Pig Organ Energy Loss Comparison Experiments Using BBs.
Torso models for ballistics research require that the mechanical properties of simulant materials must match the heterogeneous nature of tissues/organs within the human thorax/abdomen. A series of energy loss experiments were conducted on fresh porcine organs/tissues at room temperature and 37°C, using steel 4.5 mm BBs fired from a Daisy(®) brand air rifle. They were compared to FBI and NATO specification ordnance gelatin and a candidate surrogate material called Simulant "A". Two CED M2 chronographs measured BB velocity. The resulting energy loss was established using KE = 1/2 mv² before and after target perforation. The combined results at room temperature and 37°C were as follows: FBI specification gelatin was similar (p > 0.05) to heart and lung, spleen was similar to NATO specification gelatin, Simulant "A" was similar to hindquarter muscle, and hindquarter muscle, kidney, and spleen were similar to each other regarding energy retardation. These results can be used as a basis for the development of simulant materials to create an anatomically correct heterogeneous model.
Discipline of Anatomy and Pathology, The University of Adelaide, Frome Road, Adelaide, SA, Australia.
Nicholas R
NR
Maiden
Discipline of Pharmacology, The University of Adelaide, Frome Road, Adelaide, SA, Australia.
Ian
I
Musgrave
Ray Last Laboratory, The University of Adelaide, Frome Road, Adelaide, SA, Australia.
Wesley
W
Fisk
Discipline of Anatomy and Pathology, The University of Adelaide, Frome Road, Adelaide, SA, Australia.
Roger W
RW
Byard
D000818:Animals; D005389:Firearms; D044709:Forensic Ballistics; D005780:Gelatin; D006801:Humans; D008954:Models, Biological; D034421:Sus scrofa; D013552:Swine; D014948:Wounds, Gunshot
D005780:Gelatin
10% ordnance gelatin; 20% ordnance gelatin; Simulant “A”; energy loss; forensic science; porcine organs; thixotropy