skip to main content
Idioma:
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

Investigation of FE Model Size Definition for Surface Coating Application

Chen, Yanhong ; Zhuang, Weimin ; Wang, Shiwen ; Lin, Jianguo ; Balint, Daniel ; Shan, Debin

Chinese journal of mechanical engineering, 2012-09, Vol.25 (5), p.860-867 [Periódico revisado por pares]

Beijing: Chinese Mechanical Engineering Society

Texto completo disponível

Citações Citado por
  • Título:
    Investigation of FE Model Size Definition for Surface Coating Application
  • Autor: Chen, Yanhong ; Zhuang, Weimin ; Wang, Shiwen ; Lin, Jianguo ; Balint, Daniel ; Shan, Debin
  • Assuntos: Bearing capacity ; Coatings ; Computation ; Computer simulation ; Constitutive models ; Continuum damage mechanics ; Displacement ; Electrical Machines and Networks ; Electronics and Microelectronics ; Engineering ; Engineering Thermodynamics ; FE ; Finite element method ; Heat and Mass Transfer ; Instrumentation ; Machines ; Manufacturing ; Mathematical models ; Mechanical Engineering ; Mechanical properties ; Performance prediction ; Power Electronics ; Processes ; Protective coatings ; Solid mechanics ; Substrates ; Theoretical and Applied Mechanics ; 型号规格 ; 应用 ; 有限元模型 ; 涂层结构 ; 用户定义 ; 表面涂料 ; 预测模型
  • É parte de: Chinese journal of mechanical engineering, 2012-09, Vol.25 (5), p.860-867
  • Notas: surface coating system, continuum damage mechanics, failure prediction, finite element analysis
    An efficient prediction mechanical performance of coating structures has been a constant concern since the dawn of surface engineering. However, predictive models presented by initial research are normally based on traditional solid mechanics, and thus cannot predict coating performance accurately. Also, the high computational costs that originate from the exclusive structure of surface coating systems （a big difference in the order of coating and substrate） are not well addressed by these models. To fill the needs for accurate prediction and low computational costs, a multi-axial continuum damage mechanics （CDM）-based constitutive model is introduced for the investigation of the load bearing capacity and fracture properties of coatings. Material parameters within the proposed constitutive model are determined for a typical coating （TIN） and substrate （Cu） system. An efficient numerical subroutine is developed to implement the determined constitutive model into the commercial FE solver, ABAQUS, through the user-defined subroutine, VUMAT. By changing the geometrical sizes of FE models, a series of computations are carried out to investigate （1） loading features, （2） stress distributions, and （3） failure features of the coating system. The results show that there is a critical displacement corresponding to each FE model size, and only if the applied normal loading displacement is smaller than the critical displacement, a reasonable prediction can be achieved. Finally, a 3D map of the critical displacement is generated to provide guidance for users to determine an FE model with suitable geometrical size for surface coating simulations. This paper presents an effective modelling approach for the prediction of mechanical performance of surface coatings.
    11-2737/TH
  • Descrição: An efficient prediction mechanical performance of coating structures has been a constant concern since the dawn of surface engineering. However, predictive models presented by initial research are normally based on traditional solid mechanics, and thus cannot predict coating performance accurately. Also, the high computational costs that originate from the exclusive structure of surface coating systems （a big difference in the order of coating and substrate） are not well addressed by these models. To fill the needs for accurate prediction and low computational costs, a multi-axial continuum damage mechanics （CDM）-based constitutive model is introduced for the investigation of the load bearing capacity and fracture properties of coatings. Material parameters within the proposed constitutive model are determined for a typical coating （TIN） and substrate （Cu） system. An efficient numerical subroutine is developed to implement the determined constitutive model into the commercial FE solver, ABAQUS, through the user-defined subroutine, VUMAT. By changing the geometrical sizes of FE models, a series of computations are carried out to investigate （1） loading features, （2） stress distributions, and （3） failure features of the coating system. The results show that there is a critical displacement corresponding to each FE model size, and only if the applied normal loading displacement is smaller than the critical displacement, a reasonable prediction can be achieved. Finally, a 3D map of the critical displacement is generated to provide guidance for users to determine an FE model with suitable geometrical size for surface coating simulations. This paper presents an effective modelling approach for the prediction of mechanical performance of surface coatings.
  • Editor: Beijing: Chinese Mechanical Engineering Society
  • Idioma: Chinês;Inglês
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.