Department of Civil Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.

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# Department of Civil Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong. - PowerPoint PPT Presentation

## Department of Civil Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.

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##### Presentation Transcript

1. 3D Visualization and Simulation of Structures using Finite Element Analysis for TeachingBen Young Department of Civil Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.

2. SCOPE OF THE PRESENTATION • INTRODUCTION • FINITE ELEMENT ANALYSIS FOR RESEARCH • FINITE ELEMENT ANALYSIS FOR TEACHING • CONCLUSIONS

3. SCOPE OF THE PRESENTATION • INTRODUCTION • FINITE ELEMENT ANALYSIS FOR RESEARCH • FINITE ELEMENT ANALYSIS FOR TEACHING • CONCLUSIONS

4. However, these kinds of presentation are constrained in 2D. For most engineering concepts, it is necessary to show the object in 3D. INTRODUCTION • Most of the classroom teaching is conducted using transparency and PowerPoint presentation to deliver the lecture material.

5. INTRODUCTION • For instance, the stresses, strains and deformations of an object are the important parameters to illustrate the structural behaviour subject to loading. • However, these phenomenon are too abstract to show using transparency and PowerPoint presentation.

6. PROJECT OBJECTIVE • The primary objective of this project is to develop 3D visualization and simulation of structures using finite element analysis to enhance student understanding. • In the 3D computer animation, the stresses, strains and deformations of a structure are clearly shown. • Different stress levels are shown in different colour, and the deformations can be physically seen in the animations. • The 3D computer animation can be uploaded to the web for adoption in other engineering courses.

7. SCOPE OF THE PRESENTATION • INTRODUCTION • FINITE ELEMENT ANALYSIS FOR RESEARCH • FINITE ELEMENT ANALYSIS FOR TEACHING • CONCLUSIONS

8. Finite element model: • Element Type (S4R5) • Mesh size (10 x 10 mm) • Boundary Conditions (Fixed-ended) • Loading Method (Displacement Control) • Material Properties (True Curve)

9. SCOPE OF THE PRESENTATION • INTRODUCTION • FINITE ELEMENT ANALYSIS FOR RESEARCH • FINITE ELEMENT ANALYSIS FOR TEACHING • CONCLUSIONS

10. Stress ConcentrationAxially Loaded Steel Member

11. P 24mm 100mm 8mm

12. Material properties σ E ε • Steel member • Linear elastic material • Young’s modulus, E = 205GPa • Poisson’s ratio, υ = 0.3 • Saint-Venant’s Principle

13. Stress Concentration Steel Plate with Circular Hole under Tensile Concentrated load

14. Hole diameter=20mm P 60mm P 12mm 168mm

15. Stress Concentration Steel Plate with Circular Hole under Tensile Distributed load

16. Hole diameter=20mm 60mm P N/mm2 12mm 168mm

17. Axially Loaded Member Subjected to compression

18. SCOPE OF THE PRESENTATION • INTRODUCTION • FINITE ELEMENT ANALYSIS FOR RESEARCH • FINITE ELEMENT ANALYSIS FOR TEACHING • CONCLUSIONS

19. The stresses, strains and deformations of an object can be shown using the 3D visualization and simulation method. These parameters are important to illustrate the structural behaviour in engineering concepts. Conclusions • The 3D visualization and simulation is a useful tool for teaching. • Different stress levels can be shown in different colour. The deformations can be physically seen in the animations. • The money obtained from CELT is very useful for teaching in UST.

20. Acknowledgments The work described in this paper is supported by the grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project Account: HKUST-1-U). I would like to express my gratitude to Ms. Charlotte Chow, Mr. Tak S. Ha, Mr. Nick Noakesof the Center for Enhanced Learning and Teaching at HKUST for their support and assistance of this project.

21. Thank you The Hong Kong University of Science & Technology