کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
103505 161384 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
How hard is hard enough? An investigation of the force associated with lateral blunt force trauma to the porcine cranium
ترجمه فارسی عنوان
سخت چگونه به اندازه کافی سخت است؟ تحقیق در مورد نیروی مرتبط با ترومای نیروی بلانت جانبی به جمجمه خوک
کلمات کلیدی
آسیب دندانی؛ نیروی اعمال شده؛ بار فشار هاپکینسون؛ شکستگی؛ شکنندگی؛ جمجمه خوک
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Fracture force of fronto-parietal region of porcine skull ranged from 1270 N to 12,800 N.
• Mean peak fracture force of fronto-parietal region of porcine skull: 7760 N (±4150 N).
• Fracture forces are similar to those seen in previous studies.
• The setup described, provides a more realistic impact than drop tests do.

Blunt force trauma forms a substantial portion of deaths worldwide. However, few studies have attempted to determine the force involved with blunt force trauma to the lateral part of the head. Nor have many studies been conducted at velocities exceeding 10 m/s. The acquisition of human tissue for experimental studies is becoming increasingly difficult. As such, the current study investigates the trauma and the force involved with cranial blunt force trauma in a porcine model. Thirty whole porcine heads were subjected to single impact tests on the fronto-parietal region at velocities ranging from 10 m/s to 25 m/s. Half the specimens were subjected to impact by a short projectile resembling a hammer head and the other half were subjected to impact with a Hopkinson pressure bar (HPB). Both implements had the same impact diameter and were machined from the same material. The HPB is an apparatus commonly used in material testing. Its use to determine fracture force in whole cranial specimens is novel. Fractures appeared similar in both the hammer tests and HPB tests. Lacerations and fractures resembled the shape of the striker surface with the most common fracture observed being a semi-circular depressed fracture. The mean peak fracture force was 7760 N (±4150 N), with a mean displacement of 3.1 mm (±1.1 mm). Peak fracture forces concur well with previous studies although no clear trend appears to exist between level of trauma and peak impact force.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Legal Medicine - Volume 17, Issue 1, January 2015, Pages 1–8
نویسندگان
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