2026-05-31T04:32:03Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/105042026-02-03T11:27:57Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Martín-Fernández, Francisco de Sales author 2015-10-13 The compression ring test is universally accepted as a perfectly valid method by which determine simply and reliably the adhesion friction factor in a plastic deformation process. Its methodology is based on the application of geometric changes as both the reduction in thickness as the decrease in bore inner diameter in the strained ring itself. In this paper the performance of that test is the basis for establishing the coefficient of friction on a forging process so that, given this, its application to Upper Bound Theorem (UBT) by model Triangular Rigid Zones (TRZ), enable the establishment an intercomparison with empirical force, reaching a cuasivalidation of this Theorem in a certain range. http://hdl.handle.net/10630/10504 http://orcid.org/0000-0002-2500-755X Ciencia de los materiales The ring compression test: Analysis of dimensions and canonical geometry