基于文献计量学的近场动力学研究的演进、热点和趋势分析OA

Peridynamics(PD)is a type of integral nonlocal continuum mechanics,originally developed for ana-lyzing damage,fracture,and failure in solids and structures under complex loadings.It has since been extended to diverse problems including diffusion-transport,fluid mechanics,and multi-physics/chemistry couplings(thermal,electrical,magnetic,hygro,chemical).Recent years have witnessed increasingly diversified dimen-sions,deepening research focus,and broadening applications within the peridynamics field.Based on the bib-liometric statistics and visual text-mining tool CiteSpace,PD's development history,current research hotspots,and future trends were reviewed.The research evolution of peridynamics can be categorized into the embryon-ic,the slow-growth,and the fast-growth periods.Leading contributing nations include China,the United States,the United Kingdom,Germany,Italy,and Türkiye.While the US maintains leadership across multiple domains,China exhibits the fastest growth rate,transitioning from following to paralleling and even leading in specific areas.Key research hotspots encompass PD theoretical modeling,numerical algorithms,dynamic crack propagation and severe fracture in solids,elastic-plastic/large deformation problems,multi-physics couplings(notably thermo-mechanical and fluid-solid),multi-scale and homogenization modeling of heterogeneous mate-rials,coupling PD with other methods(e.g.,PD-FEM,PD-SPH,PD-MD,PD-FVM),high-performance compu-ting,and the integration of PD with machine learning.These areas are anticipated to remain central to future re-search of peridynamics.