PSI - Issue 33

Muhammad Faiz Dzulfiqar et al. / Procedia Structural Integrity 33 (2021) 59–66 Dzulfiqar et al. / Structural Integrity Procedia 00 (2019) 000–000

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3.2. Material and FE setting The use of a square hollow aluminum frame is one of the advantages of the design. The automatic thickness checking machine use 6061 Aluminum type, the use of this material is considered on the availability on the market and this material can be easily found. Thus this machine can be produced without a lack of the material frame. The geometrical size of the square hollow aluminum frame is shown in Fig. 2, which has a square shape of 25 mm width and length sized. The thickness of the frame is evenly 1 mm on each side, so then the width and length on the inner side are 23 mm. The material properties of 6061 Aluminum were taken from Autodesk Fusion360 Library is presented in Table 2, which later used on finite element analysis simulation. In view of the selling price, this material will cost relatively cheap and not as expensive as T-Slot Aluminum Frame. Furthermore, the frame connector, which is made from ABS Plastic, is needed to assemble the aluminum frame to stand rigidly. Here are the design and specification of the aluminum frame.

Fig. 2. Mechanical drawing of the aluminum frame.

Table 2. Material properties of the applied materials. Parameter

Value

Density

2.1 x 10 -6 kg/mm 3

Young's Modulus Poisson's Ratio

68.9 GPa

0.33

Yield Strength

275 MPa 310 MPa

Ultimate Tensile Strength

The applied force type on FEA has a significant result in the simulation result. That is why every force, load, and moment that occurred on the structure must be determined conscientiously. Simplifying the design to cooperate with the simulation process is necessary for some scenario. Simplifying method in this context means removing unnecessary parts and think of a scenario that is only looking to test a few components of a larger assembly. The simplified design, as presented in Fig. 3 in this FEA approach, was removing the Festo assembled parts and the specimen's jig by cause of only aiming the static load simulation results on the aluminum frame structure. This design should accommodate the weights and forces applied to its structure, so then the Finite Element Method is in hand to make sure that this structure is safe to use (Ary et al., 2020). The FEA determination of the structure of the automatic thickness checking machine shown in Fig. 3 is supported on 4 points constraint located in the base sectional area of the aluminum profile. Constraints are applied to a model to prevent it from moving in response to applied loads and add constraints to mimic environmental conditions. The loading types applied in this simulation are all distributed load on the top side of the frame and on the top side of the frame slider. The scenario of loading value is different on both sides of the frame mentioned before. On the top side, 50N forces are applied on one bracket then the total forces applied on four brackets are 200 N. On the frame slider, 40 N forces are applied on its top side, then the entire force applied on two frame sliders are 80 N. The applied mesh setup on the FE analysis also has a significant impact on the simulation result references by Wei et al., (2021). Citing that statement, the mesh properties as presented in Table 3 was carried out for the simulation to accomplish simulation result close to the experimental work.