Preparation of Elastic Porous Composite Material and Its Energy-absorption Characteristics

doi:10.3969/j.issn.1000-1093.2022.01.017

Abstract

Abstract: A new design idea of buffering material is put forward for the protection of fuze subjected to multiple high overloads in the process of warhead penetrating into multi-layer target plates. The porous media and elastic polymer are mixed to form a new composite structure in which the particles in porous media are wrapped together by spatial skeleton of elastic fibers. The scanning electron microscope is used to analyze the influence of the mass proportion of elastic polymer on the interior structure of composite films. The influence of the mass proportion of elastic polymer on inner porosity and recoverability were analyzed through the porosity test and multiple static pressure test, and the multiple impact test was conducted by Machete hammer to verify the energy absorption capacity of the material. The test results show that the designed porous material with elastic fiber reticular structure has good energy absorption characteristics and recoverability, and its performance is better than those of the pure porous material, overfilled film material, and polymer material during multiple impacts. It can be used to protect the fuze from damage during multiple impacts.

Key words: fuzeprotection, porousmaterial, elasticpolymer, multipleimpact

CLC Number:

TJ430.4

ZHANG Jinming， ZHANG He， DAI Keren， YU Da， YANG Benqiang. Preparation of Elastic Porous Composite Material and Its Energy-absorption Characteristics[J]. Acta Armamentarii, 2022, 43(1): 159-168.

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