mini project

Write a report (4 page limit; formatting: double column, single spacing, size 12 Times New Roman) to discuss your findings. You will be required to include the following sections:

· Title

· Author line (including SID)

· Abstract

· Introduction

· Methods and Materials (including solid modelling and finite element method)

· Results

· Discussion

· Conclusion

· References

Similar to that of a scientific journal article (e.g. "Computers & Structures”). Include figures and graphs where appropriate.

Allocation of marks

· Abstract: 5%

· Introduction: 10%

· Methods and Materials: 20% (modelling, FEA, convergence tests, etc.)

· Results and Discussion 40% (stress, displacement, topology/remodelling)

· Conclusion: 10%

· Presentation: 15% (double column, format, references, figure/table quality and captions)

Topology optimisation for 3D cantilever structure

A 3 m long cantilever beam with square cross-section of side length 1 m is fixed on its left surface ABCD and subjected to two external loads on the right end corners F and G (each P = 1000 N), as shown in Fig. 3a. It is made of structural steel ( GPa and ).

a. Create the 3D model in ANSYS Workbench or Solidworks, and conduct an FE stress analysis of the cantilever beam in Workbench. Provide a graph of the von Mises stress contour .

b. In Workbench, perform topological optimisation on this cantilever beam to maximise the global stiffness while satisfying a volume constraint of the structure. Consider volume reductions of 40%, 60%, and 80%, and show each optimal “shape” in terms of density contours.

Figure. 3a

1

(� ����*3D��Y ��� $ % & ' ( ) + * 3� �����1 ��P ��P ��P x y o