NDLI: A Review of Dynamic Experimental Techniques and Mechanical Behaviour of Rock Materials

Content Provider	Springer Nature Link
Author	Zhang, Q. B. Zhao, J.
Copyright Year	2013
Abstract	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 Sects. 2 and 3. In Sect. 4, methods of dynamic testing and estimation to obtain 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 structural features (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 effects. 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.
Starting Page	1411
Ending Page	1478
Page Count	68
File Format	PDF
ISSN	07232632
Journal	Rock Mechanics and Rock Engineering
Volume Number	47
Issue Number	4
e-ISSN	1434453X
Language	English
Publisher	Springer Vienna
Publisher Date	2013-09-13
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rock material Strain rate Experimental techniques Mechanical behaviour Dynamic loading Rock dynamics Dynamic fracture Geophysics/Geodesy Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology Civil and Structural Engineering

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