Inclusion Size Effect on Mechanical Properties of Particle Hydrogel Composite

作     者：Xiaocheng Hu Shaoxing Qu 

作者机构：State Key Laboratory of Fluid Power and Mechatronic SystemKey Laboratory of Soft Machines and Smart Devices of Zhejiang ProvinceDepartment of Engineering Mechanics38 Zheda RoadHangzhou 310027China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2019年第32卷第5期

页      面：643-651页

核心收录：

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：supported by the Fundamental Research Funds for the Central Universities 

主　　题：Particle hydrogel composite Size effect Finite element method 

摘      要：Particle hydrogel composite(PHC)combines the characteristics of at least two mat erials and has pot ential applications in many *** functions require the particle size to range from nanometer to millimeter,which has a noticeable effect on the mechanical properties of the hydrogel *** this paper,the mechanical properties of silica-inlaid PAAM hydrogel are measured with various particle diameters from 75 nm to 50|*** results show no obvious size effect on the mechanical properties of PHC when the particle diameter falls in micron ***,as the particle size decreases to nanoscale,the modulus of the PHC begins to increase *** size-irrelevant moduli and stress fields of PHCs with random and uniform particle distributions under different loading conditions are obtained based on the finite element ***,the toughening mechanism and the failure of the PHC are *** size-irrelevant modulus of the PHC is also predicted by the equivalent inclusion ***,the interaction between the hydrogel polymer chains and the particles is described from the microscopic point of view,requiring the nanoscale size-dependent theory and new experimental approach to further explore the mechanical proper ties of PHC.