School of Computing, Engineering and Mathematics

301022 Advanced Computer Aided Engineering

TUTORIAL ASSIGNMENT 1

Softcopy Due on 17:00pm, Friday, Week 4, 16/08/2019

Instructions:

• You must finish each question individually with a step-by-step manner to clearly show your problem- solving procedure. Microsoft EXCEL is encouraged to be utilised to replace hand calculation. ANSYS Workbench should be used to conduct any FEA in this unit.

• Note that Q is the last three digits of your student identification number.

• Only electronic version is accepted for submission via the vUWS site.

Question 1-1: 1-D Bar Element Method (20 marks)

Considering an assembly of two bar elements made of different materials as shown in Fig. 1-1, you are required to:

1) create a two bar-element model to determine nodal displacements, element stresses, and reaction force; and 2) use ANSYS to conduct an FEA for validation using the same FE model.

+ Q (lb.)

Figure 1-1 an assembly of two dissimilar bars

Tutorial Assignment 1 (100 marks, weighted 10%)

Question 1-2: 1-D Truss Element Method (30 marks)

The finite element model of a plane truss shown in Fig. 1-2 is composed of 4 members, all having a round cross section with a diameter of 20 + 0.Q mm and the modulus of elasticity E = 210 GPa. You are required to: 1) compute the nodal displacements in the global coordinate system for the loads shown as well as all the reactions at each support; and 2) use ANSYS to conduct an FEA for validation using the same FE model.

+ 0.Q (kN)

Figure 1-2 a plane truss of four members

Question1- 3: 1-D Frame Element Method (50 marks)

For the two-frame structure subjected to a uniformly-distributed loading depicted below in Fig. 1-3, you are allowed to use only two frame elements to conduct an FEA. The two frame members are made of square beams material properties and rectangular cross-section as well as the same height. You are required to:

a) determine the unknown displacements at the point B, the reaction forces at points A and C and the maximum stresses in the frame and b) apply ANSYS to validate the results obtained from a). + Q (lb/ft)

+ 0.Q (ft.)

Figure 1-3 a frame structure of two frame members

301022 Advanced Computer Aided Engineering

TUTORIAL ASSIGNMENT 1

Softcopy Due on 17:00pm, Friday, Week 4, 16/08/2019

Instructions:

• You must finish each question individually with a step-by-step manner to clearly show your problem- solving procedure. Microsoft EXCEL is encouraged to be utilised to replace hand calculation. ANSYS Workbench should be used to conduct any FEA in this unit.

• Note that Q is the last three digits of your student identification number.

• Only electronic version is accepted for submission via the vUWS site.

Question 1-1: 1-D Bar Element Method (20 marks)

Considering an assembly of two bar elements made of different materials as shown in Fig. 1-1, you are required to:

1) create a two bar-element model to determine nodal displacements, element stresses, and reaction force; and 2) use ANSYS to conduct an FEA for validation using the same FE model.

+ Q (lb.)

Figure 1-1 an assembly of two dissimilar bars

Tutorial Assignment 1 (100 marks, weighted 10%)

Question 1-2: 1-D Truss Element Method (30 marks)

The finite element model of a plane truss shown in Fig. 1-2 is composed of 4 members, all having a round cross section with a diameter of 20 + 0.Q mm and the modulus of elasticity E = 210 GPa. You are required to: 1) compute the nodal displacements in the global coordinate system for the loads shown as well as all the reactions at each support; and 2) use ANSYS to conduct an FEA for validation using the same FE model.

+ 0.Q (kN)

Figure 1-2 a plane truss of four members

Question1- 3: 1-D Frame Element Method (50 marks)

For the two-frame structure subjected to a uniformly-distributed loading depicted below in Fig. 1-3, you are allowed to use only two frame elements to conduct an FEA. The two frame members are made of square beams material properties and rectangular cross-section as well as the same height. You are required to:

a) determine the unknown displacements at the point B, the reaction forces at points A and C and the maximum stresses in the frame and b) apply ANSYS to validate the results obtained from a). + Q (lb/ft)

+ 0.Q (ft.)

Figure 1-3 a frame structure of two frame members

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