Rotational Degrees Of Freedom In Modelling Of Materials With Intrinsic Length Scale

在许多应用中，从纳米技术到建筑和采矿，与材料成分相比，建模对象不够大，不足以满足经典连续介质建模的要求，但又包含太多元素，无法进行舒适的粒子型计算机模拟。如果每种内在物质结构都有合理的构造方法，泛化的连续体将提供一个可行的选择。该项目旨在开发必要的均化程序，并建立颗粒和层状材料(如多壁纳米管、富勒烯、颗粒复合材料和层状岩体)中变形、波传播和冲击破裂的广义(Cosserat)连续模型。

In many applications, from nanotechnology to construction and mining, the modelled objects are not large enough as compared to the material constituents for classical continuum modelling to be adequate, but yet encompass too many elements for comfortable particle-type computer simulation. Generalised continua would offer a viable option if a rational method of their construction for each intrinsic material structure were at hand. The project aims at developing the necessary homogenisation procedure and constructing generalised (Cosserat) continuum models of deformation, wave propagation and impact fracture in particulate and layered materials such as multi-wall nanotubes, fullerenes, particulate composites and layered rock masses.