What are solid models?

Solid models are three-dimensional representations of objects that define their shape, volume, and physical properties in a way that can be used for design, analysis, and manufacturing. They are created using computer-aided design (CAD) software and typically include information about the object's geometry, material, and structure. Solid modeling allows for precise visualization and simulation of physical attributes, making it essential in engineering, architecture, and product design. Unlike wireframe or surface models, solid models represent the complete volume of an object, enabling more accurate calculations for stress, displacement, and other physical phenomena.