HIGHLIGHTING THE PRESENCE OF RESIDUAL STRESSES IN RING-SHAPED METALLIC TEST SAMPLES

Ionel Iulian HURJA, Paul BÂRSĂNESCU, Adriana MUNTEANU, Andrei Marius MIHALACHE, Adelina HRIȚUC, Dragoș Cristian ACHIȚEI, Laurențiu SLĂTINEANU

Abstract


The existence of residual stresses in the case of parts made of metallic materials can negatively affect the maintenance over time of some dimensions of the parts in which such stresses are found. It has been found that there are several distinct methods of evaluating the magnitudes of residual stresses in parts made of metallic materials. A method was proposed based on ring-type test samples, on which parallel ridges were drawn along a radial direction. By measuring the distances between the ridges before and after machining a radial slot between the ridges, it becomes possible to obtain information on the existence, type, and magnitude of residual stresses in the test sample material. Some preliminary experimental research has proven the possibility of using such a method to highlight residual stresses.


Full Text:

PDF

References


Bârsănescu, P.D., Method for determining the spatial state of residual stresses, in Romanian, Patent RO 122875 B1, BOPI nr. 3/2010

Bârsănescu P.D., Tensometric method and element for determining the spatial stress state of a solid body, in Romanian, Patent RO 129673 B1, BOPI nr. 10/2017

Prevey P. S., Cammet J.T., Method and apparatus for providing a layer of compressive residual stress in the surface of a part, Patent no. US7159425B2, 2007

Prime, M.B., System and method for measuring residual stress, Patent no. US 6470756 B1, Los Alamos, NM (US), 2002

Viertl, J., Marshall, G.J., Semi-nondestructive residual stress measurement, Patent no. 4249423, 1981

Bekir S.Y., Fazal M., Method of modelling residual stresses during laser cutting, Patent no. US 8155933 B2, 2012

Coteață, M., Pop, N., Hurja, I., Slătineanu, L., Hrițuc, A., Beșliu Băncescu, I., Premises of identifying equipment for cutting by electrochemical machining, Nonconventional Technologies Review, 25 4, 2021

Guo, J., Fu, H., Pan, B., Kang, R., Recent progress of residual stress measurement methods: A review, Chinese Journal of Aeronautics, 34, 2, 54-78, 2021

European Steel and Alloy Grades/Numbers SteelNumber, http://www.steelnumber.com /en/steel_composition_eu.php?name_id=96, accessed at 20.10.2022


Refbacks

  • There are currently no refbacks.


JOURNAL INDEXED IN :