PSI - Issue 33

Ilham Widiyanto et al. / Procedia Structural Integrity 33 (2021) 27–34 Widiyanto et al. / Structural Integrity Procedia 00 (2019) 000–000

32 6

Table 4. Summary of the strain values on three directions. Type Minimum

Maximum 2.53 x 10 -4 3.179 x 10 -4 1.793 x 10 -4

X axis Y axis Z axis

-2.845 x 10 -4 -6.649 x 10 -4 -1.978 x 10 -4

4.3. Displacement Finite Element Analysis (FEA), also called finite element method (FEM), is a numerical method that utilizes displacement. Analysis of an elastic body to develop an approximate solution to displacement. Displacement formulation of the FEM is used to calculate component displacements, strains, and stress analysis. The displacement is required in many of the right designs. These results may be used in the designing process of solid mechanics. The displacement of the chassis and the location of maximum displacement of the GT40 Chassis is shown in Fig. 6 and Table 5.

a

b

c

Fig. 6. Contours of structural displacement on different planes. (a) XX plane, (b) YY plane, (c) ZZ plane

Table 5. Summary of the displacement values on three planes and resultant values. Type Minimum

Maximum 0.441 mm 0.02946 mm 0.004301 mm 0.02199 mm

Resultant XX plane YY plane ZZ plane

0 mm

-0.05136 mm -0.4407 mm -0.02255 mm

4.4. Reaction force The reaction force comes from Newton's third law motion. Newton's third law motion contains every action, and there is an equal and opposite reaction (Lui et al.,2004). The direction of the reaction force is opposite to the direction of the load force on the chassis. The reaction force does not work on the same object with the force of action even though the magnitude is the same (Serway et al., 2009). This means that if there is a pair of forces in the opposite direction and the same magnitude. The results can be seen in Table 6 and Fig. 7.