ORCID Profile
0000-0002-8482-4263
Current Organisation
Henan Polytechnic University
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Publisher: Elsevier BV
Date: 2015
Publisher: Springer Science and Business Media LLC
Date: 08-12-2017
Publisher: Elsevier BV
Date: 04-2018
Publisher: Hindawi Limited
Date: 2018
DOI: 10.1155/2018/4751612
Abstract: To investigate the mechanical properties and energy evolution characteristics of sandstone depending on the water contents and confining pressure, the uniaxial and triaxial tests were conducted. The test results show that the strain energy was stored in the sandstone s les at the prepeak stage, and that is suddenly released when the failure occurred, and energy dissipation is sharply increased at the postpeak stage. The damage and energy dissipation characteristics of the s les are observed clearly under the stepwise loading and unloading process. The critical strain energy and energy dissipation show a clear exponential relationship. The critical elastic energy decreases linearly as the water content increases. As the confining pressure increases, the critical elastic energy of the s les transforms from linear to exponential. The concept of energy enhancement factor is proposed to characterize the strengthening effect induced by the confining pressure on the energy storage capacity of the rock s les. The energy evolution of the sandstone s les is more sensitive to the confining pressure than that of the water content.
Publisher: American Society of Civil Engineers (ASCE)
Date: 09-2014
Publisher: Oxford University Press (OUP)
Date: 20-06-2017
DOI: 10.1093/GJI/GGX270
Publisher: American Journal of Science (AJS)
Date: 2008
DOI: 10.2475/01.2008.02
No related grants have been discovered for Xu Chang.