![]() ![]() The second section of Vertac had the flexibility to accommodate different body regions for vertical loading experiments. It is possible to induce different acceleration pulses by using varying energy absorbing materials and controlling drop height and weight. The "launch-plate" on this end of the arm applied the vertical impact load/acceleration pulse under different initial conditions to biological/physical surrogates, attached to second section. The former section incorporated a falling weight to impact one end of the lever arm inducing a reaction at the other/load-receiving end. The two-part mechanically controlled device consisted of load-application and load-receiving sections connected by a lever arm. The objective of the study was to develop a simple device, Vertical accelerator (Vertac), to apply vertical impact loads to Post Mortem Human Subject (PMHS) or dummy surrogates because injuries sustained in military conflicts are associated with this vector example, under-body blasts from explosive devices/events.
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