破片群侵彻纤维增强层合板破坏机理及穿甲能力等效方法

doi:10.3969/j.issn.1000-1093.2018.04.010

兵工学报 ›› 2018, Vol. 39 ›› Issue (4): 707-716.doi: 10.3969/j.issn.1000-1093.2018.04.010

破片群侵彻纤维增强层合板破坏机理及穿甲能力等效方法

李典，侯海量，朱锡，陈长海，李茂

（海军工程大学舰船与海洋学院，湖北武汉 430033）

收稿日期:2017-09-05 修回日期:2017-09-05 上线日期:2018-05-30
通讯作者: 侯海量(1977—)，男，副教授，硕士生导师 E-mail:hou9611104@163.com
作者简介:李典(1990—)，男，博士研究生。E-mail:lidian916@163.com
基金资助:
国家自然科学基金项目(51679246、51409253)

Study of the Failure Mechanism of Fiber Reinforced Composite Laminates Subjected to Fragment Cluster Penetration and theEquivalent Method for Armor Piercing Ability of Fragment Cluster

LI Dian, HOU Hai-liang, ZHU Xi, CHEN Chang-hai, LI Mao

(College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, Hubei, China)

Received:2017-09-05 Revised:2017-09-05 Online:2018-05-30

摘要/Abstract

摘要： 为开展破片群侵彻下纤维增强层合板的防护设计，采用瞬态非线性有限元，进行了破片群侵彻下纤维增强层合板破坏机理的研究。阐明破片群侵彻下纤维增强层合板的破坏模式及过程，揭示破片群侵彻能力的增强效应，并分析破片数量、破片初速和破片间距因素对其影响规律，提出了破片群穿甲能力的等效方法。结果表明：与单破片侵彻相比，破片群的穿甲能力大大增强，其可与增大长度的单破片穿甲能力等效，为破片群侵彻下结构的穿甲防护设计提供了参考。

关键词: 纤维增强层合板, 破片群, 破坏机理, 穿甲能力等效方法

Abstract: To study the protection design of fiber reinforced composite laminates subjected to fragment cluster penetration, the failure mechanism of fiber reinforced laminates subjected to fragment cluster penetration is studied by using the transient nonlinear finite element, and the failure process and failure mode of fiber reinforced composite laminates under fragment cluster penetration are analyzed, the enhancement effect of fragment penetration ability is clarified, and the influence factors of fragment number, initial velocity and spacing are studied. Based on the above research, an equivalent method of armour piercing ability is proposed. The results show that the penetration ability of fragment cluster is stronger than that of single fragment, and can be equivalent with that of single fragment with increased length, which provides the reference for the armor protection design method of structure when penetrated by fragment cluster.Key

Key words: fiberreinforcedcompositelaminate, fragmentcluster, failuremechanism, equivalentmethodofarmorpiercingability

中图分类号:

O385

李典，侯海量，朱锡，陈长海，李茂. 破片群侵彻纤维增强层合板破坏机理及穿甲能力等效方法[J]. 兵工学报, 2018, 39(4): 707-716.

LI Dian, HOU Hai-liang, ZHU Xi, CHEN Chang-hai, LI Mao. Study of the Failure Mechanism of Fiber Reinforced Composite Laminates Subjected to Fragment Cluster Penetration and theEquivalent Method for Armor Piercing Ability of Fragment Cluster[J]. Acta Armamentarii, 2018, 39(4): 707-716.

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破片群侵彻纤维增强层合板破坏机理及穿甲能力等效方法

Study of the Failure Mechanism of Fiber Reinforced Composite Laminates Subjected to Fragment Cluster Penetration and theEquivalent Method for Armor Piercing Ability of Fragment Cluster

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