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

doi:10.3969/j.issn.1000-1093.2018.04.010

Abstract

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

CLC Number:

O385

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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第39卷
第4期2018 年4月兵工学报ACTA
ARMAMENTARIIVol.39No.4Apr.2018

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