Ansysanalysis of Beam and Truss System in Ansys Apdl
Task 1 Young’s Modulus E = 170 x 103 MPa Poisson’s ration v = 0.3 Yield Stress = 290 MPa Ultimate Stress = 480 MPa Passport Number: A00740458 Table 1.1: Load Acting on Joint Joint 3 4 5 Load in Newton 9.81 x 8 9.81 x 5 9.81 x 4 Load Equivalent(N) 78.48 49.05 39.24
Figure1.1: Finite element Truss Model 1
Figure 1.2: Meshed FE Model
Figure1.3: Meshed FE Model with Load Constraints
2
DISCUSSION Element Type Chosen for Meshing (Link 2D Spar 1): The element used for the analysis of the FE model is the 2D spar 1 of the Link 1 element type. 2D Spar 1 can be used extensively in 2Dimensional and one dimensional truss analysis, link analysis, etc. The Link 2D Spar 1 element is uniaxial, that is, deformation is analysed along one axis. The element was used in the analysis of this truss because of its elements’ uniaxial tension-compression feature and nodes degree of freedom, each node undergoing a translation along x-y direction. One of the uniqueness of this element type is the disregarding of any bending of the element, just like that of a pin-jointed structure.
Figure 1.4: Element Type dialog box Real Constant: The real constant defines the cross sectional area of the model.
Figure 1.5: Real Constant Dialog box 3
Material Model: The material Model used in this analysis is the Structural Linear Elastic Isotropic material model. This analysis is categorised as static structural analysis. It analyses the effect of a steady loading conditions, externally applied loads and pressure, steady state inertia forces (e.g. gravity), imposed displacement, etc. This analysis is employed to discover the displacement, stress, strain and forces in structural components. The model material is considered Linear because the material property of the model requires a non thermal analysis and requires a sole iteration. Elastic: The material returns to its original size after the applied force is removed, provided the stress does not exceed the material yield stress. It is termed
Figure1.1: Finite element Truss Model 1
Figure 1.2: Meshed FE Model
Figure1.3: Meshed FE Model with Load Constraints
2
DISCUSSION Element Type Chosen for Meshing (Link 2D Spar 1): The element used for the analysis of the FE model is the 2D spar 1 of the Link 1 element type. 2D Spar 1 can be used extensively in 2Dimensional and one dimensional truss analysis, link analysis, etc. The Link 2D Spar 1 element is uniaxial, that is, deformation is analysed along one axis. The element was used in the analysis of this truss because of its elements’ uniaxial tension-compression feature and nodes degree of freedom, each node undergoing a translation along x-y direction. One of the uniqueness of this element type is the disregarding of any bending of the element, just like that of a pin-jointed structure.
Figure 1.4: Element Type dialog box Real Constant: The real constant defines the cross sectional area of the model.
Figure 1.5: Real Constant Dialog box 3
Material Model: The material Model used in this analysis is the Structural Linear Elastic Isotropic material model. This analysis is categorised as static structural analysis. It analyses the effect of a steady loading conditions, externally applied loads and pressure, steady state inertia forces (e.g. gravity), imposed displacement, etc. This analysis is employed to discover the displacement, stress, strain and forces in structural components. The model material is considered Linear because the material property of the model requires a non thermal analysis and requires a sole iteration. Elastic: The material returns to its original size after the applied force is removed, provided the stress does not exceed the material yield stress. It is termed