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Mechanical Behavior of Glass Panels Supported by Clamping Joints in Cable Net Facades
Ruo-qiang Feng,Ji-hong Ye,Yue Wu,Shi-zhao Shen 한국강구조학회 2012 International Journal of Steel Structures Vol.12 No.1
In glass panels supported by clamping joints in a cable net facade, the clamping joint restrains movement at the four corners of the glass panel. As a result, the mechanical behavior of the glass panels supported by clamping joints is very different than the behavior of glass panels supported by four hinged corners. Moreover, the deformation in cable net facade is large and nonuniform; thus, the glass panels in cable net facades bear the effects of warping distortion. In this study, a model test and theoretical analysis was conducted to study the mechanical behavior of glass panels supported by clamping joints in a cable net facade. To this end, a cable net facade was designed, and a proper experimental model was constructed. A static mechanical model test was conducted, where the glass stress at different positions in the cable net was measured. A numerical model of the cable net facade was developed, and the results of the experiment and the numerical analysis were compared. Furthermore,the numerical results provided a detailed description of the mechanical behavior of the glass panels in a cable net facade.
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Computer simulation of stereochemical structure of biodegradable poly(d,l-lactide-co-l-lactide)
Pei-Hua He,Yan Wu,Ruo-Feng Wu 한국물리학회 2007 Current Applied Physics Vol.7 No.s1
poly(D,L-lactide-co-L-lactide) (PDLLA). The Monte Carlo model is set up according to the reactivity probabilities of two kinds of isomerRR and SS during ring-opening chain propagation. The simulation results for Tetrads and Hexads intensities are in good agreement withexperimental results for13C NMR. Some other important parameters for the stereochemical structure of PDLLA are also obtained fromRun numbers. The inuence of reactivity ratiorand feed ratiop on the stereochemical structure is analyzed and discussed in detail. Thiscomputer simulation method has proved to be a convenient method for establishing structureproperties relationships of certain poly-mers whose stereoregularity can be adjusted, such as PDLLA.
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