Journal ArticleDOI
Determination of mechanical properties and full-field strain measurements of rock material under dynamic loads
Qianbing Zhang,Jian Zhao +1 more
TLDR
A detailed experimental procedure for the quantitative determination of mechanical properties and full-field strain measurement of rock material under dynamic loads was presented in this paper, where three kinds of testing methods, i.e., notched semi-circular bending, Brazilian disc, and uniaxial compression, were conducted using a split Hopkinson pressure bar (SHPB) system.About:
This article is published in International Journal of Rock Mechanics and Mining Sciences.The article was published on 2013-06-01. It has received 302 citations till now. The article focuses on the topics: Split-Hopkinson pressure bar & Digital image correlation.read more
Citations
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Journal ArticleDOI
A Review of Dynamic Experimental Techniques and Mechanical Behaviour of Rock Materials
TL;DR: A review of the development and the state of the art in dynamic testing techniques and dynamic mechanical behaviour of rock materials can be found in this article, where a detailed description of various dynamic mechanical properties (e.g., uniaxial and triaxial compressive strength, tensile strength, shear strength and fracture toughness) and corresponding fracture behaviour are discussed.
Journal ArticleDOI
Dynamic rock tests using split Hopkinson (Kolsky) bar system – A review
Kaiwen Xia,Wei Yao +1 more
TL;DR: In this paper, a detailed review of the detailed procedures and principles of techniques for dynamic rock tests using split Hopkinson bars is presented, followed by the key loading techniques that are useful for dynamic tests with SHPB (i.e., pulse shaping, momentum-trap and multi-axial loading techniques).
Journal ArticleDOI
Effect of loading rate on fracture toughness and failure micromechanisms in marble
Qianbing Zhang,Jian Zhao +1 more
TL;DR: In this article, the authors used a micromechanical model to examine the intergranular and transgranular fracture properties of a marble and found that fracture toughness and surface roughness were dependent on loading rate.
Journal ArticleDOI
Experimental investigation of thermal effects on dynamic behavior of granite
TL;DR: In this article, the authors evaluate the thermal effects on the geophysical properties of granite and show that the dynamic strength decreases linearly as temperature increases but increases as the impact pressure increases.
Journal ArticleDOI
Dynamic Response and Energy Evolution of Sandstone Under Coupled Static–Dynamic Compression: Insights from Experimental Study into Deep Rock Engineering Applications
TL;DR: In this article, the impact tests were conducted on sandstone subjected to axial static pre-stresses varying from 0 to 75 MPa by a modified split Hopkinson pressure bar.
References
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Journal ArticleDOI
An Investigation of the Mechanical Properties of Materials at very High Rates of Loading
TL;DR: In this article, a method of determining the stress-strain relation of materials when stresses are applied for times of the order of 20 microseconds is described, using a modification of the Hopkinson pressure bar and detonators were used to produce large transient stresses.
Book
Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts,Theory and Applications
TL;DR: In this paper, a comprehensive overview of image correlation for shape, motion and deformation measurements is provided. But, the authors do not discuss the effect of out-of-plane motion on 2D measurements.
Journal ArticleDOI
Digital Imaging Techniques In Experimental Stress Analysis
W. H. Peters,W. F. Ranson +1 more
TL;DR: In this paper, the surface displacement components in laser speckle metrology were measured using a digital image scanner interfaced to a computer. Butt et al. used a boundary integral equation method to calculate surface traction in the contour.
Journal ArticleDOI
Digital image correlation using Newton-Raphson method of partial differential correction
TL;DR: In this paper, the authors developed and limited experimental verification of a method which can determine displacements and gradients using the Newton-Raphson method of partial corrections, which was shown to be accurate in determining displacement and certain gradients, while using significantly less CPU time than the current coarse-fine search method.
Posted Content
Digital Image Correlation: From Displacement Measurement to Identification of Elastic Properties - A Review
François Hild,Stéphane Roux +1 more
TL;DR: In this article, a general presentation of the extraction of displacement fields from the knowledge of pictures taken at different instants of an experiment is given, and different strategies can be followed to achieve a sub-pixel uncertainty.