[原创类]岩石动力学综述论文: Dynamic mechanical behaviour of rocks [复制链接]

上一主题下一主题查看指定楼层

离线qbzhang666

教授级高工

发帖: 413

土币: 5280

威望: 1829

原创币: 0

只看楼主倒序阅读使用道具楼主发表于: 2013-07-23

A review of dynamic experimental techniques and mechanical behaviour of rock materials

'Rock Mechanics and Rock Engineering'http://www.springer.com/earth+sciences+and+geography/geophysics/journal/603

Q.B. Zhang and J. Zhao

The purpose of this review is to discuss the development and the state-of-the-art in dynamic testing techniques and dynamic mechanical behaviour of rock materials. The review begins by briefly introducing the history of rock dynamics and explaining the significance of studying these issues. Loading techniques commonly used for both intermediate and high strain rate tests and measurement techniques for dynamic stress and deformation are critically assessed in Sections 2 and 3. In Section 4, methods of dynamic testing and estimating for obtaining stress-strain curves at high strain rate are summarized, followed by an in-depth description of various dynamic mechanical properties (e.g., uniaxial and triaxial compressive strength, tensile strength, shear strength and fracture toughness) and corresponding fracture behaviour. Some influencing rock structures (i.e., microstructure, size and shape) and testing conditions (i.e., confining pressure, temperature, and water saturation) are considered, ending with some popular semi-empirical rate dependent equations for the enhancement of dynamic mechanical properties. Section 5 discusses physical mechanisms of strain rate effect. Section 6 describes phenomenological and mechanically-based rate dependent constitutive models established from the knowledge of the stress-strain behaviour and physical mechanisms. Section 7 presents dynamic fracture criteria for quasi-brittle materials. Finally, a brief summary and some aspects of prospective research are presented.

分享到 淘江湖新浪 QQ微博 QQ空间开心人人豆瓣网易微博百度鲜果白社会飞信

发帖回复

返回列表


	https://bbs.yantuchina.com 访问内容超出本站范围，不能确定是否安全


	关闭选中1篇全选

帖子

[原创类]岩石动力学综述论文: Dynamic mechanical behaviour of rocks [复制链接]