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虑及温度影响的CFRTP正交切削仿真与实验研究

魏钢 王福吉 贾振元 鞠鹏程 胡晓杭 付饶

魏钢, 王福吉, 贾振元, 等. 虑及温度影响的CFRTP正交切削仿真与实验研究[J]. 复合材料学报, 2024, 42(0): 1-13.
引用本文: 魏钢, 王福吉, 贾振元, 等. 虑及温度影响的CFRTP正交切削仿真与实验研究[J]. 复合材料学报, 2024, 42(0): 1-13.
WEI Gang, WANG Fuji, JIA Zhenyuan, et al. Simulation and experimental study of CFRTP orthogonal cutting considering the influence of temperature[J]. Acta Materiae Compositae Sinica.
Citation: WEI Gang, WANG Fuji, JIA Zhenyuan, et al. Simulation and experimental study of CFRTP orthogonal cutting considering the influence of temperature[J]. Acta Materiae Compositae Sinica.

虑及温度影响的CFRTP正交切削仿真与实验研究

基金项目: 国家自然科学基金(52090053;52105432;52130506);国家重点研发计划( 2018YFA0702803);大连市科技创新基金项目(2021RD08;2022JJ12GX027)
详细信息
    通讯作者:

    付饶,博士,教授,博士生导师,研究方向为复合材料加工 E-mail: r.fu@dlut.edu.cn

  • 中图分类号: TB332

Simulation and experimental study of CFRTP orthogonal cutting considering the influence of temperature

Funds: National Natural Science Foundation of China (52090053; 52105432; 52130506); National Key R&D Program of China (2018YFA0702803); Science and Technology Innovation Foundation of Dalian (2021RD08; 2022JJ12GX027)
  • 摘要: 碳纤维增强热塑性树脂基复合材料(CFRTP)是高端装备减重增效的优选材料。而CFRTP是一种典型的难加工材料,加工中损伤频发。本文对切削CFRTP时的材料去除及损伤形成过程进行了仿真与实验研究。CFRTP切削时易产生塑性变形,且材料性能受温度影响较大。本文建立CFRTP三维正交切削细观仿真模型,并引入J-C模型表征树脂在不同温度下的弹塑性变形。分析了温度及纤维方向角对CFRTP切削去除过程的影响。结果表明,常温下切削,0°及45°纤维方向角时,已加工面较平整,加工质量较好;90°及135°纤维方向角时,纤维弯曲程度明显增大,已加工面有裂纹产生,加工质量较差。高温下切削,0°纤维方向角时,已加工面出现未去除材料;45°纤维方向角时,已加工面出现裂纹,部分纤维未被切断;90°及135°纤维方向角时,已加工面出现更大开裂,工件出现明显的沿厚度方向上的面外变形,发生面外变形的材料难以被有效去除。

     

  • 图  1  碳纤维增强热塑性树脂基复合材料(CFRTP)仿真模型示意图

    Figure  1.  Schematic view of carbon fiber reinforced thermoplastic composites (CFRTP) simulation model

    图  2  CFRTP仿真模型的约束及载荷示意图

    Figure  2.  Constraints and load diagram of CFRTP simulation model

    图  3  CFRTP正交切削实验平台

    Figure  3.  Experimental setup of CFRTP orthogonal cutting

    图  4  CFRTP切削实验工件及刀具

    Figure  4.  Workpiece and tool of CFRTP cutting experiment

    图  5  CFRTP纤维方向角示意图

    Figure  5.  Schematic diagram of CFRTP fiber orientation angle

    图  6  CFRTP常温下成0°纤维方向角切削

    Figure  6.  CFRTP is cut into 0 ° fiber direction angle at room temperature

    图  7  CFRTP高温下成0°纤维方向角切削

    Figure  7.  CFRTP is cut into 0 ° fiber direction angle at high temperature

    图  8  CFRTP常温下成45°纤维方向角切削

    Figure  8.  CFRTP is cut into 45 ° fiber direction angle at room temperature

    图  9  CFRTP高温下成45°纤维方向角切削

    Figure  9.  CFRTP is cut into 45 ° fiber direction angle at high temperature

    图  10  CFRTP常温下成90°纤维方向角切削

    Figure  10.  CFRTP is cut into 90 ° fiber direction angle at room temperature

    图  11  CFRTP高温下成90°纤维方向角切削

    Figure  11.  CFRTP is cut into 90 ° fiber direction angle at high temperature

    图  12  CFRTP常温下成135°纤维方向角切削

    Figure  12.  CFRTP is cut into 135 ° fiber direction angle at room temperature

    图  13  CFRTP高温下成135°纤维方向角切削

    Figure  13.  CFRTP is cut into 135 ° fiber direction angle at high temperature

    图  14  CFRTP沿厚度方向上的面外变形

    Figure  14.  The out-of-plane deformation of CFRTP along the thickness direction

    图  15  温度及纤维方向角对CFRTP面外变形的影响

    Figure  15.  The effects of temperature and fiber orientation angle on the out-of-plane deformation of CFRTP

    表  1  CFRTP仿真模型中的材料性能参数[29-32]

    Table  1.   Material performance parameters in CFRTP simulation model[29-32]

    Material Property Value
    Carbon fber Elastic constants E11= 294 GPa, E22= E33= 30 GPa, μ11=μ22=μ33= 0.2
    G12= G13= 108 GPa, G23= 8.8 GPa
    Longitudinal strength Xt= 4500 MPa, Xc= 2800 MPa
    Transverse strength Yt= 200 MPa, Yc= 1000 MPa
    PEEK Elastic constants E= 4.1 GPa, μ= 0.35
    J-C plastic parameter A, B, C, n, m 132 MPa, 10 MPa, 0.034, 1.2, 0.7
    J-C failure parameter d1-d5 0.05, 1.2, 0.254, -0.009, 1
    Interface Cohesive stiffness k = 6.4 × 105 MPa∕mm
    Normal and Shear strength $t_{\text{n}}^0 = 43{\text{ }}MP{\text{a, }}t_{\text{s}}^0 = t_{\text{t}}^0 = 50{\text{ }}MP{\text{a}}$
    Fracture energy $G_n^C = 1.7{\text{ }}kJ/{{\text{m}}^2}{\text{, }}G_s^C = 2.0{\text{ }}kJ/{{\text{m}}^2}$
    B-K exponent η= 1.09
    EHM Elastic constants E11= 127 GPa, E22= E33= 10.3 GPa, μ11=μ22=μ33= 0.3
    G12= G13= 5.7 GPa, G23= 3.2 GPa
    Notes:E11, E22 and E33 are the elastic modulus of the material in three directions, respectively; μ11, μ22 and μ33 are Poisson's ratio in three directions of the material, respectively; G12, G13 and G23 are the shear modulus in three directions of the material, respectively; Xt is the tensile strength along the direction of carbon fiber; Xc is the compressive strength along the direction of carbon fiber; Yt is the tensile strength perpendicular to the direction of carbon fiber; Yc is the compressive strength perpendicular to the direction of carbon fiber; E and μ are the elastic modulus and Poisson's ratio of PEEK, respectively; A, B, C, n, m are the plastic parameters of J-C constitutive model; d1-d5 are the parameters of J-C damage model; k is the stiffness of the interface; $ {{t}}_{\text{n}}^{\text{0}} $、$ {{t}}_{\text{s}}^{\text{0}} $ and $ {{t}}_{{t}}^{\text{0}} $ are the strength of the interface in one normal direction and two tangential directions respectively; $ {{G}}_{\text{n}}^{\text{c}} $ and $ {{G}}_{\text{s}}^{\text{c}} $ are the interface normal and tangential fracture energy respectively; η is the interface B-K failure parameter.
    下载: 导出CSV

    表  2  CFRTP切削实验参数

    Table  2.   CFRTP cutting experimental parameters

    Parameter Value
    Fiber orientation angle 0°、45°、90°、135°
    Cutting temperature Room temperature (25℃)
    High temperature (200℃)
    Cutting speed/(mm·s−1) 8.33
    Cutting depth/μm 30
    Cutting length/mm 55
    下载: 导出CSV
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  • 收稿日期:  2024-01-16
  • 修回日期:  2024-02-01
  • 录用日期:  2024-02-07
  • 网络出版日期:  2024-03-16

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