Identifying mechanical characteristics of materials with non-linear behavior using statistical methods

Authors:
Gilbert-Rainer Gillich;Polidor Bratu;Doina Frunzaverde;Daniel Amariei;Vasile Iancu
Affiliations:
Department for Machine dynamics & Vibrations, "Eftimie Murgu" University of Resita, Resita, Romania;Research Institute for Construction Equipment and Technology, Bucuresti, Romania;Center for Research in Hydraulics, Automation and Thermal Processes, "Eftimie Murgu" University of Resita, Resita, Romania;Center of Advanced Research, Design and Technology, "Eftimie Murgu" University of Resita, Resita, Romania;Center of Advanced Research, Design and Technology, "Eftimie Murgu" University of Resita, Resita, Romania
Venue:
CEA'10 Proceedings of the 4th WSEAS international conference on Computer engineering and applications
Year:
2010

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Abstract

Rubber and similar materials are often used as vibration insulators for technical systems. Their behavior is linear until a deformation of maximum 15% appears; crossing over this limit, the behavior becomes non-linear, meaning that the dynamic rigidity and implicitly the modulus of elasticity change its value as long as the element is stressed over this level under dynamic regime. The authors have developed one equipment and adequate methods to find out these parameters by statistical processing of data experimentally obtained with this equipment.