Novel initiation threshold experiments for composite energetic materials

复合含能材料的新型引发阈值实验

• 批准号: 2437568
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2437568
• 关键词: Novel; initiation; threshold; experiments; composite

In the project samples of composite energetic materials will be damaged with the intent of introducing homogenously distributed microstructural damage. The project will explore whether the greatest degree of damage homogeneity is achieved by using high or low deformation rates in combination with high or low ambient temperatures; and in doing so will assess the applicability of Time Temperature Superposition concepts to damage evolution. In addition to this experiments will also be conducted to assess whether mechanical damage is first discernible as a degradation in mechanical properties, or as a reduction in reaction threshold parameters; an important consideration from the perspective of non-destructive condition monitoring.

在工程中对复合含能材料试样进行损伤处理，旨在引入均匀分布的微结构损伤。该项目将探索在高或低的环境温度下使用高或低的变形率是否能达到最大程度的损伤均匀性；并在此过程中评估时间温度叠加概念对损伤演化的适用性。除此之外，还将进行实验，以评估机械损伤是否首先可识别为机械性能的退化，还是作为反应阈值参数的降低；从无损状态监测的角度考虑的一个重要因素。