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Pregled bibliografske jedinice broj: 957995

The effect of material density on load rate sensitivity in nonlinear viscoelastic material models


Kožar, Ivica; Rukavina, Tea
The effect of material density on load rate sensitivity in nonlinear viscoelastic material models // Archive of applied mechanics, 89 (2019), 5; 873-883 doi:10.1007/s00419-018-1448-9 (međunarodna recenzija, članak, znanstveni)


Naslov
The effect of material density on load rate sensitivity in nonlinear viscoelastic material models

Autori
Kožar, Ivica ; Rukavina, Tea

Izvornik
Archive of applied mechanics (0939-1533) 89 (2019), 5; 873-883

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

Ključne riječi
Nonlinear softening Maxwell material model ; Nonlinear softening Kelvin material model ; Load rate sensitivity ; Global parameter sensitivity

Sažetak
This work presents the results of a numerical sensitivity analysis of material density on crack propagation in nonlinear viscoelastic softening material models. Two basic material models are analyzed: Maxwell and Kelvin material models, under the loading with changing rate (slow or fast impact loading). The material is discretized as a lattice model, and the analysis is performed on simple examples consisting of several lattice bars. The mathematical description is based on the theory of dynamical systems, i.e., it is a system of nonlinear differential equations for Kelvin, and a system of nonlinear differential-algebraic equations for Maxwell material model. Sensitivity of displacements on mass and load rate accompanies the analysis.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-9068 - Višeskalni model betona s identifikacijom parametara (Ivica Kožar, )

Ustanove
Građevinski fakultet, Rijeka

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


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