Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Journal of Mechanical Engineering Science and Technology Andalasian International Journal of Applied Science, Engineering, and Technology
Shiddieqy, M. Hasbi Ash
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Crashworthiness and Deformation Pattern Analysis of Single and Double Wall with Addition Infill Structure Bintara, Redyarsa Dharma; Choiron, Moch. Agus; Zakariya, Yahya; Shiddieqy, M. Hasbi Ash; Pratama, Fajar Adi
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016vbi12024p168

Abstract

Ship collisions are a phenomenon that often occurs in maritime transportation. One part of the ship that often experiences damage is the ship's wall (hull). This research aims to analyze and compare deformation patterns, stress distribution, and energy absorption in three wall models, single wall, double wall, and double wall, with the addition of infill structures. The infill structure used Polylactic Acid (PLA) polymer material because it provided convenience in the manufacturing process, while the walls of the test model used Aluminum 6063 material. The test model was developed by carrying out the design process using CAD software. Furthermore, a simulation test was carried out using software based on the finite element method with an explicit dynamic analysis type. Each test model received an impact load at a speed of 10 m/s that was carried out by the impactor. The results showed that the largest total energy absorption occurred in the double wall model with a filler structure (3643.49 J). In addition, the outward deformation pattern occurs in the double wall without a filler structure, while the inward occurs in the model with the addition of a filler structure. There were three types of stress distribution for single wall, double wall, and double wall with the addition of infill structure, namely concentrated stress, inline uniform stress, and a combination of both concentrated and inline uniform stress, respectively.
The Effects of Angle of Attack, Aspect Ratio, and Leading-Edge Curvature on Supersonic Fin Performance Shiddieqy, M. Hasbi Ash; Andoko, Andoko
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 5 No. 2 (2025): July 2025
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v5i02.243

Abstract

The aerodynamic optimization of fin-stabilized rockets operating under supersonic conditions remains a critical challenge in aerospace enginnering. Current studies often fail to capture the combined effects of multiple geometric parameters on aerodynamic performance. This research employs a full-factorial design of experiments (DoE) integrated with computational fluid dynamics (CFD) simulations using the k-w SST turbulence model to evaluate the influence of angle of attack (AoA), fin aspect ratio, and leading-to-drag ratios, with higher AoA increasing lift but also inducing drag penalties. Contrary to conventional assumptions, lower aspect ratios (around 0.3) produced higher lift, while increasing aspect ratio resulted in more complex shock interactions and drag rise. A progressive increase in leading-edge curvature improved lift and reduced drag, with the best performance observed at curvatures around 30-40 mm. These findings highlight the critical role of geometric configuration in managing supersonic aerodynamic behavior, including shock wave formation, boundary layer dynamics, and vortex control. The study provides a comprehensive framework for optimizing fin geometry to enhance aerodynamic efficiency in high-speed flight.
Co-Authors Andoko Andoko, Andoko Moch. Agus Choiron Pratama, Fajar Adi Redyarsa Dharma Bintara Zakariya, Yahya