计算机在材料科学中的应用上机实验七.doc

计算机在材料科学中的应用上机实验七 Static Analysis of a Corner Bracket 2.1.1. Problem Specification Applicable ANSYS Products: ANSYS Multiphysics, ANSYS Mechanical, ANSYS Structural, ANSYS ED Level of Difficulty: easy Interactive Time Required: 60 to 90 minutes Discipline: structural Analysis Type: linear static Element Types Used: PLANE82 ANSYS Features Demonstrated: solid modeling including primitives, Boolean operations, and fillets; tapered pressure load; deformed shape and stress displays; listing of reaction forces; examination of structural energy error Applicable Help Available: Structural Static Analysis in the ANSYS Structural Analysis Guide, PLANE82 in the ANSYS Elements Reference. 2.1.2. Problem Description This is a simple, single load step, structural static analysis of the corner angle bracket shown below. The upper left-hand pin hole is constrained (welded) around its entire circumference, and a tapered pressure load is applied to the bottom of the lower right-hand pin hole. The objective of the problem is to demonstrate the typical ANSYS analysis procedure. The US Customary system of units is used. 2.1.2.1. Given The dimensions of the corner bracket are shown in the accompanying figure. The bracket is made of A36 steel with a Young’s modulus of 30E6 psi and Poisson’s ratio of .27. 2.1.2.2. Approach and Assumptions Assume plane stress for this analysis. Since the bracket is thin in the z direction (1/2 inch thickness) compared to its x and y dimensions, and since the pressure load acts only in the x-y plane, this is a valid assumption. Your approach is to use solid modeling to generate the 2-D model and automatically mesh it with nodes and elements. (Another alternative in ANSYS is to create the nodes and elements directly.) 2.1.2.3. Summary of Steps Use the information in the problem description and the steps below as a guideline in solving the problem on your own. Or, use the detailed interactive step-by-step solution by choosing the link for step 1. 启动ANS