Predictive Assessment of Material Failure

材料失效的预测评估

• 批准号: 2904642
• 金额: --
• 依托单位: CRANFIELD UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2904642
• 关键词: Predictive; Assessment; Material; Failure

The destructive effects of current and emerging exploding threats are routinely reported from current conflicts around the world. Protective structures and platforms, commonly consisting of multiple layers materials such as High Hard Steel (HHS), are used to reduce the catastrophic effect of these threats. Although full scale blast trials have been conducted by Dstl to assess the protection level provided by a range of armour technologies against blast loading, the fundamental cause of brittle failure during overmatch is not well understood. An increased understanding of the behaviour of HHS under extreme dynamic loading is essential to support advice provided by Dstl Armour SMEs, particularly with the global uncertainty associated with current conflicts. Understanding the fundamental science of the catastrophic failure of high hardness, brittle, materials can benefit multiple research fields. Whilst a typical example is the failure of a protective panel in a vehicle, this could describe all metallic materials that may experience a blast failure, such as pressurised pipes and other key parts of the UKs critical national infrastructure (energy). This will have exploitation far beyond the initial Defence and Security domain, such as gas infrastructure, particularly given the current consideration of transitioning to hydrogen gas as a cleaner energy source.

当前的冲突常规报道了当前和新兴爆炸威胁的破坏性影响。保护结构和平台通常由高硬钢（HHS）等多层材料组成，用于减少这些威胁的灾难性影响。尽管DSTL已经进行了全尺度爆炸试验，以评估一系列防止爆炸载荷提供的防护水平，但在过度锻炼过程中易碎失败的基本原因尚不清楚。对在极端动态载荷下HHS行为的越来越多，对于支持DSTL Armor SME提供的建议至关重要，尤其是与当前冲突相关的全球不确定性。了解高硬度，脆性，材料的灾难性失败的基本科学可以使多个研究领域受益。尽管一个典型的例子是车辆中的防护板故障，但这可以描述所有可能遇到爆炸故障的金属材料，例如加压管道和UKS关键国家基础设施（Energy）的其他关键部分。这将具有远远超出初始防御和安全域（例如气体基础设施）的剥削，特别是考虑到当前考虑过渡到氢气作为清洁能源的考虑。