Experiment and Simulation of Erosion Behavior and Deformation Characteristics in Al6061-T6 Beam Due to Rhomboid Particle Impacts

• Published in: Tribology letters Vol. 69; no. 3
• Main Authors: Du, Mingchao, Li, Zengliang, Dong, Xiangwei, Fan, Chunyong, Che, Jiaqi, Zhang, Yanwen
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.09.2021; Springer Nature B.V
• Subjects: Cantilever beams; Chemistry and Materials Science; Corrosion and Coatings; Corrosion resistance; Deflection; Deformation; Deformation mechanisms; Elastic deformation; Energy; Erosion mechanisms; Experiments; Finite element method; Internal energy; Materials Science; Metal beams; Nanotechnology; Numerical models; Original Paper; Physical Chemistry; Plastic deformation; Simulation; Substrates; Surfaces and Interfaces; Theoretical and Applied Mechanics; Thin Films; Tribology; Velocity; Incident conditions; Deformation characteristics; Rhomboid particle impact beam; Particle rotation; Coupled FEM-SPH; Erosion mechanism
• ISSN: 1023-8883; 1573-2711
• DOI: 10.1007/s11249-021-01465-3

The erosion mechanism and deformation characteristics of rhomboid-shaped particle impacting metal beam are studied. Physical experiments of rhomboid-shaped particle impacting cantilever beam and fixed–fixed beam are carried out, respectively. The erosion behavior of particles and deformation characteristics of beam are captured by high-speed imaging system. Meanwhile, the numerical models of rhomboid-shaped particle impacting beam, based on FEM-SPH coupled method, are established. The effects of the geometrical parameters of the beam, the incident conditions of particle and the impact position on the elastic–plastic deformation of beam and rebound behavior of particles are further analyzed. The results show: (1) The width of cantilever beam affects its maximum deflection and deformation; (2) The threshold value of breakdown velocity is controlled by the substrate size; (3) The increment of internal energy is basically independent of the impact position; (4) The deflection value at impact position of beam is maximized under the critical impact condition.