| Graphical models of dominant topologies of polymer-substrate adhesive-interfacial strength and toughness | |
王新天洋1,2; Liao LJ(廖丽涓)1,3 ; Wu XQ(吴先前)1,3; Huang CG(黄晨光)2,3,4
| |
| Corresponding Author | Liao, Lijuan([email protected]) |
| Source Publication | ACTA MECHANICA SINICA
 |
| 2025-03-01 | |
| Volume | 41Issue:3Pages:11 |
| ISSN | 0567-7718 |
| Abstract | It is a challenge to determine the dominant topological characteristics of mechanical properties of adhesive interfaces. In this paper, we used graph theory and molecular dynamics simulation to investigate the influence of topological characteristics on the strength and toughness of highly cross-linked polymer interface systems. Based on the microstructure of the adhesive system, we extracted the dominant topological characteristics, including the connectivity degree (D) that determines the yield strength, and the average node-path (P) and the simple cycles proportions (R) that determine the deformability and load-bearing capacity during the void propagation respectively, which co-determine the toughness. The influence of the wall-effect on the dominant topological characteristics was also analyzed. The results showed that the interfacial yield strength increases with the increase of D, while the toughness increases with the increase of P and R. The wall-effect has a significant influence on D, P, and R. The strong wall-effect causes the enrichment of amino groups near the wall and insufficient cross-linking away from the wall, leading to the lower D and R, i.e., the lower yield strength and load-bearing capacity during the void propagation. With the attenuation of the wall-effect, the D increases gradually, while the P and the R first increase and then decrease, showing an optimized wall-effect for the toughness of the adhesive interface. This paper reveals the dominant topological characteristics of adhesive interfacial strength and toughness, providing a new way to modulate the mechanical properties of polymer adhesive interface systems. |
| Keyword | Graph theory Molecular dynamics simulation Strength and toughness Highly cross-linked adhesive interface system Dominant topological characteristics |
| DOI | 10.1007/s10409-024-24181-x |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:001324824300003 |
| WOS Keyword | NETWORK STRUCTURE ; DESIGN ; NANOCOMPOSITES ; DELAMINATION ; INTERPHASE ; MECHANISM ; FRACTURE ; JOINT |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Key R&D Program of China[2021YFA0719200] ; National Natural Science Foundation of China[12272391] ; National Natural Science Foundation of China[12232020] ; National Natural Science Foundation of China[11672314] ; CAS Project for Young Scientists in Basic Research[YSBR-096] |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; CAS Project for Young Scientists in Basic Research |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Liao, Lijuan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96902 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| Recommended Citation GB/T 7714 | 王新天洋,Liao LJ,Wu XQ,et al. Graphical models of dominant topologies of polymer-substrate adhesive-interfacial strength and toughness[J]. ACTA MECHANICA SINICA,2025,41,3,:11.Rp_Au:Liao, Lijuan |
| APA | 王新天洋,廖丽涓,吴先前,&黄晨光.(2025).Graphical models of dominant topologies of polymer-substrate adhesive-interfacial strength and toughness.ACTA MECHANICA SINICA,41(3),11. |
| MLA | 王新天洋,et al."Graphical models of dominant topologies of polymer-substrate adhesive-interfacial strength and toughness".ACTA MECHANICA SINICA 41.3(2025):11. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment