PSI - Issue 33

Muhammad Sabiqulkhair Akbar et al. / Procedia Structural Integrity 33 (2021) 67–74 Akbar et al. / Structural Integrity Procedia 00 (2019) 000–000

73

7

(a)

(b)

(c) Fig. 6. (a) Stress of the ELT ratio 6; (b) stress of the ELT ratio 7; (c) stress of the ELT ratio 8.

The simulation outcome of the stress ratio represents graphically in Fig. 7. When the ELT values are 6, 7, and 8, as shown in the graph, the value begins to approach convergence. The closest stress ratio results when the ELT value is 7 with a ratio of 1.019, the nodes is 74016, the elements are 38009, and the error compared with the benchmark study is 1.9 percent.

0 0,2 0,4 0,6 0,8 1 1,2 1,4 1,6

Stress Ratio

5

6

7

8

9

10 11

ELT Ratio

Fig. 7. Convergence study based on stress ratio of the FE calculation.

4. Conclusions The research aims to determine how the ELT Ratio variance in the sample affects displacement, strain, and stress (von-Mises). Then, using converged ELT ratios with variations in parameters like displacement ratio, strain ratio, and stress ratio, the value of displacements, strain, and stress was evaluated. The different simulation results for each ELT ratio can be seen in the simulation results above, proving that the ELT ratios impact the simulation results. Convergence can be obtained from the displacement ratio, strain ratio, and stress ratio value closest to 1.