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Structural Engineering and Mechanics Volume 52, Number 3, November10 2014 , pages 469-483 DOI: https://doi.org/10.12989/sem.2014.52.3.469 |
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Performance analysis of spherical indentation process during loading and unloading - a contact mechanics approach |
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V. C. Sathish Gandhi, R. Kumaravelan and S. Ramesh
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| Abstract | ||
| In an indentation approach, the smooth rigid spherical ball penetrated into a deformable flat is considered for the study based on contact mechanics approach. The elastic-plastic frictionless spherical indentation analysis has been under taken in the finite element analysis using „ABAQUS‟ and experimental study. The spherical indentation has been studied for the materials like steel, aluminium, copper and brass with an identical spherical indenter for diverse indentation depths. The springback analysis is executed for studying the actual indentation depth after the indenter is unloaded. In the springback simulation, the material recovers its elastic deformation after the indenter is unloaded. The residual diameter and depth of an indentation for various materials are measured and compared with simulation results. It shows a good agreement between the simulation and an experimental studies. | ||
| Key Words | ||
| indentation; elastic-plastic; depth of indentation; springback analysis; indentation diameter; contact mechanics | ||
| Address | ||
| V. C. Sathish Gandhi: Department of Mechanical Engineering, University College of Engineering Ariyalur, (A constituent College of Anna University, Chennai), Ariyalur - 621 704, Tamilnadu, India R. Kumaravelan: Department of Mechanical Engineering, Velalar College of Engineering and Technology, Erode - 638 012, Tamilnadu, India S. Ramesh: Department of Mechanical Engineering, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600 062, Tamilnadu, India | ||