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Intro1_M09_loading - Loading Chapter 9 February 7, 2006...

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Unformatted text preview: Loading Chapter 9 February 7, 2006 Inventory #002268 9-2 INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS - Part 1 Part 1 Part 1 Training Manual • The solution step is where we apply loads on the object and let the solver calculate the finite element solution. • Loads are available both in the Preprocessor and Solution menus. Chapter 9 - Loading Overview February 7, 2006 Inventory #002268 9-3 INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS - Part 1 Part 1 Part 1 Training Manual • There are five categories of loads: DOF Constraints Specified DOF values, such as displacements in a stress analysis or temperatures in a thermal analysis. Concentrated Loads Point loads, such as forces or heat flow rates. Surface Loads Loads distributed over a surface, such as pressures or convections. Body Loads Volumetric or field loads, such as temperatures (causing thermal expansion) or internal heat generation. Inertia Loads Loads due to structural mass or inertia, such as gravity and rotational velocity. Chapter 9 - Loading A. Define Loads February 7, 2006 Inventory #002268 9-4 INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS - Part 1 Part 1 Part 1 Training Manual • You can apply loads either on the solid model or directly on the FEA model (nodes and elements). – Solid model loads are easier to apply because there are fewer entities to pick. – Moreover, solid model loads are independent of the mesh. You don’t need to reapply the loads if you change the mesh. Constraints at nodes FEA model Pressures on element faces Force at node Constraint on line Solid model Pressure on line Force at keypoint Chapter 9 - Loading …Define Loads February 7, 2006 Inventory #002268 9-5 INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS INTRODUCTION TO ANSYS - Part 1 Part 1 Part 1 Training Manual • Regardless of how you apply the loads, the solver expects all loads to be in terms of the finite element model. Therefore, solid model loads are automatically transferred to the underlying nodes and elements during solution....
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This note was uploaded on 12/10/2009 for the course ME master taught by Professor Mon during the Spring '09 term at Hanyang University.

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Intro1_M09_loading - Loading Chapter 9 February 7, 2006...

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