PSI - Issue 33

Imam Abdul Majid et al. / Procedia Structural Integrity 33 (2021) 35–42 Majid et al. / Structural Integrity Procedia 00 (2019) 000–000

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5.3. Reaction force The reaction force is the force that arises due to an active force based on Newton's third law. The reaction force does not work on the same object with the force of action even though the magnitude is the same. It means that if there is a pair of forces in the opposite direction and the same magnitude. In Fig. 8, it is shown that the results obtained based on the analysis that has been done. The results obtained at the maximum Total of reaction force are 368.6 N and minimum 0 N. At Normal XX, the maximum result is 209.3 N and minimum -208 N. The Normal YY maximum result is 257.7 N and minimum -299.9 N. Also, at Normal ZZ, maximum result 281.4 N and minimum -306.2 N. a b

c

Fig. 8. The result of reaction force in normal direction. (a) X axis; (b) Y axis; (c) Z axis.

5.4. Safety factor Safety factor or Safety figures are one important parameter to determine whether a construction is safe or not. Safety Factor is a comparison between the permitted voltage of the material and the stress that occurs. Construction is declared safe if the safety number is above one. From the analysis results on the designed chassis, safety factor maximum at 15 and minimum at 1.153 (see Fig. 9). This result can be seen with a color orientation after the process simulation done.

Fig.9. The result of safety factor.