crash test dummy
full-scale anthropomorphic test devices (ATD) that simulate the dimensions, weight proportions and articulation of the human body, and are usually instrumented to record data about the dynamic behavior of the ATD in simulated vehicle impacts
en-US/ˈkɹæʃ ˈtɛst ˈdʌmi/
en-GB/ˈkɹæʃ ˈtɛst dʌmiː/