🚧 Beam SFD & BMD Plotter 🚧

Plot Shear Force and Bending Moment Diagrams for Beams using Python + Flask

🌐 Live App: kushalnavodayan.azurewebsites.net
💻 Source Code: GitHub Repository

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🚀 Features

• Supports 3 types of beams:

  • Simply supported beam
  • Cantilever beam
  • Mixed beam

• Load handling:

  • Multiple point forces at any position
  • Distributed loads with start & end points
  • Distributed loads can follow equations:
    • Polynomial (x^2 + 3x + 5)
    • Trigonometric (sin(x), cos(x))
    • Exponential (exp(x))

• Unstable systems are detected and flagged.

• Matplotlib plots for SFD and BMD.

• Object-oriented design: all classes & methods can be reused in other projects.

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🛠️ Tech Stack

• Python (Core)
• Sympy – symbolic math
• NumPy – numerical computing
• Pandas – tabular handling
• Matplotlib – plotting
• Flask – web framework
• HTML + CSS + JS – frontend

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⚡ Installation & Usage

Clone the repo:

git clone https://github.com/kushaln3/Beams
cd Beams

Install dependencies:

pip install -r requirements.txt

Run Command-Line Version

python main.py

Run Web App Locally

python app.py

Then open http://localhost:5000 in your browser.

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🌐 Online Deployment

The project is deployed on Microsoft Azure:
👉 Try the Web App

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🔮 Future Improvements

• More user-friendly input format (e.g., accept 5x instead of 5*x)
• Add a proper unstable system error page in the web version
• Better frontend UI/UX improvements
• Add export options (PDF/PNG for diagrams)

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🙌 Acknowledgements

• Built as part of a BTech 1st Year MnC Project at IIT Guwahati.
• Special thanks to faculty: Tapan K. Mankodi for guidance and encouragement.
• No AI was used for the algorithmic/logic part – ChatGPT was used only for styling (colors, hover animations, buttons).
• Developed by Kushal N

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