• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >An Examination of the Low Strain Rate Sensitivity of Additively Manufactured Polymer Composite and Metallic Honeycomb Structures
【2h】

An Examination of the Low Strain Rate Sensitivity of Additively Manufactured Polymer Composite and Metallic Honeycomb Structures

机译：增材制造的聚合物复合材料和金属蜂窝结构的低应变速率敏感性研究

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The characterization of additively manufactured cellular materials, such as honeycombs and lattices, is crucial to enabling their implementation in functional parts. One of the characterization methods commonly employed is mechanical testing under compression. This work focuses specifically on the dependence of these tests to the applied strain rate during the test over low strain rate regimes (considered here as 10 to 10 s ). The paper is limited to the study of strain the rate dependence of hexagonal honeycomb structures manufactured with four different additive manufacturing processes: one polymer (fused deposition modeling, or material extrusion with ABS), one composite (nylon and continuous carbon fiber extrusion) and two metallic (laser powder bed fusion of Inconel 718 and electron beam melting of Ti6Al4V). The strain rate sensitivities of the effective elastic moduli, and the peak loads for all four processes were compared. Results show significant sensitivity to strain rate in the polymer and composite process for both these metrics, and mild sensitivity for the metallic honeycombs for the peak load. This study has implications for the characterization and modeling of all mechanical cellular materials and makes the case for evaluation and if appropriate, inclusion, of strain rate effects in all cellular material modeling.
机译：增材制造的蜂窝材料（例如蜂窝和格子）的特性对于使其能够在功能部件中实现至关重要。常用的表征方法之一是压缩下的机械测试。这项工作专门针对这些测试对低应变率方案（在此视为10到10 s）下施加的应变率的依赖性。本文仅限于通过四种不同的增材制造工艺制造的六角形蜂窝结构的应变率相关性的研究：一种聚合物（熔融沉积建模或使用ABS进行材料挤压），一种复合材料（尼龙和连续碳纤维挤压）和两种金属（Inconel 718的激光粉末床熔合和Ti6Al4V的电子束熔化）。比较了有效弹性模量的应变率敏感性和所有四个过程的峰值载荷。结果表明，对于这两个指标，聚合物和复合材料工艺均对应变速率具有显着的敏感性，而对金属蜂窝而言，对于峰值载荷则具有中等敏感性。这项研究对所有机械多孔材料的表征和建模具有重要意义，并为所有蜂窝材料建模中的应变率效应进行评估，并酌情包括在内。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号