Development of reliable modeling methodologies for fan blade out containment analysis - Part I: Experimental studies
Development of reliable modeling methodologies for fan blade out containment analysis - Part I: Experimental studies
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DOI：
10.1016/j.ijimpeng.2008.03.007
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发表时间：
2009-01-01
影响因子：
5.1
通讯作者：
Pereira, J. M.
中科院分区：
文献类型：
--
作者：
Naik, D.;Sankaran, S.;Pereira, J. M.
高强度机织物是用于需要高能量吸收的结构系统的理想候选材料。机织面料最广泛的应用之一是在推进发动机密封系统中。在这篇由两部分组成的论文的第一部分中，详细介绍了表征包括芳纶(注册商标)和齐隆(注册商标)在内的干织物性能的实验。讨论了表征1420丹尼尔芳纶(R)49 17 x 17、500丹尼尔赛隆(R)35 x 35和1500丹尼尔赛隆(R)17 x 17的行为的实验程序。主要目的是利用实验结果开发可用于显式有限元分析程序的本构模型。这些测试包括织物经纱和纬纱方向的张力测试、网格化剪切测试和织物各层之间的摩擦测试。这些试验的结果为本构模型的开发提供了基础--将应力与应变联系起来，表征失效和织物各层之间的相互作用。除了这些基本的材料测试外，还对用布料建造的系统进行了测试。在NASA-Glenn研究中心进行了安全壳在高速弹丸作用下的弹道试验。虽然这些测试提供了三种织物的能量吸收特性之间的比较，但它们也提供了基准结果来验证本文第二部分讨论的开发的有限元方法。(C)2008爱思唯尔有限公司。保留所有权利。
High strength woven fabrics are ideal candidate materials for use in structural systems where high energy absorption is required. One of the more widely used applications for woven fabrics is in propulsion engine containment systems. In this first part of a two-part paper, details of the experiments to characterize the behavior of dry fabrics including Kevlar (R) and Zylon (R) are presented. The experimental program to characterize the behavior of 1420 Denier Kevlar (R) 49 17 x 17, 500 Denier Zylon (R) AS 35 x 35, and 1500 Denier Zylon (R) 17 x 17 are discussed. The primary objective is to use the experimental results in the development of a constitutive model that can be used in an explicit finite element analysis program. These include Tension Tests in both the warp and fill directions of the fabric, Trellising Shear Tests and Friction Tests between fabric layers. The results from these tests provide the basis for development of the constitutive model - relating stresses to strains, characterizing failure and interaction between fabric layers. In addition to these basic material tests, tests on systems built with fabric wraps were also conducted. Ballistic tests of containment wraps subjected to a high velocity projectile were carried out at NASA-Glenn Research Center. While these tests provide a comparison between the energy absorbing characteristics of the three fabrics, they also provide benchmark results to validate the developed finite element methodology discussed in the second part of this paper. (C) 2008 Elsevier Ltd. All rights reserved.