Development of the finite element method for solution of the contact problem of interaction between the tool and workpiece
- Authors: Krechetov A.A.1
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Affiliations:
- Issue: No 3 (2014)
- Pages: 82-89
- Section: TECHNOLOGY
- URL: https://journals.rcsi.science/1994-6309/article/view/302221
- ID: 302221
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Abstract
The instrument of technological inheritance mechanics is developed to design strengthening technological processes, providing specified operation characteristics of machine parts. The key issue, that determinate the accuracy of the developed technological solutions, is the adequacy of calculating the mechanical state in the deformation actual processes that occur in the metal surface layer during processing. The traditional approach to solving the problems of contact interaction of the workpiece and the tool has several drawbacks that lead to the possibility of significant errors in the calculation. An approach to the solution of the contact problem by incorporating a system of equations of the finite element approximation of the contact surface is offered in the paper. An example of the calculation in the elastic formulation for linear triangular element is given. It is noted that the proposed solution has a number of advantages in comparison with a solution that can be obtained using commercial CAE-systems that use the finite element method to calculate the stress-strain state.
Keywords
The instrument of technological inheritance mechanics is developed to design strengthening technological processes, providing specified operation characteristics of machine parts. The key issue, that determinate the accuracy of the developed technological solutions, is the adequacy of calculating the mechanical state in the deformation actual processes that occur in the metal surface layer during processing. The traditional approach to solving the problems of contact interaction of the workpiece and the tool has several drawbacks that lead to the possibility of significant errors in the calculation. An approach to the solution of the contact problem by incorporating a system of equations of the finite element approximation of the contact surface is offered in the paper. An example of the calculation in the elastic formulation for linear triangular element is given. It is noted that the proposed solution has a number of advantages in comparison with a solution that can be obtained using commercial CAE-systems that use the finite element method to calculate the stress-strain state.
About the authors
A. A. Krechetov
Email: krechetov@mmfkuzstu.ru
Ph.D. (Engineering), Associate Professor, Kuzbass State Technical University named after T.F. Gorbatchev, e-mail: krechetov@mmfkuzstu.ru
References
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