Real Damage - Realistic Internal Damage is a Blender addon for creating deep damage in geometry, down to almost complete destruction of the mesh, with the option to add reinforcement. It works through a short sequence: you select the object or set of objects you want to destroy, define the destruction settings such as depth, scale and clarity, then enable the Internal Damage function to generate the damage based on the selected object and those parameters.
Damage settings cover depth, scale, roughness and mesh density, and the destruction can be tuned from easy to hard to match different tasks. A steel reinforcement grid can be added and adjusted to the object; it is scalable and transformable, with controls for density, power noise, number of polygons and grid type. You can apply the addon to all objects at once rather than selecting them individually.
Procedural concrete and steel materials are added automatically and can be replaced with your own. A demo video is available, and the developer notes the addon suits various architectural designs.