Analitičke i numeričke metode za procenu verovatnoće interlaminarnog loma u Modu 1 kompozitnih struktura putem testa ljuštenja

  • Nadia Benchaib Univerzitet Sidi Bel Abes, Tehnološki fakultet, Odsek mašinstva, Laboratorija za fizičku mehaniku materijala, Sidi Bel Abes, Narodna Demokratska Republika Alžir https://orcid.org/0009-0005-8797-2279
  • 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
  • Malika Medjahdi Univerzitet Sidi Bel Abes, Laboratorija za primenu plazme, elektrostatike i elektromagnetne kompatibilnosti, Sidi Bel Abes, Narodna Demokratska Republika Alžir https://orcid.org/0000-0003-2940-4538
  • 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
  • Mokadem Salem Univerzitet Sidi Bel Abes, Tehnološki fakultet, Odsek mašinstva, Laboratorija za fizičku mehaniku materijala, Sidi Bel Abes, Narodna Demokratska Republika Alžir https://orcid.org/0000-0001-7558-714X
  • 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/vojtehg72-49978
Ključne reči: kompozit, delaminacija, test ljuštenja, metoda VCC, trajnost

Sažetak


Uvod/cilj: U radu je korišćen numerički i analitički pristup za predviđanje verovatnoće interlaminarnog loma u Modu 1 kompozitne strukture tokom testa ljuštenja.

Metode: Metoda konačnih elemenata, koja uključuje metodu virtuelnog zatvaranja prsline (Virtual Crack Closure – VCC), koristi se za ispitivanje delaminacije kompozitne strukture. Istražuju se efekti mnogih aspekata kao što su dimenzije, pravci pružanja vlakana i svojstva kompozita.

Rezultati: Numerički rezultati se u velikoj meri slažu sa analitičkim rešenjem iz aktuelne literature. Tehnika Monte Karlo predviđa funkciju distribucije oštećenja kompozita. Verovatnoća strukturnog loma procenjuje se uzimanjem u obzir i nesigurnosti modela i statističke nesigurnosti povezane sa osnovnim varijablama.

Zaključak: Funkcija gustine verovatnoće izvedena je uklapanjem specifičnih teorijskih modela u histogram. Trajnost kompozitnih struktura zavisi, pre svega, od njihovih mehaničkih svojstava.

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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 Nadia Benchaib, Belaïd Mechab, Malika Medjahdi, Aicha Metehri, Mokadem Salem, Bel Abbes Bachir Bouiadjra

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