在冲击负荷前后对人工损坏的碳/玻璃/环氧复合材料进行图像分析
Burak Öztaş1, Yasemin Korkmaz1, Halil İbrahim Çelik2
1Department of Textile Engineering, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey.
Heliyon
|February 26, 2024
概括
超声波测试可以有效地检测复合材料的内部损伤. 该方法准确量化玻璃纤维增强复合材料 (GFRP) 的损伤,并确定碳纤维增强复合材料 (CFRP) 撞击后的结构完整性问题.
科学领域:
- 材料科学 材料科学 材料科学
- 非破坏性测试 不破坏性测试
- 复合材料工程 复合材料工程
背景情况:
- 复合材料越来越多地用于航空航天等关键行业.
- 检测内部,通常是看不见的损坏,对于安全和材料完整性至关重要.
- 非破坏性测试 (NDT) 方法对于评估复合材料的健康状况至关重要.
研究的目的:
- 评估超声波测试对检测玻璃和碳纤维增强环氧复合材料的冲击损伤的有效性.
- 量化复合材料带有和没有人造缺陷的损坏程度.
- 开发和应用图像处理算法用于损害分析.
主要方法:
- 人工损伤被引入了玻璃和碳织布增强环氧复合材料.
- 对准备好的复合样本进行了冲击测试.
- 超声波扫描用于检测和分析撞击前后的损坏.
- 图像处理算法被开发并应用于定量损害评估.
主要成果:
- 玻璃纤维增强复合材料 (GFRP) 在人工损坏的样本中 (G/AL) 与未损坏的样本 (G/UD) 相比,损坏面积增加了4-5倍.
- 针对GFRP的特定损坏面积值为72.88 mm2 (G/UD),143.74 mm2 (G/AC) 和315.93 mm2 (G/AL).
- 有人工损伤的碳纤维增强复合材料 (CFRP) (C/AL,C/AC) 在冲击时被穿孔,与未受损的样品 (C/UD) 不一样.
结论:
- 超声波测试方法与图像处理相结合,成功地检测和分析了复合材料中几乎看不见的损伤.
- 开发的图像处理算法为量化损坏程度提供了可靠的工具.
- 这种方法对于在苛刻的应用中确保复合结构的安全性和可靠性至关重要.
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