Extended finite element numerical analysis of scale effect in notched glass fiber reinforced epoxy composite

• Autorzy: Abdellah M. Y. , Alsoufi M. S. , Hassan M. K. , Ghulman H. A. , Mohamed A. F.

Identyfikatory

DOI

10.1515/meceng-2015-0013

Warianty tytułu

PL

Rozszerzona analiza numeryczna metodą elementów skończonych efektu skali w epoksydowym kompozycie z karbem wzmocnionym włóknem szklanym

• Języki publikacji: EN

Abstrakty

EN

Nominal strength reduction in cross ply laminates of [0/90]2s is observed in tensile tests of glass fiber composite laminates having central open hole of diameters varying from 2 to 10 mm. This is well known as the size effect. The extended finite element method (XFEM) is implemented to simulate the fracture process and size effect (scale effect) in the glass fiber reinforced polymer laminates weakened by holes or notches. The analysis shows that XFEM results are in good agreement with the experimental results specifying nominal strength and in good agreement with the analytical results based on the cohesive zone model specifying crack opening displacement and the fracture process zone length.

PL

Zmniejszenie nominalnej wytrzymałości laminatu warstwowego z poprzecznym ułożeniem włókien typu [0/90]2s jest obserwowane dla naprężeń rozciągających w laminatach kompozytowych z włóknem szklanym mających centralny otwór o średnicy od 2 do 10 mm. Jest to dobrze znany efekt rozmiaru (efekt skali). Rozszerzona analiza metodą elementów skończonych (XFEM) została zastosowana w celu symulacji procesu pękania i efektu skali w polimerowych laminatach z włóknem szklanym osłabionych obecnością karbu lub otworu. W pracy wykazano, że wyniki metody XFEM dotyczące wytrzymałości nominalnej są zgodne z danymi eksperymentalnymi, dobrze zgadzają sią z wynikami analitycznymi opartymi na modelu strefy spójnej i pozwalają określić przemieszczenie otworu szczeliny i długość strefy procesu pęknięcia.

Słowa kluczowe

EN

XFEM; extended finite element method; composite laminate; fracture processing zone; crack opening displacement

PL

XFEM; rozszerzona metoda elementów skończonych; laminat kompozytowy; strefa procesu pęknięcia; przemieszczenie otworu szczeliny

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2015
• Tom: Vol. LXII, nr 2
• Strony: 217--236
• Opis fizyczny: Bibliogr. 51 poz., rys., tab.

Twórcy

autor

Abdellah M. Y.

• Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, Egypt, 83521

autor

Alsoufi M. S.

• Mechanical Engineering Dept., College of Engineering and Islamic Architecture, Umm Al-Qura University, KSA

autor

Hassan M. K.

• Production Engineering and design Department, Faculty of Engineering, Minia Universities, Minia, Egypt, 61111

autor

Ghulman H. A.

• Mechanical Engineering Dept., College of Engineering and Islamic Architecture, Umm Al-Qura University, KSA

autor

Mohamed A. F.

• Mechanical Engineering Dept., College of Engineering and Islamic Architecture, Umm Al-Qura University, KSA

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