examine 2d manual
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examine 2d manualThe program is interactive and easy to use, and is ideal for performing quick parametric analysis, preliminary design and as a teaching tool for numerical stress analysis in a geotechnical context. This quick start tutorial will introduce you to the basic features of Examine2D, and demonstrate how easily a model can be created and analyzed. Examine2D is designed to be a quick and simple-to-use parametric analysis tool for investigating the influence of geometry and in-situ stress variability on the stress changes in rock due to excavations. The induced stresses in the plane of the analysis can be viewed by means of stress contour patterns in the region surrounding the excavations. Some important limitations of the program which should be considered when interpreting Examine2D output are described below. The assumption of plane strain means that the modeled excavation is of infinite length normal to the plane section of the analysis. In practice, as the out-of-plane excavation length becomes less than five times the largest cross-sectional dimension, the stress changes calculated by Examine2D begin to show some exaggeration since the real stress flow around the ends of the excavation is not taken into account. All of the stress is forced to flow around the excavation parallel to the analysis plane. This exaggeration becomes more pronounced as the out-of-plane length approaches the same magnitude as the in-plane dimensions. As long as this effect is kept in mind, the analysis may still yield useful insight into behavioral trends in these cases. The elastic boundary element analysis used in Examine2D dictates that the material being modeled is assumed to be: homogenous isotropic or transversely isotropic linearly elastic Obviously, most of the rock masses which will be modeled possess none of these properties. The degree to which the actual rock mass being modeled deviates from these assumed properties should be kept in mind when interpreting Examine2D output.http://decamiones.com/userfiles/eca-sinters-loop-controller-manual.xml