Dynamic response of a plate laying on elastic base during the impact of a conical indenter

The article presents an analytical and numerical study of a dynamic conical indentation during impact process. The circular plate laying on the elastic base is subjected to impact load by the conical indenter. Local deformations in imprint zone are considered as elastic-plastic and general plate def...

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Bibliographic Details
Main Authors: Beskopylny, Alexey, Veremeenko, Andrey, Kadomtseva, Elena, Shilov, Alexander
Format: Conference Proceeding
Language:English
Subjects:
Circular plates
Displacement
Dynamic response
Elastic deformation
Finite element method
Fourier transforms
Green's functions
Impact loads
Indentation
Mechanical properties
Numerical analysis
Structural members
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Summary:The article presents an analytical and numerical study of a dynamic conical indentation during impact process. The circular plate laying on the elastic base is subjected to impact load by the conical indenter. Local deformations in imprint zone are considered as elastic-plastic and general plate deformations are only elastic. According to Timoshenko method, the general plate displacement is considered as the sum of the elastic-plastic displacement of the indenter and the elastic displacement of the plate at the impact point. The solution is constructed with Fourier transforms and the Green function of the dynamic process is obtained. The numerical study of impact indentation is received by FEM method. The dependences of displacements, velocities, and accelerations of the plate on time is obtained during impact. The experimental data obtained with the special device is compared with the results of the numerical analysis. The method of an assessment of the mechanical characteristics of steel is proposed on the basis of the research. Analysis of the dynamic response and non-stationary effects on structural elements is carried out on the base of the calculated impact process.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201819601001