Unified nondeterministic dynamic safety assessment of softening structures

本项目旨在开发一种高性能的软化结构动态安全评估工具。对表现出软化的结构进行评估，无论是在本构水平还是结构水平，对于设计和修复目的都是必不可少的，特别是当需要考虑系统参数中不可避免的不确定性时。该项目旨在开发一种先进的统一框架，可以为这些目的建模随机和非随机过程。一个先进的混合有限元模型支撑了这个框架，公式和求解算法都是基于数学规划的形式。所开发的计算工具能够对结构进行纯随机、纯非随机、混合不确定分析和动力可靠度评估。

This project aims to develop a high-performance tool for the dynamic safety assessment of softening structures. The assessment of structures that exhibit softening, either at constitutive level or structural level, is essential for design and rehabilitation purposes, especially when the inevitable uncertainties in the system parameters need to be accounted for. This project aims to develop an advanced and unified framework that can model both stochastic and nonstochastic processes for these purposes. An advanced mixed finite element model underpins this framework, and both formulation and solution algorithms are based on mathematical programming formalism. The developed computational tool would be able to perform pure stochastic, pure nonstochastic, hybrid uncertain analyses and dynamic reliability assessment of structures.