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:
Based on physical model of three-point-bending test, the AE characteristics ofthree-point-bending beams with different relative notch depth during the entire loading period wassimulated by using RFPA3D(realistic failure process analysis) code. Simulation results show that therelative notch depth affects the AE characteristics significantly. With increasing relative notch depth,the occurrence of AE events decreases remarkably. The stress distribution figures, elastic modulusphoto and AE relative energy time-space distribution figures as well as an analysis on the failureprocess are also provided. Based on the analysis of simulation results, it is concluded that theheterogeneity of rock and concrete has great influence on the crack propagation path, which leads thecrack propagation path becoming curvilinear
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.961.pdf
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