Microstructurally Informed Modelling of Metal Fragmentation

受高变形率影响的金属部件可能会因碎裂而灾难性地失效。了解和预测这种碎裂过程对于保护结构和人员免受其可能造成的损害至关重要。这个项目将涉及开发更好的金属碎裂模型，其中包括在微观尺度上考虑结构，将其与宏观尺度上的碎片形成联系起来。这将建立在曼彻斯特使用锦缎框架进行的晶体塑性建模工作的基础上。这些模型将通过使用电子显微镜对相关合金的微观结构进行高级表征来提供信息。验证将通过与项目合作伙伴的试验进行，包括全面的现场测试。这项工作得到了国防部执行机构DSTL的支持，该机构的目标是最大限度地发挥科学技术对英国国防和安全的影响。该项目将涉及与DSTL专家科学家的合作。

Metal components subject to high rates of deformation can fail catastrophically by fragmentation. Understanding and predicting this fragmentation process is critical to protecting structures and people from the damage it can cause. This has applications including defence and space.This project will involve developing better models for fragmentation of metals that include a consideration of the structure at the micro-scale, linking this to fragment formation at the macro-scale. This will build on work in crystal plasticity modelling at Manchester using the DAMASK framework. The models will be informed by advanced characterization of the microstructures of relevant alloys using electron microscopy. Validation will be performed through trials with the project partner, including full-scale field tests.The work is supported by DSTL, an executive agency of the Ministry of Defence whose goal is to maximise the impact of science and technology for the defence and security of the UK. The project will involve working in collaboration with expert DSTL scientists.