损伤力学理论应用于土木工程研究进展

 过去30年间,中国的土木工程建设取得了长足的发展,支撑了国家的社会经济持续进步。在经济新常态的大背景下,土木工程行业的发展也表现出新的特点,在强调生产要素的同时也开始重视基础理论和核心技术;土木结构的非线性分析问题,作为土木结构领域的核心科学和技术问题,再次得到行业的重视;结构非线性分析的核心环节,材料本构关系的理论建模和理论实现,得到了学术界和工程界的关注。以基于损伤力学理论的混凝土类伪脆性材料的本构关系模型为切入点,分析了损伤力学理论的发展,展示了损伤力学模型的验证过程,基于若干典型案例阐释了损伤力学理论在土木工程领域的应用,以及损伤力学理论在生物力学方面的扩展应用。

Damage mechanics as applied to civil engineering

In the past 30 years, significant progress has been made in the field of civil engineering and infrastructure construction in China, greatly supporting the continuous development of the economy. While China's economy steps into the "new normal" phase, the development of civil engineering shows some new features and the developments of fundamental theories and advanced technologies attract more and more attention. Nonlinear analysis of structures, one of the essential problems in civil engineering, has been concerned by more and more researchers and engineers. For constitutive modeling of engineering materials, the damage model plays an important role where structural damage and failure are considered. In this paper, the historical development of damage model for quasi-brittle materials is briefly reviewed. Then V&V of the damage model is described and its applications to civil engineering are presented by case studies. Finally, an application of the theory to bio-engineering is shown with a case. In the near future, the transformation and upgrading of traditional civil engineering will be promoted by the coupling between its fundamental research and engineering application.