ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this paper, the experimental study on the mechanical property of limestone undertriaxial compression with different hydrochemical environments is conducted and the non-linearcharacteristics of complete stress-strain process of limestone subjected to chemical corrosion, areanalyzed. The behaviors of deformation and strength of limestone eroded by different chemicalsolutions are obtained. It is known from the experimental and analytical results that differentchemical environments such as chemical composition, pH value etc can affect the mechanicalproperty of rock differently. How to establish a multifactor characteristic constitutive model whichcan reflect different chemical environments is the key problem to study the coupling corrosion effectof stress and chemistry of rock. The constitutive model of evolutionary neural network for rock underchemical corrosive environments is put forward, and the neural network constitutive relationshipunder stress-chemistry coupling corrosion is established by applying the theory of evolutionarycomputation and neural network. The neural network constitutive model established in this presentedpaper mainly takes into account the following three aspects: chemical environments of rockspecimens, content of main mineral compositions that are liable to being eroded by chemical solution,and mechanical environments. The results are in good agreement with the experimental data
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/54/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.340-341.1169.pdf
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