Non-deterministic fracture analysis of structures by extending the scaled boundary finite-element method

澳大利亚很大一部分水坝、桥梁和建筑基础设施正在老化，混凝土逐渐退化和钢材腐蚀导致材料性能出现裂缝和退化。这项研究解决了实际和具有挑战性的问题，在其属性和裂纹尺寸的不确定性的裂纹结构。作为该项目的成果开发的先进数值工具将使工程师能够评估结构在开裂、材料特性变化、修复和加载等各种情况下的可靠性。所获得的知识将使我们在安全和具有成本效益的管理我们老化的基础设施方面作出更合理的决定。

A very large part of Australia's dam, bridge and building infrastructure is ageing and experiencing cracking and deteriorations in material properties caused by progressive deterioration of concrete and corrosion of steel. This research addresses the practical and challenging problems of cracked structures with uncertainties in their properties and crack sizes. The advanced numerical tool developed as an outcome of this project will enable engineers to evaluate the reliability of structures under various scenarios of cracking, variation in material properties, rehabilitation and loading. The acquired knowledge will lead to more rational decisions in safe and cost-effective management of our ageing infrastructure.