Tensile validation tests with failure criteria comparison for various GFRP laminates

• Autorzy: Wiczenbach Tomasz , Ferenc Tomasz

Identyfikatory

DOI

10.24425/ace.2021.138069

Warianty tytułu

PL

Walidacja testów rozciągania z porównaniem kryteriów zniszczenia dla różnych laminatów GFRP

• Języki publikacji: EN

Abstrakty

EN

The paper studies the mechanical properties of glass fibre reinforced polymers (GFRP) with various types and orientation of reinforcement. Analyzed specimens manufactured in the infusion process are made of polymer vinyl ester resin reinforced with glass fibres. Several samples were examined containing different plies and various fibres orientation [0, 90] or [+45, –45]. To assess the mechanical parameters of laminates, a series of experimental tests were carried out. The samples were subjected to the uniaxial tensile tests, which allowed us to obtain substitute parameters, such as modulus of elasticity or strength. After all, results from experiments were used to validate the numerical model. A computational model was developed employing ABAQUS software using the Finite Element Method (FEM). The analysis was performed to verify and compare the results obtained from numerical calculations with the experiments. Additionally, the following failure criteria were studied, based on the index of failure IF Maximum Stress, Maximum Strain, Tsai-Hill, and Tsai-Wu. The results confirmed the assumptions made for the footbridge's design purpose, which is made using examined material. Moreover, comparing the experimental and numerical results found that in the linear-elastic range of the material, they are consistent, and there is no significant difference in results.

PL

W artykule zbadano właściwości mechaniczne polimerów wzmocnionych włóknem szklanym (GFRP) o różnych typach i orientacji zbrojenia. Analizowane próbki, wytworzone w procesie infuzji, wykonane są z polimerowej żywicy winyloestrowej wzmocnionej włóknem szklanym. Zbadano kilka próbek zawierających różną liczbę warstw, a także różną orientację włókien [0/90] lub [+45/–45]. Aby ocenić parametry mechaniczne laminatów, przeprowadzono szereg badań eksperymentalnych. Próbki poddano testom jednoosiowego rozciągania, co pozwoliło uzyskać parametry zastępcze, takie jak moduł sprężystości czy wytrzymałość. Wyniki eksperymentów posłużyły do walidacji modelu numerycznego. Model obliczeniowy opracowano za pomocą oprogramowania ABAQUS z wykorzystaniem metody elementów skończonych (MES). Analizę przeprowadzono w celu zweryfikowania i porównania wyników otrzymanych z obliczeń numerycznych z wynikami eksperymentów. Dodatkowo zbadano następujące kryteria zniszczenia, w oparciu o wskaźnik zniszczenia IF: Maksymalne naprężenie, Maksymalne odkształcenie, Tsai-Hill i Tsai-Wu. Wyniki potwierdziły założenia przyjęte przy projektowaniu kładki, którą wykonano z badanego materiału. Ponadto porównując wyniki eksperymentalne i numeryczne stwierdzono, że w zakresie liniowo-sprężystym materiału są one spójne i nie ma istotnych różnic w wynikach.

Słowa kluczowe

EN

composite structure; failure criteria; GFRP laminate; static tension; uniaxial tensile test; unidirectional test; validation

PL

materiał kompozytowy; kryterium zniszczenia; laminat GFRP; próba rozciągania statyczna; test jednoosiowego rozciągania; rozciąganie jednoosiowe; walidacja

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2021
• Tom: Vol. 67, nr 3
• Strony: 525--541
• Opis fizyczny: Bibliogr. 26 poz., il., tab.

Twórcy

autor

Wiczenbach Tomasz

• Gdańsk University of Technology, Faculty of Civil and Environmental Engineering, Gdańsk

• https://orcid.org/0000-0001-8482-0580

autor

Ferenc Tomasz

• Gdańsk University of Technology, Faculty of Civil and Environmental Engineering, Gdańsk

• https://orcid.org/0000-0002-2551-7570

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