The generalized local model (GLM): Justification, theoretical derivation and case applications

18.7.2018

Seminar Fraunhofer IWM, 18. July 2018, Seminarraum des Fraunhofer-Instituts für Werkstoffmechanik IWM in Freiburg, Dr. Miguel Muñiz Calvente, University of Oviedo

Details: 

 

Was:                        Seminar Fraunhofer IWM: The generalized local model (GLM): Justification, theoretical derivation and case applications

Wann                      18. Juli 2018, 11:15 Uhr

Wo:                         Seminarraum W9a des Fraunhofer Instituts für Werkstoffmechanik IWM in Freiburg

Vortragender:        Dr. Miguel Muñiz Calvente, University of Oviedo

The Generalized Local Model (GLM) represents a novel methodology that ensures transferability from the lab experimental results to the component design irrespective of the test, specimen shape and size used. Once the reference or generalized parameter (GP) is defined, the GLM provides the experimental cumulative distribution function of failure (EFCDF) for the sample tested, from which the primary cumulative distribution function of failure (PFCDF) is derived. The latter is identified as a characteristic property of the material under study to be applied for failure prediction of components made of such material under general loading and shape conditions. Furthermore, the GLM allows a possible selection of the generalized parameter (GP) to be made as a result of its suitability assessment provided that complementary tests are carried out.

The application of the model is illustrated by practical examples, which confirm the efficiency of the approach to solve typical questions arising during the evaluation of experimental programs, such as: influence of scale effect, joint evaluation of experimental data from different test programs; confounded data case, fatigue lifetime analysis and others.