Download Advances in discontinuous numerical methods and applications by Jian Zhao PDF

By Jian Zhao

ISBN-10: 0203114426

ISBN-13: 9780203114421

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2011). The result is not bad in qualitatively as the case of Bayon temple, however, the absolute value of the settlement is smaller than the four node iso-parametric NMM case in qualitatively. More wide analytical region should be required both Bayon temple and Pharaoh Khufu’s pyramid models. H. Shi (2001). The authors introduced the contact damper between blocks based on the Shi’s original analysis as same as the 2D-DDA. , 2011). The 3D-DDA deals with the exact 3-D topographical data of the slopes (swamp with flexure in this study) as well as the 3-D shape of falling rocks, which may be disregarded in the 2-D simulations.

The latter’s derivation from continuum mechanics allowed it to be consistently formulated as a numerical approximation of well-established differential equations. The existing continuum theories provided, in addition, a set of closed form solutions for validation of the numerical results, and for benchmarking the various codes. DEM followed a very different path, from the outset attempting to address problems that the continuum codes could not handle adequately, and for which no accepted theory existed.

Figure 3 show relations of the velocity ratio and the penalty in the parameters of the falling rock area/slope area and the velocity of falling rock. 0 in the before and the after contact, the correct results are given under the conditions of the time interval under 10−5 second and the falling bloc area/slope area under 1:50 are recommended in this research. The meanings of this results shows the small condition numbers of the stiffness matrix as Kmax/Kmin is given more good solutions than the big condition numbers.

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