p-Index From 2020 - 2025
0.562
P-Index
This Author published in this journals
All Journal Jurnal Polimesin
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Design analysis of mold cavity and core on compression molding of composite material Muslimin Al Masta; Hasvienda M. Ridlwan; Dhiya Luqyana; Bayu Pambudi; Azam Milah Muhamad
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3311

Abstract

This study discusses the design analysis of compression molding cavity and core under 12 tons of pressure and 100oC heat using experimental analysis and Ansys R19.2 simulation. This compression mold is used to process composite materials, mainly thermoset matrix composites. The compression product is a tensile test specimen according to the ASTM D638-4 standard. The main concern of this study aimed to analyze the stress distribution and deflection due to the compression load and heat on the cavity and core of compression molding. Hence, the die construction is safe during the operation under these loads. The analysis was carried out using Von Mises's stress of static loading criteria. The research parameter examined are stress distribution, deflection, and some critical dimensions in the cavity and core. These parameters significantly affect mold performance, product quality, and service life. Experimental analysis shows that the maximum deflection of the cavity and the core is 4.40 x10-4 mm and 1.53 x 10−4 mm, respectively. On the other hand, Simulation analysis shows the maximum deflection of the cavity and core is 4.56 x 10−4 mm and 7.41 x 10-5 mm, respectively. The error between experimental analysis and simulation is 6.87 x 10-5 mm and 3.32 x 10-5 mm for the cavity and the core, respectively. For stress analysis, the maximum value is 37.94 MPa for both cavity and core. On the other hand, simulation analysis shows 262 MPa and 256 MPa for the cavity and core, respectively. Both experimental analysis and simulation show that the result complies with the standard, less than 0,025 mm for deflection, and stress is less than 1034 MPa for maximum stress. Therefore, compression mold structure is safely used.
Numerical simulation analysis of structural strength of portable skid for storage tank with 50.000 liter capacity Muslimin Al Masta
Jurnal POLIMESIN Vol 21, No 2 (2023): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i2.3501

Abstract

AbstrackA storage tank is a container used to store fluids such as fuel, water, and chemical. Skid construction is implemented to make the tank smoothly transported while operated, such as in the mining field. Skids were assembled on the storage tank's base to sit on the ground. This study aims to design and analyze a portable skid storage tank to resist the load of 50,000 liters (392 kN) of fuel and 45 kN of mass of construction itself statically. The skid's main components are a wear plate, pad eye, and seamless pipes of schedule 40 for support, central, and base. All structure's material is 250 MPa yield strength of ASTM 36 low carbon steel. Manual calculations and simulation analysis were implemented to review the skid structure's maximum stress and safety factor. The examination included pipe support, central pipe, and pad eye. Based on the result, the highest stress of 157.88 MPa by ANSYS and 148.07 MPa by manual calculation. Therefore, the construction is safely based on the Tresca and Von Mises criteria.