Open Access
Prashant Manvi,
Fareen Nizami,
Anandtheertha M R,
Srikanth H V,
- Department of Aeronautical Engineering, Nitte Meenakshi Institute of Technology, Bangalore Karnataka India
- Department of Aeronautical Engineering, Nitte Meenakshi Institute of Technology, Bangalore Karnataka India
- Department of Aerospace Engineering, RV College of engineering, Bangalore Karnataka India
- Department of Aeronautical Engineering, Nitte Meenakshi Institute of Technology, Bangalore Karnataka India
Abstract
The present study is aimed at designing a stress constrained topology optimized tube to improve the specific energy absorption (SEA) and reduce the peak crushing force. The research was aimed to develop an axial tube to withstand high impact loads thus improving the crash worthiness of the structure. Crash analysis of a 3D deformable circular tube having different thickness of 0.5 mm, 1 mm, 1.5 mm and 2 mm with a constant inner diameter and length sandwiched between two square rigid planar shell plates was performed. SEA and Peak crushing force (PCF) were computed post the crash analysis. Stress based topology optimization was then carried out on a prismatic tube by varying the Factor of Safety from 1.2 to 2 in steps of 0.2 using the SIMP algorithm on a tube with the highest SEA. Crash analysis was carried out post the optimization process in a similar manner by varying the thickness. SEA and PCF were computed, and results show that the optimized tube with the thickness of 1 mm absorbs 933.53 J of energy with a SEA of 27.22 J/g when compared to the prismatic tube (945.74 J) of the same thickness with a SEA of 17.06 J/g.
Keywords: SEA- Specific Energy Absorption, EA- Energy Absorption, PCF- Peak Crushing Force, MCF- Mean Crushing Force, SIMP method- Solid Isotropic Material with Penalization method, FOS- Factor of Safety.. UAV, GPS, Autodesk flow, Inertial Measurement Unit (IMU)
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Journal of Polymer and Composites
| Volume | |
| Received | January 3, 2024 |
| Accepted | January 19, 2024 |
| Published | May 13, 2024 |