/11/17
Broj časopisa
Vol. 72 Br. 4 (2024): oktobar - decembar
Rubrika
Originalni naučni radovi

Sva prava zadržana (c) 2024 Aicha Metehri, Belaïd Mechab, Bel Abbes Bachir Bouiadjra

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