复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (3): 21-27.DOI: 10.19936/j.cnki.2096-8000.20260328.003

• 基础与力学性能研究 • 上一篇    下一篇

复合材料圆柱厚壁壳体阵列超声声场研究

李蔚然1, 李云鹏1, 李峰忠1, 罗忠兵1*, 屈平2, 焦慧锋2   

  1. 1.大连理工大学 无损检测研究所,大连 116024;
    2.中国船舶科学研究中心 深海载人装备全国重点实验室,无锡 214082
  • 收稿日期:2025-01-06 出版日期:2026-03-28 发布日期:2026-04-22
  • 通讯作者: 罗忠兵(1984—),男,博士,教授,博士生导师,研究方向为材料损伤及其无损检测与评价,zhbluo@dlut.edu.cn。
  • 作者简介:李蔚然(2001—),男,硕士研究生,研究方向为材料损伤及其无损检测与评价。
  • 基金资助:
    国家自然科学基金(52375527);辽宁省科学技术计划资助项目(2023-MS-102)

Research on array ultrasonic field of cylindrical thick-walled composite

LI Weiran1, LI Yunpeng1, LI Fengzhong1, LUO Zhongbing1*, QU Ping2, JIAO Huifeng2   

  1. 1. NDT&E Laboratory, Dalian University of Technology, Dalian 116024, China;
    2. State Key Laboratory of Deep-sea Manned Vehicles, China Ship Scientific Research Center, Wuxi 214082, China
  • Received:2025-01-06 Online:2026-03-28 Published:2026-04-22

摘要: 为阐明碳纤维增强树脂基复合材料(Carbon Fiber Reinforced Plastics,CFRP)圆柱厚壁壳体中相控阵超声检测(Phased Array Ultrasonic Testing,PAUT)声场特征,基于CIVA和COMSOL仿真软件开展了声学建模仿真研究。建立了考虑CFRP曲面、叠层、弹性各向异性的声学模型,分析了阵元孔径,预设聚焦深度,内、外R检测位置对PAUT声场分布特征的影响规律。研究发现:随着阵元孔径数N从3增加到12,焦柱范围扩大,当预设聚焦深度为27.5 mm时,焦柱宽度增大了12.9 mm,实际焦点深度从0.3 mm增加到13.2 mm;预设聚焦深度对焦柱宽度影响较小,对实际焦点深度的影响与阵元孔径有关,仅在阵元孔径较大时有一定变化。探头主动轴沿圆柱壳体轴向方向时,可有效避免内、外R检测位置差异对声场的影响。最后,制备3个深度分层缺陷,开展试验检测,验证典型模拟条件,两者结果一致性良好。所得结果有望为CFRP圆柱厚壁壳体的检测工艺制订提供参考和借鉴。

关键词: 碳纤维增强树脂基复合材料, 圆柱, 厚壁, 相控阵超声, 声场仿真

Abstract: To clarify the ultrasonic field characteristics of phased array ultrasonic testing (PAUT) in carbon fiber reinforced plastics (CFRP) cylindrical thick-walled shells, numerical simulation was carried out based on CIVA and COMSOL software. A comprehensive ultrasonic model was established, accounting for curved surfaces, layered structure, and elastic anisotropy. Subsequently, the influence of the array aperture, preset focal depth and inspection positions from inner or outer R side was studied. Results indicate that as the aperture increased from 3 to 12, the focal extent increased. Specifically, the width of focal range increased by 12.9 mm and the actual focal depth increased from 0.3 mm to 13.2 mm at the preset focal depth of 27.5 mm. The influence of the preset focal depth on the width of focal range remained relatively weak, while its impact on the actual focal depth depended on aperture, becoming pronounced only under substantial number of elements. Additionally, the adverse effect from inspection positions of inner or outer R could be mitigated with the primary axis of PAUT probe aligning with the axial direction of cylinder. Finally, three delaminations with different depths were prepared and PAUT experiments were conducted to validate the typical simulated condition, and a good consistency was observed. The results are anticipated to serve as a valuable reference and technical guidance for nondestructive testing of the CFRP cylindrical thick-walled shells.

Key words: carbon fiber reinforced plastics (CFRP), cylinder, thick-wall, phased array ultrasonic testing (PAUT), ultrasonic field simulation

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