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    A Phase Field Model for the Damage and Fracture of Multiple Network Elastomers

    Source: Journal of Applied Mechanics:;2022:;volume( 090 ):;issue: 002::page 21006-1
    Author:
    Zhao, Zeang
    ,
    Wang, Panding
    ,
    Duan, Shengyu
    ,
    Lei, Ming
    ,
    Lei, Hongshuai
    DOI: 10.1115/1.4056167
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This work develops a continuum phase field model for predicting the damage initiation and crack propagation in multiple network elastomers. Previous researches have revealed that failure of multiple network elastomers involves microscopic damage initiation by the chain scission of filler network and macroscopic fracture by penetrating crack of matrix network. However, most existing models for multiple network elastomers only deal with its finite deformation and strain softening process, which are unable to capture the initiation and propagation of cracks. In this work, to bridge the microscopic damage and the macroscopic fracture of multiple network elastomers in the finite deformation model, we incorporate the phase field variable of crack surface density to model the crack propagation and the internal damage variable to model the chain scission. By forming a multi-field variational framework, the developed model can be used to simulate the macroscopic deformation and fracture of multiple network elastomers. Through a finite element implementation of the phase field model, previous experiment results obtained from uniaxial tension and unilateral fracture can be well predicted. Moreover, experimentally observed damage zone formed by sacrificing filler network to achieve toughening effect is also numerically illustrated in simulation, giving much clearer pictures for the contributions of different energy dissipation mechanisms.
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      A Phase Field Model for the Damage and Fracture of Multiple Network Elastomers

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4292007
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    • Journal of Applied Mechanics

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    contributor authorZhao, Zeang
    contributor authorWang, Panding
    contributor authorDuan, Shengyu
    contributor authorLei, Ming
    contributor authorLei, Hongshuai
    date accessioned2023-08-16T18:28:22Z
    date available2023-08-16T18:28:22Z
    date copyright11/18/2022 12:00:00 AM
    date issued2022
    identifier issn0021-8936
    identifier otherjam_90_2_021006.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4292007
    description abstractThis work develops a continuum phase field model for predicting the damage initiation and crack propagation in multiple network elastomers. Previous researches have revealed that failure of multiple network elastomers involves microscopic damage initiation by the chain scission of filler network and macroscopic fracture by penetrating crack of matrix network. However, most existing models for multiple network elastomers only deal with its finite deformation and strain softening process, which are unable to capture the initiation and propagation of cracks. In this work, to bridge the microscopic damage and the macroscopic fracture of multiple network elastomers in the finite deformation model, we incorporate the phase field variable of crack surface density to model the crack propagation and the internal damage variable to model the chain scission. By forming a multi-field variational framework, the developed model can be used to simulate the macroscopic deformation and fracture of multiple network elastomers. Through a finite element implementation of the phase field model, previous experiment results obtained from uniaxial tension and unilateral fracture can be well predicted. Moreover, experimentally observed damage zone formed by sacrificing filler network to achieve toughening effect is also numerically illustrated in simulation, giving much clearer pictures for the contributions of different energy dissipation mechanisms.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleA Phase Field Model for the Damage and Fracture of Multiple Network Elastomers
    typeJournal Paper
    journal volume90
    journal issue2
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.4056167
    journal fristpage21006-1
    journal lastpage21006-10
    page10
    treeJournal of Applied Mechanics:;2022:;volume( 090 ):;issue: 002
    contenttypeFulltext
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