Blast Damage and Fragmentation Prediction for Occupants and Structure Protection

保护基础设施免受恐怖袭击或意外爆炸的爆炸载荷是一项挑战。研究人员一直致力于建立数值模型，但由于难以模拟非线性和高应变率损伤过程，进展缓慢。大多数爆炸效应评价是基于爆炸试验的经验关系。由于测试模型的结构特性的变化，这些已被证明不一定产生准确的预测。因此，可靠的数值模型非常重要。这将大大节省爆炸试验的费用，并能更好地预测爆炸对结构和人员保护的影响。它将应用于民用、采矿和国防工程。

Protecting infrastructures against blast loads from terrorist bombing or accidental explosion is a challenge. Researchers have been working on developing a numerical model, but the progress is slow owing to difficulties in modelling nonlinear and high strain rate damage process. Most blast effect assessment is based on empirical relations from blast tests. These have been demonstrated not necessarily yielding accurate prediction owing to variations of structural properties from the test model. A reliable numerical model is therefore important. It will result in big savings from blast tests, and better prediction of blast effects for structure and occupant protection. It will have applications in civil, mining and defence engineering.