Can provide more information than a real crash if there is unexpected damage in a position where few sensors were placed. Uses of the Crash-analysis Models Are replacing physical crash testing as a design tool for new cars. Crash test used as confirmation and is required by the federal government. Differences of opinion. Engineers who work with the crash-analysis programs do not believe that physical crashes will or should be eliminated.
Simulation is an implementation of theory.
The programs are excellent design tools that enable increases in safety with far less development cost. But the real crash is the proof. Background Global warming predictions are based on computer models of climate. The earth is warmed by solar radiation. Since the beginning of the industrial revolution, concentrations have been increasing at a faster rate.