Who made continuum model?

The continuum model in physics and materials science is not attributed to a single individual but has evolved over time through contributions from various scientists. Key figures include Augustin-Louis Cauchy, who laid foundational work in continuum mechanics in the 19th century, and later contributions from others such as Lord Rayleigh and Henri Poincaré. The model describes materials as continuous media, allowing for the analysis of stress, strain, and deformation without considering the atomic-scale structure.