科技创新与应用2026，Vol.16Issue(10)：1-8,8.DOI:10.19981/j.CN23-1581/G3.2026.10.001
VARI成型纤维增强复合材料的孔隙率超声评价研究
周志伟 1冀冰 1庄亚 1王伊飞 1王文龙1
作者信息
- 1. 洛阳船舶材料研究所,河南 洛阳 471023
- 折叠
摘要
Abstract
With the development of Marine composite materials,its quality control is becoming more and more important.Aiming at the problem of pore defects in vacuum assisted molding of fiber reinforced composites,ultrasonic nondestructive testing(NDT)technology was used to evaluate and study the problem.Based on sound field simulation,this paper explores the influence of pore defects with different shapes,numbers and distribution ranges on ultrasonic wave propagation laws.Optical microscopy and micro-focus industrial CT were used to characterize the defect samples to explore the characteristics of pore defects under the vacuum-assisted forming process.Using porosity gradient specimens,combined with ultrasonic non-destructive testing technology,a relationship model between sound velocity and center frequency of ultrasonic echo signal and material porosity is established using sound velocity method and spectrum method.关键词
纤维增强复合材料/真空辅助成型/孔隙率/超声检测/声场仿真Key words
fiber reinforced composite/vacuum-assisted forming/porosity/ultrasonic testing/sound field simulation分类
通用工业技术引用本文复制引用
周志伟,冀冰,庄亚,王伊飞,王文龙..VARI成型纤维增强复合材料的孔隙率超声评价研究[J].科技创新与应用,2026,16(10):1-8,8.
