分段本构模型在胶原纤维组织中的应用。
A piecewise constitutive model for collagen fiber tissues.
机构信息
School of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang, Jiangxi, 330063, PR China.
State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an, Shaanxi, 710049, PR China.
出版信息
J Mater Sci Mater Med. 2022 Apr 28;33(5):39. doi: 10.1007/s10856-022-06660-9.
Inspired by Meyers et al. (Science, 2013), a piecewise model is established so as to individually predict both the heel region and the linear region of stress-strain curve. When the piecewise model satisfactorily predicts the experimental data, the constitutive parameters are precisely identified with definite physical significances. Along with this piecewise guideline, a complete constitutive model can be established for the whole stress-strain curve of collagen fiber tissues with the failure region as well. Graphical abstract.
受 Meyers 等人的启发（《科学》，2013 年），建立了分段模型，以便分别预测应力-应变曲线的脚跟区域和线性区域。当分段模型很好地预测了实验数据时，本构参数就可以被精确地识别出来，并且具有明确的物理意义。沿着这条分段指导原则，还可以为胶原纤维组织的整个应力-应变曲线建立一个完整的本构模型，包括失效区域。
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