Abstract

In this work, a numerical model for aramid composites is experimentally validated in terms of permanent deformation, energy absorption and damage mechanisms for ballistic applications. Novel experimental and numerical results of non-perforating ballistic impacts with blunt projectiles are presented. The resistance forces and absorption energy by the specimen are measured for different impact velocities. A postmortem analysis of the failure mechanisms is performed using computed tomography and a profilometer device. The numerical model is used to analyze the influence of impactor mass and impact velocity below the ballistic limit.

中文翻译：

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芳纶复合材料在钝弹冲击过程中的能量吸收分析

摘要

在这项工作中，芳纶复合材料的数值模型在弹道应用的永久变形、能量吸收和损伤机制方面得到了实验验证。提出了钝头弹丸非穿孔弹道冲击的新实验和数值结果。针对不同的冲击速度测量样品的阻力和吸收能量。使用计算机断层扫描和轮廓仪设备对故障机制进行事后分析。数值模型用于分析冲击器质量和冲击速度低于弹道极限的影响。