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1. Modeling Window Glass Cracking Behavior Exposed to Radiation by Monte Carlo Method | |||
LI Liming,XIE Qiyuan,ZHANG Heping | |||
Security Science and Technology 20 January 2011 | |||
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Abstract:Thermal cracking of window glass has significant influence on the development of compartment fire. The radiative heat transfer is generally an important part for the analysis. In this paper, a program code based on Monte Carlo method has been developed to analyze the transient temperature distribution and time to first crack of window glass facing radiation. The spectral nature of glass has been accounted for. Comparisons between the predictions and experiment results from literature were made. Results show a good agreement, which suggests good applicability of this program. | |||
TO cite this article:LI Liming,XIE Qiyuan,ZHANG Heping. Modeling Window Glass Cracking Behavior Exposed to Radiation by Monte Carlo Method[OL].[20 January 2011] http://en.paper.edu.cn/en_releasepaper/content/4408106 |
2. Rheological Analysis of Coal and Gas Outburst and Its Noncontact Prediction Technology | |||
Wang Yungang,Wang Enyuan,He Xueqiu,Liu Zhentang,Zhang Hongjie | |||
Security Science and Technology 08 November 2007 | |||
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Abstract:According to the time effect of material failure, the rheological damage process of coal or rock, especially its creep characteristic, is analyzed. The method of controlling the catastrophic creep failure is proposed abstractly and the result that the Ⅱand Ⅲ stages of creep failure of coal or rock is vital to predict gas outburst with the EMR. Based on the transformation of energy and rheological explanation of outburst phenomena, the relationship between the rheological energy dissipation process of coal or rock containing gas and the energy transformation is analyzed, the results show that the EMR is produced in the rheological failure process of coal or rock containing gas before the gas outburst, and the EMR reflect the stress state of coal or rock containing gas. The effect of non-equilibrium gas on the EMR in the gas outburst process is debated, and the EMR can reflect the coal seam gas pressure. Therefore, the EMR reflect comprehensively the danger of coal outburst before working faces. Eventually, the EMR monitor gets satisfied results in application. | |||
TO cite this article:Wang Yungang,Wang Enyuan,He Xueqiu, et al. Rheological Analysis of Coal and Gas Outburst and Its Noncontact Prediction Technology[J]. |
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