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肋板增强泡沫分区填充薄壁管横向压溃性能

张旻 杨轶凡 裴文杰 王士龙 黄志来

张旻, 杨轶凡, 裴文杰, 等. 肋板增强泡沫分区填充薄壁管横向压溃性能[J]. 复合材料学报, 2023, 40(8): 4491-4505. doi: 10.13801/j.cnki.fhclxb.20220927.002
引用本文: 张旻, 杨轶凡, 裴文杰, 等. 肋板增强泡沫分区填充薄壁管横向压溃性能[J]. 复合材料学报, 2023, 40(8): 4491-4505. doi: 10.13801/j.cnki.fhclxb.20220927.002
ZHANG Min, YANG Yifan, PEI Wenjie, et al. Lateral crushing performance of rib-reinforced foam partition-filled thin-walled tube[J]. Acta Materiae Compositae Sinica, 2023, 40(8): 4491-4505. doi: 10.13801/j.cnki.fhclxb.20220927.002
Citation: ZHANG Min, YANG Yifan, PEI Wenjie, et al. Lateral crushing performance of rib-reinforced foam partition-filled thin-walled tube[J]. Acta Materiae Compositae Sinica, 2023, 40(8): 4491-4505. doi: 10.13801/j.cnki.fhclxb.20220927.002

肋板增强泡沫分区填充薄壁管横向压溃性能

doi: 10.13801/j.cnki.fhclxb.20220927.002
基金项目: 国家自然科学基金青年项目(11802002)
详细信息
    通讯作者:

    王士龙,博士,副教授,硕士生导师,研究方向为轻质结构的耐撞性优化设计 E-mail: wshilong2012@163.com

  • 中图分类号: TB333

Lateral crushing performance of rib-reinforced foam partition-filled thin-walled tube

Funds: National Natural Science Foundation for the Youth of China (11802002)
  • 摘要: 利用3D打印技术制备了聚乳酸(PLA)十字形肋板和基于三维Voronoi的闭孔泡沫结构,提出了一种肋板增强泡沫分区填充薄壁管结构(RFFT),研究了该结构在准静态横向荷载作用下的压溃性能。结果表明:在横向压溃中,RFFT结构组成元件的失效次序和元件之间的相互作用随横向荷载的作用区域而改变,使结构的力-位移曲线的响应和结构的压溃性能(峰值荷载、平均压溃荷载、比吸能、荷载一致性)呈现典型的各向异性特征。针对两种典型受载情形(即横向荷载作用于结构填充区和非填充区),结构的比吸能相比于空管结构分别提高了125.16%和129.22%,而峰值荷载相比于完全填充结构降低了5.54%和31.28%。进一步运用细观有限元模型分析了设计参数的影响规律并揭示了分区泡沫填充结构的能量吸收机制。最后,引入复合比例评估法对RFFT结构的多个耐撞性指标进行综合评估。

     

  • 图  1  肋板增强泡沫分区填充管(RFFT)的设计示意图 (a) 和横向加载方案 (b)

    D—Diameter; H—Height; T—Thickness; θ—Angle; t—Plate thickness

    Figure  1.  Design schematic of rib-reinforced foam partition-filled thin-walled tube (RFFT) (a) and the lateral compression loading scheme (b)

    图  2  (a) 空管(ET);(b) 加肋管(RT);(c) 泡沫填充管(FFT);(d) 荷载作用于结构非填充区时肋板增强泡沫分区填充管(RFFT-90)

    Figure  2.  (a) Empty tube (ET); (b) Ribbed tube (RT); (c) Foam-filled tube (FFT); (d) Rib-reinforced foam partition-filled thin-walled tube with load acting on the foam-filled region (RFFT-90)

    图  3  聚乳酸(PLA)材料的拉伸应力-应变曲线

    Figure  3.  Tensile stress-strain curve of polylactic acid (PLA) material

    图  4  试样ET (a)、RT (b)、FFT (c)、RFFT-0 (d)、RFFT-90 (e)的变形过程

    εN—Nominal strain

    Figure  4.  Deformation process of specimens ET (a), RT (b), FFT (c), RFFT-0 (d), RFFT-90 (e)

    图  5  试样的荷载-位移曲线

    Figure  5.  Force-displacement curves of the specimens

    图  6  实验中所设计结构的平均压溃载荷Fm和峰值压溃载荷Fp (a) 及比质量能量吸收ES和压溃荷载效率η (b) 的对比

    Figure  6.  Comparison of mean crush force Fm and peak crush force Fp (a) and specific energy absorption ES and crush force efficiency η (b) of the considered specimens

    图  7  RFFT-90的有限元模型

    ν—Velocity

    Figure  7.  Finite element model of RFFT-90

    图  8  ET结构的实验和数值模拟的变形模式 (a) 和荷载-位移曲线 (b) 对比

    Figure  8.  Comparison of deformation process (a) and force-displacement curves (b) of ET obtained from experiment and simulation

    图  10  RFFT-90结构的实验和数值模拟的变形模式 (a) 和荷载-位移曲线 (b) 对比

    Figure  10.  Comparison of deformation process (a) and force-displacement curves (b) of RFFT-90 obtained from experiment and simulation

    图  9  RT结构的实验和数值模拟的变形模式 (a) 和荷载-位移曲线 (b) 对比

    Figure  9.  Comparison of deformation process (a) and force-displacement curves (b) of RT obtained from experiment and simulation

    图  11  ET、RT的荷载-位移曲线 (a) 和能量曲线 (b)

    FE—Frictional energy; IE—Internal energy

    Figure  11.  Comparison between ET and RT of force-displacement curves (a) and energy curves (b)

    图  12  ET和RFFT-90的荷载-位移曲线 (a) 和能量-位移曲线 (b) 对比

    Figure  12.  Comparison between ET and RFFT-90 for force-displacement curves (a) and energy-displacement curves (b)

    图  13  具有不同增强肋板角度和厚度的泡沫分区填充薄壁管变形模式(εN=0.6)

    Figure  13.  Deformation patterns of specimens with different rib angles and thicknesses at εN=0.6

    图  14  具有不同增强肋板角度和厚度的泡沫分区填充薄壁管的横向压缩荷载-位移曲线

    Figure  14.  Force-displacement curves for specimens with different rib angles and thicknesses

    图  15  具有不同肋板角度和厚度的RFFT-90峰值荷载Fp (a)、平均压溃荷载Fm (b)、比吸能ES (c) 及载荷一致性η (d)

    Figure  15.  Peak force Fp (a), mean crushing force Fm (b), specific energy absorption ES (c) and force consistency η (d) for RFFT-90 with different rib angles and thicknesses

    图  16  RFFT-90的量化效用U随设计参数的变化

    Figure  16.  Variation of quantitative utility U for RFFT-90 with design parameter

    表  1  肋板增强泡沫分区填充管各项相关指标对应的权重系数Wj

    Table  1.   Corresponding mass coefficients Wj for each relevant indicators of rib-reinforced foam partition-filled thin-walled tube

    Performance indicatorTotal comparison sets,
    N=4×(4−1)/2=6
    $ \displaystyle\sum\nolimits_{i = 1}^m {{N_{ij}}} $$ {W_{j} } $
    123456
    E223 77/24=0.291
    Fp223 77/24=0.291
    ES223 77/24=0.291
    η111 33/24=0.125
    Total, $ \displaystyle\sum\nolimits_{j = 1}^n {\displaystyle\sum\nolimits_{i = 1}^m {{N_{ij}}} } $241
    Notes: E—Energy absorption; ES—Specific mass energy absorption; Fp—Peak crushing load; η—Crushing load efficiency.
    下载: 导出CSV

    表  2  用复合比例评价法(COPRAS)得到的所有肋板增强泡沫分区填充管试样的加权归一化值

    Table  2.   Weighted normalized values for all specimens obtained by the complex proportional assessment (COPRAS) method

    θ/(°)t/mmEFpESη$ {S}_{+i} $$ {S}_{-i} $QiUiRank
    60 0.4 0.00485 0.00572 0.00668 0.00514 0.01666 0.00572 0.04418 0.70516 14
    0.8 0.00509 0.00620 0.00653 0.00499 0.01661 0.00620 0.04200 0.67036 17
    1.2 0.00515 0.00652 0.00616 0.00479 0.01610 0.00652 0.04026 0.64251 19
    1.6 0.00577 0.00685 0.00648 0.00511 0.01736 0.00685 0.04036 0.64418 18
    2.0 0.00578 0.00704 0.00612 0.00499 0.01689 0.00704 0.03926 0.62663 20
    90 0.4 0.01028 0.00801 0.01263 0.00779 0.03071 0.00801 0.05037 0.80386 10
    0.8 0.01003 0.00976 0.01152 0.00624 0.02779 0.00976 0.04392 0.70099 15
    1.2 0.01034 0.01018 0.01115 0.00616 0.02765 0.01018 0.04312 0.68822 16
    1.6 0.01224 0.01044 0.01247 0.00712 0.03183 0.01044 0.04691 0.74865 12
    2.0 0.01260 0.01133 0.01216 0.00675 0.03151 0.01133 0.04540 0.72459 13
    120 0.4 0.01384 0.01034 0.01564 0.00813 0.03760 0.01034 0.05284 0.84326 8
    0.8 0.01463 0.01090 0.01551 0.00815 0.03829 0.01090 0.05275 0.84186 9
    1.2 0.01654 0.01780 0.01649 0.00564 0.03866 0.01780 0.04751 0.75826 11
    1.6 0.02178 0.02296 0.02050 0.00576 0.04803 0.02296 0.05490 0.87613 6
    2.0 0.02545 0.02683 0.02302 0.00576 0.05423 0.02683 0.06010 0.95916 4
    150 0.4 0.01956 0.01357 0.02025 0.00875 0.04857 0.01357 0.06018 0.96042 3
    0.8 0.01972 0.01514 0.01933 0.00791 0.04696 0.01514 0.05737 0.91552 5
    1.2 0.02187 0.02701 0.02031 0.00492 0.04709 0.02701 0.05292 0.84455 7
    1.6 0.02641 0.02700 0.02340 0.00619 0.05560 0.02701 0.06183 0.98676 2
    2.0 0.02907 0.03741 0.02467 0.00472 0.05846 0.03741 0.06267 1.00026 1
    Notes: S+i—Beneficial attributes; Si—Non-beneficial attributes; Qi—Relative priorities; Ui—Quantitative utility.
    下载: 导出CSV
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  • 收稿日期:  2022-08-15
  • 修回日期:  2022-09-12
  • 录用日期:  2022-09-16
  • 网络出版日期:  2022-09-28
  • 刊出日期:  2023-08-15

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