UNIVERSITYOF HERTFORDSHIRE School of Engineering and Computer Science (b) Name the three types of variables use for a design optimisation analysis (3 marks) Write down the expression for "Green strain' and 'Almansi strain' and define the terms. (6 marks) Fig. Q3a. shows the solution control parameters for a nonlinear analysis. (c) Fig. 23a Explain the role of 'Automatic time stepping' marked B and what will be the loading steps as 'Automatic time stepping' is ON, if a 100 N load is applied for an analysis? (6 marks) In Fig. Q3b is a poor-quality mesh of a structure for finite element analysis. (d) Fig. 236 (0) What could be the problem using the mesh shown in Fig. Q3b for the analysis? (ii) Sketch a proper mesh for the structure suitable for a good finite element analysis. (5 marks) (5 marks) UNIVERSITYOF HERTFORDSHIRE School of Engineering and Computer Science (b) Name the three types of variables use for a design optimisation analysis (3 marks) Write down the expression for "Green strain' and 'Almansi strain' and define the terms. (6 marks) Fig. Q3a. shows the solution control parameters for a nonlinear analysis. (c) Fig. 23a Explain the role of 'Automatic time stepping' marked B and what will be the loading steps as 'Automatic time stepping' is ON, if a 100 N load is applied for an analysis? (6 marks) In Fig. Q3b is a poor-quality mesh of a structure for finite element analysis. (d) Fig. 236 (0) What could be the problem using the mesh shown in Fig. Q3b for the analysis? (ii) Sketch a proper mesh for the structure suitable for a good finite element analysis