caa a22 4500 606167234 CHVBK 20210128100701.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10665-014-9720-7 doi (NATIONALLICENCE)springer-10.1007/s10665-014-9720-7 Fiber orientation effects on heat source distribution in reinforced polyamide 6.6 subjected to low cycle fatigue [Elektronische Daten] [Adil Benaarbia, André Chrysochoos, Gilles Robert] The present study was aimed at gaining further insight into the behavior of short fiber-reinforced semicrystalline-polymeric (SFRSP) composites conditioned at atmospheric pressure with air containing 50% relative humidity and subjected to repetitive loadings. The experimental approach was based on synchronized full-field temperature and strain data to investigate and characterize the thermomechanical response of these heterogeneous materials throughout tensile-tensile oligocyclic loading tests. The overarching aim was to determine the thermomechanical constitutive properties of SFRSP composites over a range of fiber orientation angles, for example, $$0^{\circ }$$ 0 ∘ , $$45^{\circ }$$ 45 ∘ , and $$90^{\circ }$$ 90 ∘ . The thermomechanical behavior of a dry polyamide6.6 matrix was also analyzed in a previous study using the same experimental approach. This approach involved digital image correlation (DIC) and infrared thermography (IRT). The first was used to track random surface pattern movements to monitor displacement or deformation, while the second recorded in-plane temperature changes from which the amount of heat sources involved during the material deformation was derived. Noticeable in-plane heterogeneities and the effects of fiber orientation on heat-source patterns, for example, intrinsic dissipation and thermoelasticity ranges, were highlighted and examined using these imaging techniques. The energy content of hysteresis loops was identified, and no elastic or plastic shakedown was noted, so there was no real cyclic adaptation. The heat conversion factor, i.e., Taylor-Quinney coefficient, was also calculated to quantify the relative contribution of stored and dissipated energies in the energy balances of the SFRSP composites. Springer Science+Business Media Dordrecht, 2014 Digital image correlation nationallicence Dissipated energy rate nationallicence Fiber orientation angle effect nationallicence Infrared thermography nationallicence Taylor-Quinney ratio nationallicence Thermoelasticity nationallicence Short fiber-reinforced semicrystalline-polymeric composites nationallicence Benaarbia Adil University Montpellier 2, LMGC Laboratory, CNRS, Place Eugène Bataillon, 34095, Montpellier, France aut Chrysochoos André University Montpellier 2, LMGC Laboratory, CNRS, Place Eugène Bataillon, 34095, Montpellier, France aut Robert Gilles Solvay Engineering Plastics, Technyl Innovation Center-Simulation et Validation des Applications, Avenue Ramboz, BP 64, 69192, Saint Fons, France aut Journal of Engineering Mathematics Springer Netherlands 90/1(2015-02-01), 13-36 0022-0833 90:1<13 2015 90 10665 https://doi.org/10.1007/s10665-014-9720-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10665-014-9720-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Benaarbia Adil University Montpellier 2, LMGC Laboratory, CNRS, Place Eugène Bataillon, 34095, Montpellier, France aut NATIONALLICENCE 700 1- Chrysochoos André University Montpellier 2, LMGC Laboratory, CNRS, Place Eugène Bataillon, 34095, Montpellier, France aut NATIONALLICENCE 700 1- Robert Gilles Solvay Engineering Plastics, Technyl Innovation Center-Simulation et Validation des Applications, Avenue Ramboz, BP 64, 69192, Saint Fons, France aut NATIONALLICENCE 773 0- Journal of Engineering Mathematics Springer Netherlands 90/1(2015-02-01), 13-36 0022-0833 90:1<13 2015 90 10665