Structure finite element analysis for applied loads and boundary

Structure finite element analysis for applied loads and
boundary conditions

Table of Contents
1 Background.................................................................................................................................. 3
2 Finite element models................................................................................................................... 3
2.1 Model with linear 3D elements.............................................................................................3
2.2 Model with 3D Shell elements.............................................................................................5
3 Results and Discussion................................................................................................................ 6
4 Conclusions and future recommendations....................................................................................9

1 Background
Finite element analysis is a numerical approach for assessing structural integrity of different structures
Based on the applied loads, material used and boundary conditions applied, each structure behaves
differently i.e. structural performance varies. Based on input material properties which are elastic
modulus, yield strength and ultimate tensile strength, the performance change.
In current analysis study, we have analysed a horizontal beam supported on 2 vertical columns with
concentrated loads applied at mid-spans. There are different analysis methods which depend on the
type of element used. Current analysis has used 2 different type of elements which are linear 3D
element and 3D shell element. The results and accuracy of each method depends on the extent of
refinement and deformation in the structure. These 2 methods are simulated and reported here.
2 Finite element models
Finite element models are prepared using 2 different types of elements and different sub-sections
report results from each type of analysis.
2.1 Analysis using linear 3D elements
In this section, model from linear 3D elements and corresponding results are discussed.
The horizontal beam is 12000 mm in length and is supported on 2 columns which are 5000 mm each.
The modelled geometry’s dimensions are shown in figure 1. The horizontal beam has loads applied at
2 different locations which are 4000 mm apart from each other. The total vertical load V is 100 kN
which is divided in half and applied at 2 concentration locations. Another horizontal load of 10 kN is
applied on left column as shown in figure 1.
Figure 1. Dimensions of structure to be modelled in Abaqus for linear 3D elements