Abstract
The article presents specialized software methods for reducing stress concentration. Objects of study are cylindrical test specimens subjected to axial loading. Notching with different shapes and sizes on the specimens were formed to reduce the stresses in the endangered areas. The geometric parameters of notches identified through the specialized built-in modules to the ANSYS software. An analysis performed were to show the influence of stresses acting on the fatigue limit during different cycles. The results of the study were present in a graphical form.
Highlights
Stress concentrations are one of the main problems that arise in the construction of parts in mechanical engineering
Increasing stresses in local areas can lead to loss of performance or destruction of components. This is one of the main reasons why the optimization of the details in mechanical engineering is related to the reduction of the stress concentration and the increase of the fatigue limit
The main goal of the present work is to reduce the stress concentration in cylindrical test specimens subjected to axial loading with the help of the specialized ANSYS software
Summary
Stress concentrations are one of the main problems that arise in the construction of parts in mechanical engineering. An optimization approach for stress reduction in stepped specimens subjected to axial loads is proposed in [1]. The analysis of the obtained results shows that the applied "direct search simulated annealing" method reduces the stress values, and the optimized shoulder fillet are located on a smaller area. An approach to stress reduction in stepped shafts is presented in [5] It is based on the methods CAO (Computer Aided Optimization) and FEM, which are used to optimize the geometric parameters, with the main shoulder fillet located between the steps of the shafts. The main goal of the present work is to reduce the stress concentration in cylindrical test specimens subjected to axial loading with the help of the specialized ANSYS software
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