GitHub Repository

https://github.com/siddhesh1594/reserve-factor-calculator

This repository contains the HyperMesh (.hm) file and the corresponding FEM file used for the finite element analysis. Additionally, an Excel sheet is included, which contains all the output values from the FE model, along with results calculated using Excel formulas and Python scripts.

A Jupyter Notebook (Python) is also provided, which contains the code for automated Reserve Factor (RF) calculation for panel buckling

reserve-factor-calculator

• README.md - Ream me file
• panel_buckling.ipynb – Main Python script
• all_subcase_panel_buckling_calculations_python.xlsx – Stress data input

Tools & Technologies

• FE Software: HyperMesh, OptiStruct
• Programming: Python (NumPy, pandas, matplotlib)
• Data Handling: Excel (for input/output), CSV/XML from FE results
• Post-processing: HyperView Results-Query scripting

Goals

• Evaluate Initial Structural Safety
  • Calculated reserve factors (RF) for panel buckling and skin + stringer combined buckling using Euler column buckling theory, across all load cases from the FE model.
• Geometry Optimization under Constraints
  • Modified skin thickness and stringer dimensions in the FE model to meet minimum RF ≥ 1 requirement, considering weight constraints and manufacturability.
• Validation of Redesigned Structure
  • Rechecked reserve factors for both panel and combined buckling failure modes to ensure structural adequacy after redesign.

Tasks Completed