How are computer simulations used to test newly designed structures before construction?

Computer simulations are essential tools in engineering for testing newly designed structures before construction begins. These simulations utilize mathematical models—composed of equations that represent the functional relationships and dynamic behaviors of a system—to predict how a structure will respond to various physical variables and stress factors.1

By running these programs, engineers can evaluate a design's response to conditions that are difficult or unsafe to replicate in the real world, such as extreme weather, gravity, wind, or earthquakes. This process allows for the identification of potential problems and the optimization of components before any physical construction takes place.12

In modern practice, this is often supported by:
* Computer-aided design (CAD): Used to create geometric models of buildings and parts.13
* Building information modeling (BIM): A digital process that creates detailed, integrated representations to improve coordination and reduce errors.4
* Digital twins: While distinct from standard simulations due to their reliance on real-time data, they can also be used to investigate potential scenarios and predict outcomes throughout a structure's life cycle.5