不同铺层复合材料夹芯结构低速冲击与冲击后剩余强度研究

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (11): 102-110.

不同铺层复合材料夹芯结构低速冲击与冲击后剩余强度研究

孙子恒¹, 王继辉^1*, 倪爱清², 陈宏达¹

1.武汉理工大学材料科学与工程学院,武汉430070;
2.武汉理工大学复合新技术国家重点实验室,武汉430070

收稿日期:2019-12-24 出版日期:2020-11-28 发布日期:2020-11-28
通讯作者: 王继辉(1962-),博士,教授,主要从事聚合物基复合材料结构方面的研究,jhwang@whut.edu.cn。
作者简介:孙子恒(1996-),男,硕士,主要从事聚合物基复合材料方面的研究。本文作者还有陈俊磊¹,詹明樊¹。

STUDY ON THE LOW-SPEED IMPACT PERFORMANCE AND RESIDUAL STRENGTH AFTER IMPACT OF COMPOSITE SANDWICH STRUCTURE WITH DIFFERENT LAYUP

SUN Zi-heng¹, WANG Ji-hui^1*, NI Ai-qing², CHEN Hong-da¹

1. School of Materials Science and Engineering, Wuhan University of Technology,Wuhan 430070, China;
2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070, China

Received:2019-12-24 Online:2020-11-28 Published:2020-11-28

摘要/Abstract

摘要： 本文使用碳纤维平纹编织预浸料和单向预浸料以及巴沙木,制备了三种不同铺层结构的碳纤维夹芯板。选用5 J、15 J、25 J、35 J以及45 J的冲击能量,对这三种复合材料夹芯结构进行低速冲击及冲击后压缩试验,来研究不同面板铺层类型对夹芯板低速冲击性能以及冲击后剩余压缩强度的影响。结果表明,不同铺层结构的碳纤维夹芯板在受到低速冲击和冲击后压缩测试时的损伤失效形式不同,三种夹芯板的低速冲击损伤面积、凹坑深度、分层面积、冲击响应曲线以及冲击后压缩强度下降比例均有较大的差异。在这三种铺层方式中,碳纤维单向预浸料准各向同性铺层的试样表现出较高的抗冲击载荷能力。

关键词: 碳纤维, 夹芯板, 冲击损伤, 剩余压缩强度, 复合材料

Abstract: In this paper, three kinds of carbon fiber sandwich structures with different layup face sheets were prepared by using carbon fiber plain weave prepreg, unidirectional prepreg and Balsa. The low-speed impact with impact energy of 5 J, 15 J, 25 J, 35 J, 45 J and post-impact compression test of these three composite sandwich structures were carried out to study the effect of different laminate types on the low-speed impact properties and residual compressive strength of sandwich panels. The results indicate that stacking parameters can prominently influence the damage failure modes of composites sandwich structure when subjected to low-speed impact and post-impact compression. The low-speed impact damage area, pit depth, damage area, impact response curve and the compressive strength reduction ratio after impact of the three sandwich panels were remarkably different. Among the three laying methods, the specimens of unidirectional carbon fiber prepreg with quasi isotropic layer exhibit high impact load resistance.

Key words: carbon fiber, sandwich, impact damage, residual compressive strength, composites

中图分类号:

TB332

孙子恒, 王继辉, 倪爱清, 陈宏达. 不同铺层复合材料夹芯结构低速冲击与冲击后剩余强度研究[J]. 复合材料科学与工程, 2020, 0(11): 102-110.

SUN Zi-heng, WANG Ji-hui, NI Ai-qing, CHEN Hong-da. STUDY ON THE LOW-SPEED IMPACT PERFORMANCE AND RESIDUAL STRENGTH AFTER IMPACT OF COMPOSITE SANDWICH STRUCTURE WITH DIFFERENT LAYUP[J]. Composites Science and Engineering, 2020, 0(11): 102-110.

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