Dissipative Behaviour of Metallic Materials in Low Stress Cyclic Loading

Francois Maquin; Fabrice Pierron

doi:10.4028/www.scientific.net/AMM.3-4.253

Paper Titles

Simultaneous Measurement of Out-of-Plane and In-Plane Displacements by Phase-Shifting Digital Holographic Interferometry
p.223

Complete Two-Dimensional Principal Stress Separation by the Photoelastic Oblique Incidence Method
p.229

Measurement of Stokes Parameters by Quarter-Wave Plate and Polarizer
p.235

Semi Empirical Stress Analysis of a Brittle Material in a Vicinity of a Stress Concentrator
p.243

Dissipative Behaviour of Metallic Materials in Low Stress Cyclic Loading
p.253

An Experimental and Finite Element Study of the Ductile Tearing Characteristics of High-Toughness Gas Pipeline Steel
p.259

Design of a Multi-Axial Test Specimen for Fretting Fatigue in Splined Couplings
p.267

Predicting the Crack Growth Behavior in a Filled Elastomer
p.273

Interaction Effects of Stress Intensity Factors in Parallel Cracks under Transitional Thermal-Loads
p.279

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 3-4Dissipative Behaviour of Metallic Materials in Low...

Dissipative Behaviour of Metallic Materials in Low Stress Cyclic Loading

Abstract:

In order to fully understand the thermomechanical phenomena involved in high-cycle fatigue, a method for determining the dissipative thermal sources in a loaded metallic specimen from the spatio-temporal integration of the heat diffusion equation is proposed. Temperature fields obtained through a focal array infra-red camera are processed with this technique. After a refined analysis of the sensitivity of the method, preliminary tests have shown that it is possible to detect a burst of heat sources within the first couple of cycles for the specimen tested above a certain level of tensile stress. This behaviour is thought to be related to the microplasticity level.

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Periodical:

Applied Mechanics and Materials (Volumes 3-4)

Pages:

253-258

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.3-4.253

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Cite this paper

Online since:

August 2006

Authors:

Francois Maquin, Fabrice Pierron

Keywords:

Cyclic Loading, Heat Dissipation, Infrared Thermography (IRT), Microplasticity

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