978-1-58503-400-0 -- ANSYS Tutorial [Release 11.0]

®ANSYS Tutorial Release 11.0 Structural & Thermal Analysis Using the ANSYS Release 11.0 Environment Kent L. Lawrence Mechanical and Aerospace Engineering University of Texas at Arlington SDC PUBLICATIONS Schroff Development Corporation www.schroff.com www.schroff-europe.com ANSYS Tutorial 2-1 Lesson 2 Copyrighted Plane Stress Material Plane Strain 2-1 OVERVIEW Copyrighted Plane stress and plane strain problems are an important subclass of general three-dimensional problems. The tutorials in this lesson demonstrate: ♦Solving planar stress concentration problems. Material ♦Evaluating potential inaccuracies in the solutions. ♦Using the various ANSYS 2D element formulations. 2-2 INTRODUCTION It is possible for an object such as the one on the cover of this book to have six components of stress when subjected to arbitrary three-dimensional loadings. When Copyrighted referenced to a Cartesian coordinate system these components of stress are: Normal Stresses σ , σ , σ x y zMaterial Shear Stresses τ , τ , τxy yz zx Figure 2-1 Stresses in 3 dimensions. Copyrighted In general, the analysis of such objects requires three-dimensional modeling as discussed in Lesson 4. However, two-dimensional models are often easier to develop, easier to solve and can be employed in many situations if they can accurately represent the behavior of the object under loading. Material 2-2 ...