Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

## Modeling fracture of fiber reinforced polymer

Ožbolt, Joško; Lacković, Vesna; Krolo, Joško
Modeling fracture of fiber reinforced polymer // International journal of fracture, 170 (2011), 1; 13-26 doi:10.1007/s10704-011-9598-6 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 521196 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Modeling fracture of fiber reinforced polymer

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

Izvornik
International journal of fracture (0376-9429) 170 (2011), 1; 13-26

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
fiber-reinforced composite; polyester resin; glass fibers; numerical modelling; finite elements; fracture; microplane model; rate sensitivity

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 mechanicsbased on the principles of irreversible thermodynamics. The matrix (polyester resin) is modeled byemploying a 3D rate sensitive microplane model. For modeling of fibers (glass) a uni-axial constitutive law is used. 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. Totalstress tensor is additively decomposed into the contribution of matrix and fibers, respectively. Tomodel de-lamination of fibers, the matrix is represented by periodically distributed initial imperfection over the pre-defined bands, which are parallel to fibers. Physically, this assumption accounts for the matrix-fiber interface in a smeared way. The input parameters of the model aredefined by the mechanical properties of matrix and fibers (elastic properties, strength and fractureenergy), the volume fraction of fibers and by their spatial orientation. The model is implemented into a 3D finite element code. To assure mesh objective results crack band method is employed. The model is first calibrated using a few basic test results. Subsequently, the model is validated with several numerical examples for specimens loaded in uni-axial tension, uni-axial compression and shear. Comparison between numerical and test results shows that the proposed model is able to predict the resistance and failure mode of complex fiber-reinforced composite for different orientation of fibers and different loading conditions with sufficient accuracy. Finally, based on the qualitative type of the finite element analysis, it is demonstrated that the strain rate dependency becomes more important when the angle between the fiber and load direction increases.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

Projekti:
082-0821504-1496 - Razvoj eksperimentalnih metoda istraživanja građevinskih konstrukcija (Rak, Mladenko, MZOS ) ( POIROT)
114-0000000-3145 - Numerički 3D kemo-higro-termo-mehanički model betona (Ožbolt, Joško, MZOS ) ( POIROT)

Ustanove:
Građevinski fakultet, Zagreb,
INSTITUT IGH, d.d.

Profili:

Joško Krolo (autor)

Joško Ožbolt (autor)

Vesna Lacković (autor)

#### Citiraj ovu publikaciju:

Ožbolt, Joško; Lacković, Vesna; Krolo, Joško
Modeling fracture of fiber reinforced polymer // International journal of fracture, 170 (2011), 1; 13-26 doi:10.1007/s10704-011-9598-6 (međunarodna recenzija, članak, znanstveni)
Ožbolt, J., Lacković, V. & Krolo, J. (2011) Modeling fracture of fiber reinforced polymer. International journal of fracture, 170 (1), 13-26 doi:10.1007/s10704-011-9598-6.
@article{article, author = {O\v{z}bolt, Jo\v{s}ko and Lackovi\'{c}, Vesna and Krolo, Jo\v{s}ko}, year = {2011}, pages = {13-26}, DOI = {10.1007/s10704-011-9598-6}, keywords = {fiber-reinforced composite, polyester resin, glass fibers, numerical modelling, finite elements, fracture, microplane model, rate sensitivity}, journal = {International journal of fracture}, doi = {10.1007/s10704-011-9598-6}, volume = {170}, number = {1}, issn = {0376-9429}, title = {Modeling fracture of fiber reinforced polymer}, keyword = {fiber-reinforced composite, polyester resin, glass fibers, numerical modelling, finite elements, fracture, microplane model, rate sensitivity} }
@article{article, author = {O\v{z}bolt, Jo\v{s}ko and Lackovi\'{c}, Vesna and Krolo, Jo\v{s}ko}, year = {2011}, pages = {13-26}, DOI = {10.1007/s10704-011-9598-6}, keywords = {fiber-reinforced composite, polyester resin, glass fibers, numerical modelling, finite elements, fracture, microplane model, rate sensitivity}, journal = {International journal of fracture}, doi = {10.1007/s10704-011-9598-6}, volume = {170}, number = {1}, issn = {0376-9429}, title = {Modeling fracture of fiber reinforced polymer}, keyword = {fiber-reinforced composite, polyester resin, glass fibers, numerical modelling, finite elements, fracture, microplane model, rate sensitivity} }

#### Časopis indeksira:

• Current Contents Connect (CCC)
• Web of Science Core Collection (WoSCC)
• Science Citation Index Expanded (SCI-EXP)
• SCI-EXP, SSCI i/ili A&HCI
• Scopus

#### Citati:

Contrast
Increase Font
Decrease Font
Dyslexic Font