CAJ | 학술논문

为了获得骨骼肌肌外膜在外荷载作用下的宏观应力一应变关系及其随增龄过程的变化规律。根据胶原纤维在基质中的实际分布状况建立骨骼肌肌外膜细观力学模型，用此模型模拟分析骨骼肌肌外膜的细观力学特性。研究结果表明：1）在拉伸作用下，应力-伸长比曲线表现出准线性。2）增龄过程使结缔组织的刚度增加。3）讨论了同一重复单元中胶原纤维的多个周期分布对肌外膜宏观性能的影响。通过分析曲线可以得到随着胶原纤维周期的增大，肌外膜的弹性模量降低，刚度变小的结果。
위료획득골격기기외막재외하재작용하적굉관응력일응변관계급기수증령과정적변화규률。근거효원섬유재기질중적실제분포상황건립골격기기외막세관역학모형，용차모형모의분석골격기기외막적세관역학특성。연구결과표명：1）재랍신작용하，응력-신장비곡선표현출준선성。2）증령과정사결체조직적강도증가。3）토론료동일중복단원중효원섬유적다개주기분포대기외막굉관성능적영향。통과분석곡선가이득도수착효원섬유주기적증대，기외막적탄성모량강저，강도변소적결과。
In order to obtain the stress strain relationship of skeletal muscle epimysium under the exter hal loads and its variation with the aging process, a micromechanical model was established based on the actual distribution of collagen fibers in the ground substance in this study, by which the micromechanical property of the skeletal muscle epimysium was modeled and analyzed. The results show that 1 ~ the stress stretch ratio relationship is nearly linear in all the stretch ratio values; 2） the aging process increase tile crosslinking between collagen fibers and thus increase the stiffness of connective tissues; 3） the elastic modulus of the unit cell of skeletal muscle epimysium is decreases with the increasing period of fibers in unit length.