颅骨组织的机械性质测定

Measurements of Mechanical Properties of the Cranial Bones

本文采用41例成人颅骨,截取264个试件,分别测试颅骨不同部位的3项机械传性:弹性模量,拉伸强度和冲击韧度。从获得的数据计算表明:成人额、顶、颞和枕骨的弹性模量值分别为10.49、11.95、12.44和11.73×10~5N~*/cm^2;拉伸强度分别为7326、5978、3306和5939.6N/cm^2;额、顶和颞骨的冲击韧度分别为46.45、45.8和41.8N.cm/cm^2 。不同年龄组颅骨各部位机械性质存在差异。

The mechanical properties of 264 pieces of cranial bone from different regions of 41 skull were measured. 3 parameters were taken, elastic modulus, tensile strength and impact toughness. The following values were obtained: elastic modulus of frontal, parietal, temporal and occipital bone were 10. 49,11. 95,12. 44 and 11. 73×105N/cm2 respectively, The values of elastic modulus in adult about before forty years old are close, but significantly higher than those over 40. Tensile strength values of frontal,parietal, temporal and occipital were 7326,5978,3306 and 5939.6 N/cm2 respectively. The impact toughness values of frontal, parietal and temporal bones were 46. 45,45. 8 and 41. 8 N. cm/cm2 respectively.