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基于深度学习的准各向同性缎纹C/SiC拉伸-剪切损伤演化机理

陈鹏 王龙 张大旭 杜永龙 郭纬愉 陈超

陈鹏, 王龙, 张大旭, 等. 基于深度学习的准各向同性缎纹C/SiC拉伸-剪切损伤演化机理[J]. 复合材料学报, 2024, 42(0): 1-11.
引用本文: 陈鹏, 王龙, 张大旭, 等. 基于深度学习的准各向同性缎纹C/SiC拉伸-剪切损伤演化机理[J]. 复合材料学报, 2024, 42(0): 1-11.
CHEN Peng, WANG Long, ZHANG Daxu, et al. Deep learning based tensile-shear damage evolution mechanism of quasi-isotropic satin weave C/SiC composites[J]. Acta Materiae Compositae Sinica.
Citation: CHEN Peng, WANG Long, ZHANG Daxu, et al. Deep learning based tensile-shear damage evolution mechanism of quasi-isotropic satin weave C/SiC composites[J]. Acta Materiae Compositae Sinica.

基于深度学习的准各向同性缎纹C/SiC拉伸-剪切损伤演化机理

基金项目: 国家自然科学基金 (12072192;52202082)
详细信息
    作者简介:

    张大旭,博士,教授,博士生导师,研究方向为陶瓷基复合材料力学 E-mail: daxu.zhang@sjtu.edu.cn

    通讯作者:

    王龙,博士,高级工程师,研究方向为航天结构强度 E-mail: lwang@spacechina.com

  • 中图分类号: TB332

Deep learning based tensile-shear damage evolution mechanism of quasi-isotropic satin weave C/SiC composites

Funds: National Natural Science Foundation of China(12072192; 52202082)
  • 摘要: 利用4D X射线CT原位拉伸试验和深度学习技术,表征拉伸作用下准各向同性铺层缎纹C/SiC的损伤失效过程,揭示(0°/90°)铺层拉伸和(±45°)铺层剪切耦合作用的材料损伤演化机理。基于深度学习图像分割方法对载荷作用下基体裂纹、分层等损伤进行智能识别,提取损伤特征开展定量分析,结合断口形貌探究损伤与失效机理。研究发现:基体裂纹中±45°斜裂纹占主要部分,演化过程为初期裂纹不断扩展;横向裂纹虽然少于斜裂纹,但其长度和裂纹张开位移发展快;基体裂纹沿层间界面偏转诱发分层。(0°/90°)缎纹铺层组织点区90°纤维束出现横向开裂,浮长区伴随纤维束弯曲;组织点区0°纤维束发生断裂,浮长区伴随纤维束纵向劈裂。(±45°)缎纹铺层发生−45°(或+45°)纤维束斜向劈裂和相对错动,同层+45°(或−45°)纤维束则发生纤维束断裂,伴随纤维桥连弯曲。

     

  • 图  1  5枚缎纹组织结构: (a) (0°/90°)铺层; (b) (±45°)铺层

    Figure  1.  Structure of the 5 satin organization: (a) 0°/90° lay-up; (b) ±45° lay-up

    ROI—Region of interest

    图  2  X射线CT原位试验装置和试验件: (a) X射线 CT的内部结构; (b) 试验件尺寸

    Figure  2.  X-ray CT in-situ loading device and specimen: (a) Internal structure of X-ray CT; (b) Dimension of specimen

    图  3  缎纹C/SiC复合材料试验件力-位移曲线

    Figure  3.  Force-displacement curve of satin weave C/SiC composites

    图  4  深度学习流程

    Figure  4.  Deep learning process

    图  5  缎纹C/SiC复合材料试验件细观结构三维重构图:(a) 试验件感兴趣区域(ROI); (b) 叠加材料的孔隙三维渲染

    Figure  5.  3 D visualization of region of interest (ROI) of the satin weave C/SiC composite specimen (a) and spatial distribution of pore (b)

    图  6  缎纹C/SiC复合材料90°纤维束横向裂纹演化:(a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    Figure  6.  Transverse crack evolution in 90° tows of satin weave C/SiC composites: (a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    图  7  缎纹C/SiC复合材料0°纤维束纵向裂纹演化:(a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    Figure  7.  Longitudinal crack evolution in 0° tows of satin weave C/SiC composites: (a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    图  8  缎纹C/SiC复合材料±45°纤维束斜向裂纹演化:(a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    Figure  8.  Oblique crack evolution in ±45° tows of satin weave C/SiC composites: (a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    图  9  缎纹C/SiC复合材料横向、纵向、斜向裂纹演化三维可视化表征: (a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    Figure  9.  3 D visual characterization of damage evolution for transverse, longitudinal and oblique cracks of satin weave C/SiC composites: (a) 10 N; (b) 800 N; (c) 1507 N; (d) 41 N

    图  10  缎纹C/SiC复合材料裂纹体积分数随载荷变化曲线

    Figure  10.  Curve of variation of crack volume fraction with load of satin weave C/SiC composites

    图  11  缎纹C/SiC复合材料裂纹数量随载荷变化曲线

    Figure  11.  Curve of variation of crack number with load of satin weave C/SiC composites

    图  12  缎纹C/SiC复合材料裂纹萌生和扩展比例

    Figure  12.  Proportion of crack initiation and propagation of satin weave C/SiC composites

    图  13  缎纹C/SiC复合材料裂纹长度随载荷变化曲线

    Figure  13.  Curve of Variation of crack length with load of satin weave C/SiC composites

    图  14  缎纹C/SiC复合材料裂纹张开位移(COD)随载荷变化曲线

    Figure  14.  Curve of variation of crack opening distance (COD) with load of satin weave C/SiC composites

    图  15  缎纹C/SiC复合材料分层二维形貌和三维渲染

    Figure  15.  2 D morphology and 3 D rendering of delamination of satin weave C/SiC composites

    图  16  缎纹C/SiC复合材料分层沿厚度方向(Z轴)体积分布曲线

    Figure  16.  Spatial distribution of the delamination of satin weave C/SiC composites along Z axis

    图  17  缎纹C/SiC复合材料分层扩展路径: (a) 41 N; (b) 1507 N

    Figure  17.  Propagation path of delamination of satin weave C/SiC composites: (a) 41 N; (b) 1507 N

    图  18  缎纹C/SiC复合材料(0°/90°)和(±45°)铺层断裂面三维视图

    Figure  18.  3 D view of (0°/90°) and (±45°) lay-up fracture surface of satin weave C/SiC composites

    图  19  缎纹C/SiC复合材料(0°/90°)铺层断口: (a) 组织点区域; (b)~(d) 浮长区域

    Figure  19.  (0°/90°) lay-up fracture of satin weave C/SiC composites: (a) Tissue point region; (b)-(d) Floating length region

    图  20  缎纹C/SiC复合材料(±45°)铺层断口: (a) −45°纤维束断口; (b) 45°纤维束断口

    Figure  20.  (±45°) lay-up fracture of satin weave C/SiC composites: (a) −45° fibre tow fracture; (b) 45° fibre tow fracture

    图  21  缎纹C/SiC复合材料0°纤维束微观损伤: (a) 组织点区域 (b) 浮长区域

    Figure  21.  Microscopic damage of 0° fibre tow of satin weave C/SiC composites: (a) Tissue point region; (b) Floating length region

    图  22  缎纹C/SiC复合材料(0°/90°)铺层失效机理示意图: (a)~(c) 组织点区域;(d)~(f) 浮长区域

    Figure  22.  Schematic of failure mechanism for (0°/90°) lay-up of satin weave C/SiC composites: (a)-(c) Tissue point region; (d)-(f) Floating length region

    图  23  缎纹C/SiC复合材料(±45°)铺层失效机理示意图

    Figure  23.  Schematic of failure mechanism for (±45°) lay-up of satin weave C/SiC composites

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  • 收稿日期:  2023-12-04
  • 修回日期:  2024-01-28
  • 录用日期:  2024-02-21
  • 网络出版日期:  2024-03-14

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