Constitutive model for nonlinear anisotropic swelling and self-growing of polymers and gels

IF 6.3 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Composite Structures Pub Date : 2025-03-04 DOI:10.1016/j.compstruct.2025.119020
Guangzheng Lv , Yunlong Li , Haohui Zhang
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引用次数: 0

Abstract

Due to exceptional swelling properties, gel polymers can form shape-deforming structures, rendering them suitable for applications. Research on dynamic polymers and polymer gels has developed several novel mechanisms beyond the swelling mechanism. These novel mechanisms also enable dynamic polymers to undergo shape transformations over time within a solution environment. Specifically, under certain environmental conditions, monomer solutions can undergo monomer insertion and facilitate the formation of new polymer chains. This process endows the polymer gel network with self-growing characteristics, making it better suited to meet the demands of applications in engineering. Introducing anisotropy into hydrogels makes it possible to meet the demands for non-uniform deformation of polymer gel structures in many scenarios, thereby facilitating the programmable anisotropic swelling. Although the potential applications of these technologies are extensive, many aspects of the self-growth and swelling deformation behaviors in anisotropic polymer gels remain underexplored. A micro-theoretical investigation into the self-growth process of fiber-reinforced polymer gels is proposed. The embedding of fibers within the growable polymer matrix is shown to guide the material toward exhibiting overall anisotropic behavior. To describe this response in detail, a constitutive model for self-growing fiber-reinforced polymer gels was developed and implemented through numerical simulations, which provides a theoretical foundation for predicting the complex deformation behaviors of anisotropic biomaterials.
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来源期刊
Composite Structures
Composite Structures 工程技术-材料科学:复合
CiteScore
12.00
自引率
12.70%
发文量
1246
审稿时长
78 days
期刊介绍: The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.
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