MDC Buckling Tool (Excel Calculator) from Structured chaos: redefining the design of buckling-critical cylindrical shells

An interactive Excel-based calculator that implements the Mechanistic Design Curve (MDC) framework for predicting knockdown factors (KDF) of cylindrical and conical shells under axial compression. Includes input fields, 2D interpolation, dynamic plots, and license/disclaimer information. Suitable for practical design studies and educational use.