摘要
对狗背部扩张后和相应对照侧的皮肤软组织在移植后的不同阶段分别进行应力 应变和应力松弛粘弹性力学特性及极限抗拉强度实验 .在移植后的短时期内 ,扩张组的力学性能相对于其对照组发生较大的偏离 ;但随着移植后恢复时间的增加 ,扩张组的力学性能又逐渐接近其对照组 .扩张试件在移植后 2 4周的生物力学性能基本恢复 。
The expanded skin specimens of dogs and their controls at different stages after grafting were studied. The stress-strain, stress relaxation's viscoelastic characteristics and tensile strength were measured. The results show that, during the initial stage after grafting, the biomechanical properties of expanded specimens deviate from those of their controls significantly. But the biomechanical properties of expanded specimens and their controls begin to close gradually in a longer recovering time. And when the recovering time reaches 24 weeks or longer, the experimental specimens exhibit the same mechanical characteristics as their controls. It is shown that viscoelasticity of expansive skin varies with time after grafting.
出处
《固体力学学报》
CAS
CSCD
北大核心
2002年第1期1-7,共7页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金资助项目 (10 0 72 0 0 6 )
