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## Modelnig Fracture of Fibre Reinforced Polymer

Ožbolt, Joško; Lacković, Vesna; Krolo, Joško
Modelnig Fracture of Fibre Reinforced Polymer // Advances in Fracture and Damage Mechanics X / Tonković, Zdenko ; Aliabadi, Feri M.H. (ur.).
Durnten-Zurich: Trans Tech Publications Ltd. Switzerland, 2011. str. 150-153 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)

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Naslov
Modelnig Fracture of Fibre Reinforced Polymer

Autori
Ožbolt, Joško ; Lacković, Vesna ; Krolo, Joško

Izvornik
Advances in Fracture and Damage Mechanics X / Tonković, Zdenko ; Aliabadi, Feri M.H. - Durnten-Zurich : Trans Tech Publications Ltd. Switzerland, 2011, 150-153

ISBN
978-3-03785-218-7

Skup
10th International Conference on Fracture and Damage Mechanics

Mjesto i datum
Dubrovnik, Hrvatska, 19-21. 09. 2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fiber-reinforced composite; polymer; glass fibers; numerical modeling; finite elements; fracture; microplane model.

Sažetak
In the present paper 3D rate sensitive constitutive model for modeling of laminate composites is presented. The model is formulated within the framework of continuum mechanics based on the principles of irreversible thermodynamics. The matrix (polymer) is modeled using 3D rate sensitive microplane model. For modeling of fibers (glass) a uni-axial constitutive law is employed. The fibers are assumed to be uniformly smeared-out over the matrix. The formulation is based on the assumption of strain compatibility between matrix and fibers. To account for the de-lamination of fibers, the matrix is represented by the periodically distributed bands with non-uniform strength properties over the band width. The input parameters of the model are defined by the mechanical properties of matrix and fibers (elastic properties, strength and fracture energy), the volume content of fibers and by their orientation in 3D space. The model is implemented into a 3D finite element code. To assure mesh objective results, the localization limiter is based on the assumption of constant energy dissipation within each finite element, i.e. the crack band method is used. The performance of the model is shown on one numerical example for specimens loaded in uni-axial tension. It is demonstrated that the proposed model is able to realistically predict the resistance and failure mode of complex fiber-reinforced composite for different orientation of fibers.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

Projekti:
082-0821504-1496 - Razvoj eksperimentalnih metoda istraživanja građevinskih konstrukcija (Rak, Mladenko, MZOS ) ( POIROT)

Ustanove:
Građevinski fakultet, Zagreb

Profili:

Joško Krolo (autor)

Joško Ožbolt (autor)

Vesna Lacković (autor)

#### Citiraj ovu publikaciju:

Ožbolt, Joško; Lacković, Vesna; Krolo, Joško
Modelnig Fracture of Fibre Reinforced Polymer // Advances in Fracture and Damage Mechanics X / Tonković, Zdenko ; Aliabadi, Feri M.H. (ur.).
Durnten-Zurich: Trans Tech Publications Ltd. Switzerland, 2011. str. 150-153 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Ožbolt, J., Lacković, V. & Krolo, J. (2011) Modelnig Fracture of Fibre Reinforced Polymer. U: Tonković, Z. & Aliabadi, F. (ur.)Advances in Fracture and Damage Mechanics X.
@article{article, year = {2011}, pages = {150-153}, keywords = {Fiber-reinforced composite, polymer, glass fibers, numerical modeling, finite elements, fracture, microplane model.}, isbn = {978-3-03785-218-7}, title = {Modelnig Fracture of Fibre Reinforced Polymer}, keyword = {Fiber-reinforced composite, polymer, glass fibers, numerical modeling, finite elements, fracture, microplane model.}, publisher = {Trans Tech Publications Ltd. Switzerland}, publisherplace = {Dubrovnik, Hrvatska} }
@article{article, year = {2011}, pages = {150-153}, keywords = {Fiber-reinforced composite, polymer, glass fibers, numerical modeling, finite elements, fracture, microplane model.}, isbn = {978-3-03785-218-7}, title = {Modelnig Fracture of Fibre Reinforced Polymer}, keyword = {Fiber-reinforced composite, polymer, glass fibers, numerical modeling, finite elements, fracture, microplane model.}, publisher = {Trans Tech Publications Ltd. Switzerland}, publisherplace = {Dubrovnik, Hrvatska} }

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