三维织物复合材料高速冲击性能和损伤机制研究

doi:10.19936/j.cnki.2096-8000.20240528.007

复合材料科学与工程 ›› 2024, Vol. 0 ›› Issue (5): 43-51.DOI: 10.19936/j.cnki.2096-8000.20240528.007

三维织物复合材料高速冲击性能和损伤机制研究

张根¹, 何泽侃^2*, 宣海军², 毛润丰², 贾文斌²

1.中国航发四川燃气涡轮研究院,成都610500;
2.浙江大学能源工程学院,杭州310027

收稿日期:2024-01-05 出版日期:2024-05-28 发布日期:2024-06-17
通讯作者: 何泽侃(1990—),男,博士,副研究员,研究方向为发动机结构冲击安全性,laokan@zju.edu.cn。
作者简介:张根(1986—),男,学士,高级工程师,研究方向为发动机结构强度。

Study on high speed impact performance and damage mechanism of 3D fabric structural composites

ZHANG Gen¹, HE Zekan^2*, XUAN Haijun², MAO Runfeng², JIA Wenbin²

1. AECC Sichuan Gas Turbine Establishment, Chengdu 610500, China;
2. College of Energy Engineering, Zhejiang University, Hangzhou 310027, China

Received:2024-01-05 Online:2024-05-28 Published:2024-06-17

摘要/Abstract

摘要： 三维织物复合材料在航空航天抗冲击结构领域有较好的应用潜力。本文采用钛合金圆柱弹和三维织物复合材料平板开展了30余次直线打靶试验,弹体速度范围为160~280 m/s,获得了弹回、嵌入、贯穿等不同的冲击试验结果和复合材料靶板损伤形式,根据试验结果分析了三维四向编织、三维五向编织、三维正交机织三种不同结构复合材料的冲击性能和损伤机制,并进行了对比差异分析。研究发现三种结构靶板受弹体冲击后损伤情况类似,撞击点局部出现纤维断裂拔出和基体开裂,三种结构均没有出现分层。三维四向编织结构损伤区域呈锐角十字形,损伤扩展沿编织方向;三维五向编织结构和三维正交机织结构损伤区域呈菱形,损伤扩展沿90°和0°方向。比较本文三种结构平板试验件,发现三维正交机织结构拥有最高的弹道极限,并且损伤区域面积最小。

关键词: 三维编织/机织, 复合材料, 打靶试验, 冲击性能, 损伤机制

Abstract: 3D fabric composites exhibit promising application potential in the field of impact-resistant aerospace structures. This study conducted over 30 ballistic impact tests using a titanium alloy cylindrical projectile and 3D fabric composite plates, with projectile velocities ranging from 160~280 m/s. Various impact test results such as rebound, embedding, and penetration were obtained, along with different damage forms of the composite target plate. Based on these test results, the impact properties and damage mechanisms of three different structural composites (3D 4 direction braided, 3D 5 direction braided, and 3D orthogonal woven) were analyzed. It is indicated that after being impacted by the projectile body, all three structures exhibit similar damage patterns characterized by local fiber fracture and matrix cracking at the point of impact without any lamination. The damage region of the 3D 4 direction braided structure is a sharp angle cross shape, while the damage spread along the braided direction. The damage region of the 3D 5 direction braided and 3D orthogonal woven structure are diamond-shaped, while the damage spread along the 90° and 0° direction. Comparing the three structures of specimens in this paper, it is found that the ballistic limit of 3D orthogonal woven structure is highest while its corresponding damage area is smallest.

Key words: 3D braided/woven, composites, ballistic impact test, impact properties, damage mechanism

中图分类号:

TB332

张根, 何泽侃, 宣海军, 毛润丰, 贾文斌. 三维织物复合材料高速冲击性能和损伤机制研究[J]. 复合材料科学与工程, 2024, 0(5): 43-51.

ZHANG Gen, HE Zekan, XUAN Haijun, MAO Runfeng, JIA Wenbin. Study on high speed impact performance and damage mechanism of 3D fabric structural composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(5): 43-51.

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三维织物复合材料高速冲击性能和损伤机制研究

Study on high speed impact performance and damage mechanism of 3D fabric structural composites

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