COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE Name : Muhammad bin Ramlan Matrix No. : P 57600 Subject : Finite Element Method In Civil Engineering Year : 2011 / 2012 Lecturer : Prof Ir Dr Wan Hamidon bin Wan Badaruzzaman
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COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT
THICKNESS OF A FLAT PLATE
Name : Muhammad bin RamlanMatrix No.: P 57600Subject : Finite Element Method In Civil EngineeringYear : 2011 / 2012Lecturer : Prof Ir Dr Wan Hamidon bin Wan Badaruzzaman
Objective
1. Analyse the effect of buckling load for a different thickness types of flat plate subjected to in-plane compressive loading.
2. Discuss the result of the analysis prior to the experiment.
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Problem DefinitionNo
.Item Plate 1 Plate 2
1 Plate Size 2 m x 0.5 m 2 m x 0.5 m2 Plate Thickness 1 mm 5 mm3 Young Modulus 70E9 N/m2 70E9 N/m2
4 Poisson Ratio 0.3 0.35 Support Type Simply supported at all sides. Simply supported at all sides.
6 Load 24N of in-plane compressive load is applied to one of the short edges, parallel to the long sides.
24N of in-plane compressive load is applied to one of the short edges, parallel to the long sides.
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Description of LUSAS
• LUSAS is a finite element analysis software program which can solve all types of linear and nonlinear stress, dynamics, composite and thermal engineering analysis problems. The main components of the LUSAS are: – LUSAS Modeller - a fully interactive graphical user
interface for model building and viewing of results from an analysis.
– LUSAS Solver - a powerful finite element analysis engine that carries out the analysis of the problem defined in LUSAS Modeller.
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Finite Element Modelling• The finite element modelling using LUSAS was run as per below:
– Creating a new model– Inserting the feature geometry– Select the meshing– Specifying the geometric properties– Specifying the material properties– Specifying the support applied– Select the loading applied to the element– Eigenvalue analyst control– Saving the model– Running the Analysis– Printing the buckling load factor– Calculating the critical buckling load
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Result : Plate 1 (1mm thickness)
• A Loading Distribution On Plate 1
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Result : Plate 1 (1mm thickness)
• Deformed Mesh Layers On Plate 1
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Result : Plate 1 (1mm thickness)
• Eigenvalue Result Value for Plate 1
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Result : Plate 2 (5mm thickness)
• Loading Distribution On Plate 2
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Result : Plate 2 (5mm thickness)
• Deformed Mesh Layers On Plate 2
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE
Result : Plate 2 (5mm thickness)
• Eigenvalue Result Value for Plate 2
COMPARISON OF THE LINEAR BUCKLING ANALYSIS FOR DIFFERENT THICKNESS OF A FLAT PLATE