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All Journal Jurnal Rekayasa Mesin Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi
Dedy Triawan Suprayogi
Universitas Sultan Ageng Tirtayasa
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Optimization of the Old Design of Double Axle Truck Tailgate Arm and Comparison of Loading Simulation of the New Double Axle Truck Tailgate Arm Design Using FEM (Altair Inspire) Hengki Frisa Sukresno; Erwin; Dedy Triawan Suprayogi
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 8 Number 1 (2026)
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v8i1.9453

Abstract

This study optimizes and compares the structural performance of Type A and Type B tailgate frame arm designs for double commercial trucks to improve safety, efficiency, and regulatory compliance. Analytical calculations and Finite Element Analysis using Altair Inspire were employed under a 650 kg operational load. Three materials ASTM A36, Aluminium 7075-T6, and Stainless Steel AISI 304 were evaluated in terms of stress, displacement, and safety factor. Results indicate that the Type B design reduces displacement by approximately 40% compared to Type A, while improving load distribution and structural stiffness. Aluminium 7075-T6 provides the best strength to weight ratio, whereas ASTM A36 remains the most cost-effective option. Only the Type B design complies with the Indonesian Ministry of Transportation clearance requirement (<200 mm). These findings demonstrate that Altair Inspire supports an effective optimization workflow for developing lighter, safer, and regulation compliant tailgate frame arm designs.
Evaluation of Burst Pressure on API X52 Pipes: Validation of Predictive Models via Full-Scale Experimental Data Teddy Setiawan; Dedy Triawan Suprayogi; Hadi Wahyudi
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2026): Volume 21, Nomor 1, April 2026
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v21i1.7209

Abstract

Ensuring the operational safety of steel pipelines depends heavily on understanding their failure points, or burst pressure. While various mathematical models are widely used in engineering practice, their accuracy for specific grades like API X52 often lacks robust field validation, as these models are essentially simplifications of complex real-world conditions. This study bridges this gap by evaluating the predictive accuracy of five major models-barlow, Von Mises, Zhu-Leis, API RP 1111 and DNV-OS-F101 against data obtained from a full-scale hydrostatic burst test. Using a pipe specimen with a 12 inch diameter and 11.13 mm wall thickness, the experimental result identified the actual burst pressure at 5,400 psi. comparative analysis revealed that the Barlow equation provided the highest accuracy with a relative error of only 4.12%, followed by the semi-empirical Zhu-Leis solution with a 6.97% deviation. Conversely, API RP 1111 method was found to be highly conservative by showing 17.24% deviation, which underscores its role as a safe design limit rather than a predictor of actual failure. These findings offer practitioners confidence that for thin-walled API X52 pipes with a diameter to thickness ratio of approximately 29, the Barlow model remains a practical and reliable reference for assessing pipeline integrity and estimating safe by operating limits.
Co-Authors Erwin Hadi Wahyudi Hengki Frisa Sukresno Teddy Setiawan