Chinese Journal of Mechanical Engineering >

2018 , Vol. 31 >Issue 3: 51 - 51

DOI: https://doi.org/10.1186/s10033-018-0250-5

Intelligent Manufacturing Technology

3D Progressive Damage Based Macro-Mechanical FE Simulation of Machining Unidirectional FRP Composite

  • Yan-Li He ,
  • Joao-Paulo Davim ,
  • Hong-Qian Xue
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  • 1. Key Laboratory of Contemporary Design and Integrated Manufacturing Technology of Ministry of Education, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
    2. Department of Mechanical Engineering, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal

收稿日期: 2016-05-21

  网络出版日期: 2019-07-23

基金资助

Supported by Science Foundation of NPU (Grant No. 3102015JCS05009) and Chinese Foreign Talents Introduction and Academic Exchange Program (Grant No. B13044)

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3D Progressive Damage Based Macro-Mechanical FE Simulation of Machining Unidirectional FRP Composite

  • Yan-Li He ,
  • Joao-Paulo Davim ,
  • Hong-Qian Xue
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  • 1. Key Laboratory of Contemporary Design and Integrated Manufacturing Technology of Ministry of Education, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
    2. Department of Mechanical Engineering, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal

Received date: 2016-05-21

  Online published: 2019-07-23

Supported by

Supported by Science Foundation of NPU (Grant No. 3102015JCS05009) and Chinese Foreign Talents Introduction and Academic Exchange Program (Grant No. B13044)

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摘要

Finite element (FE) simulation is a powerful tool for investigating the mechanism of machining fiber-reinforced polymer composite (FRP). However in existing FE machining simulation works, the two-dimensional (2D) progressive damage models only describe material behavior in plane stress, while the three-dimensional (3D) damage models always assume an instantaneous stiffness reduction pattern. So the chip formation mechanism of FRP under machining is not fully analyzed in general stress state. A 3D macro-mechanical based FE simulation model was developed for the machining of unidirectional glass fiber reinforced plastic. An energy based 3D progressive damage model was proposed for damage evolution and continuous stiffness degradation. The damage model was implemented for the Hashin-type criterion and Maximum stress criterion. The influences of the failure criterion and fracture energy dissipation on the simulation results were studied. The simulated chip shapes, cutting forces and sub-surface damages were verified by those obtained in the reference experiment. The simulation results also show consistency with previous 2D FE models in the reference. The proposed research provides a model for simulating FRP material behavior and the machining process in 3D stress state.

关键词： FRP; Macro mechanical; Machining; Finite element; Progressive damage

本文引用格式

Yan-Li He , Joao-Paulo Davim , Hong-Qian Xue . 3D Progressive Damage Based Macro-Mechanical FE Simulation of Machining Unidirectional FRP Composite[J]. Chinese Journal of Mechanical Engineering, 2018 , 31(3) : 51 -51 . DOI: 10.1186/s10033-018-0250-5

Abstract

Finite element (FE) simulation is a powerful tool for investigating the mechanism of machining fiber-reinforced polymer composite (FRP). However in existing FE machining simulation works, the two-dimensional (2D) progressive damage models only describe material behavior in plane stress, while the three-dimensional (3D) damage models always assume an instantaneous stiffness reduction pattern. So the chip formation mechanism of FRP under machining is not fully analyzed in general stress state. A 3D macro-mechanical based FE simulation model was developed for the machining of unidirectional glass fiber reinforced plastic. An energy based 3D progressive damage model was proposed for damage evolution and continuous stiffness degradation. The damage model was implemented for the Hashin-type criterion and Maximum stress criterion. The influences of the failure criterion and fracture energy dissipation on the simulation results were studied. The simulated chip shapes, cutting forces and sub-surface damages were verified by those obtained in the reference experiment. The simulation results also show consistency with previous 2D FE models in the reference. The proposed research provides a model for simulating FRP material behavior and the machining process in 3D stress state.

Key words： FRP; Macro mechanical; Machining; Finite element; Progressive damage

参考文献

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