Study on Dynamic Mechanical Properties of Limestone under Uniaxial Impact Compressive Loads
Joint Authors
Zou, Fei
Fang, Zheng-feng
Xia, Ming-yao
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-27
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The dynamic mechanical properties of limestone are studied with 5 types of impact pressure acting on limestone samples in axial direction in this paper.
The rubber shaper with a diameter of 5 mm and thickness of 2 mm is adopted.
Besides the conical punch of split pressure bar of Hopkinson with a diameter of 50 mm is also used.
The half-sinusoid pulse is obtained by using the pulse shaper method and special punch method; the constant strain rate deformation of the sample is realized.
Dynamic compressive properties and failure modes of limestone under different impact pressure are investigated.
In addition, energy dissipation is studied in the process of experiment.
The results show that the dynamic compressive strength of limestone has an exponent relation to strain rate.
The failure strain, degree of fragmentation, incident energy, and absorption energy increase, while the energy absorbency decreases with the increasing of strain rate.
However, the initial elastic modulus is not sensitive to the strain rate.
The research method and conclusions have reference value for the dynamic mechanical properties of other brittle materials.
American Psychological Association (APA)
Zou, Fei& Fang, Zheng-feng& Xia, Ming-yao. 2016. Study on Dynamic Mechanical Properties of Limestone under Uniaxial Impact Compressive Loads. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1112290
Modern Language Association (MLA)
Zou, Fei…[et al.]. Study on Dynamic Mechanical Properties of Limestone under Uniaxial Impact Compressive Loads. Mathematical Problems in Engineering No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1112290
American Medical Association (AMA)
Zou, Fei& Fang, Zheng-feng& Xia, Ming-yao. Study on Dynamic Mechanical Properties of Limestone under Uniaxial Impact Compressive Loads. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1112290
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112290