Detail publikace
Výpočetní odhad chování mikrotrhliny v polypropylenovém kopolymeru
HUTAŘ, P. MAJER, Z. KNÉSL, Z. NÁHLÍK, L. ŠESTÁKOVÁ, L. PROD'HOMME, G.
Český název
Výpočetní odhad chování mikrotrhliny v polypropylenovém kopolymeru
Anglický název
Computational estimation of micro-crack behaviour in polypropylene copolymer
Typ
abstrakt
Jazyk
en
Originální abstrakt
Polymeric particulate composites are frequently used in many engineering applications. The composite was modeled as a three-phase continuum-matrix, interphase and particle. The presence of particles significantly influences the cure reaction, resulting in the formation of the third phase known as the interphase, which possess property distinct from those of the matrix and the particle. Computation of the internal stress and strain fields in the micro-structural level of the studied composite and understanding of micro-cracks behaviour in the interaction with particles is the first step to understanding the global behaviour of the composite based on micro-structural morphology. Therefore, particle reinforced composite has been modelled as a three-phase material with homogenously distributed coated particles and numerically studied on the microscopic scale using finite element modelling.
Český abstrakt
V dnešní době se stále častěji využívají kompozitní materiály. Tato práce je zaměřena na studium vlivu přítomnosti částice v polymerní matrici. Přidáním částic dochází ke vzniku další třetí fáze – mezifáze. Ta může výrazně ovlivnit lomově-mechanické chování kompozitu jako celku.
Anglický abstrakt
Polymeric particulate composites are frequently used in many engineering applications. The composite was modeled as a three-phase continuum-matrix, interphase and particle. The presence of particles significantly influences the cure reaction, resulting in the formation of the third phase known as the interphase, which possess property distinct from those of the matrix and the particle. Computation of the internal stress and strain fields in the micro-structural level of the studied composite and understanding of micro-cracks behaviour in the interaction with particles is the first step to understanding the global behaviour of the composite based on micro-structural morphology. Therefore, particle reinforced composite has been modelled as a three-phase material with homogenously distributed coated particles and numerically studied on the microscopic scale using finite element modelling.
Klíčová slova česky
víceúrovňové modelování, lomová mechanika, reprezentativní jednotka buňky, mikrotrhliny
Klíčová slova anglicky
multiscale modelling, fracture mechanics, representative unit cell, microcracks
Vydáno
30.06.2008
Místo
Barcelona, Spain (Venice, Italy)
Strany od–do
1–2
Počet stran
2