Eur. Phys. J. Special Topics 153, 383-386 (2008)
https://doi.org/10.1140/epjst/e2008-00467-7

Propagation of thermal waves in multilayered cylinders using the thermal quadrupole method

¹ Departamento de Física Aplicada I, Escuela Técnica Superior de Ingeniería, Alameda Urquijo s/n, 48013 Bilbao, Spain
² Departamento de Matemática Aplicada, Universidad de Zaragoza, Campus Río Ebro, Edificio Torres Quevedo, 50018 Zaragoza, Spain

Abstract

In this work the surface temperature oscillation of multilayered cylindrical samples which are uniformly heated by a modulated light beam is calculated using the thermal quadrupole method. This temperature is compared with that calculated in cylinders with continuously varying in-depth thermal conductivity. Following this theoretical approach, photothermal techniques can be used for the quantitative thermophysical characterization of hardened steel wires, tubes and nails.