X射线CT研究混凝土的目的是通过CT扫描获得的CT图像，分析混凝土在不同荷载作用下细观裂纹的演化过程，解释混凝土宏观强度和变形特性。
The purpose of studying concrete using X-ray CT is to analyze concrete meso-crack evolution process and explain concrete macroscopic strength and strain character based on concrete CT images.
本文从细观力学角度研究了高脆性材料亚临界裂纹扩展机制。
The subcritical crack growth mechanism in brittle materials is studied from the viewpoint of mesomechanics.
文中以裂纹连续扩展的断裂力学方法，研究单向纤维复合材料的细观损伤演化与韧度计算。
The methodology of fracture mechanics based on continuous crack growth was applied to the investigation of the microscopic damage evolution and toughness calculation for fiber composites.
应用推荐