Marco Gigliotti, Marie-Christine Lafarie-Frenot, Jean-Claude Grandidier, Matteo Minervino

Mechanical Behavior of Organic Matrix Composites (eBook, ePUB)

Effect of Thermo-oxidative Ageing

• Format: ePub

Produktbeschreibung

The book focuses on the effect of ageing (thermo-oxidation, humid ageing) on the mechanical properties of organic matrix composite materials, covering: Bibliographic issues and a detailed state-of-the-art; phenomenological and experimental issues; modelling issues and models parameter identification; illustration and interpretation of experimental tests and proposal for novel test design in the light of the model predictions.

---

Dieser Download kann aus rechtlichen Gründen nur mit Rechnungsadresse in D ausgeliefert werden.

Produktdetails

• Verlag: For Dummies
• Erscheinungstermin: 27. Dezember 2017
• Englisch
• ISBN-13: 9781119388845
• Artikelnr.: 52560587

Autorenporträt

Marco Gigliotti is Full Professor at the University of Poitiers, Pprime Institute, UPR CNRS 3346 in France. His research concerns the ageing, degradation and durability of organic matrix composites for aeronautical applications.

Marie-Christine Lafarie-Frenot is Professor Emeritus at the University of Poitiers in France. Her area of expertise is the mechanical behavior and durability of polymer matrix composites and continuous carbon fibers in aeronautical applications.

Jean-Claude Grandidier is Full Professor at ISAE-ENSMA Poitiers, Pprime Institute, UPR CNRS 3346 in France. His field of expertise is the modeling of multi-physical couplings in polymers and composites, combining experimental and numerical approaches.

Matteo Minervino is a Materials and Process Engineer in the composite materials department of Safran Aircraft Engines. As part of his activity, he studies the mechanical behavior of composite parts subjected to aggressive environments.

Inhaltsangabe

List of Figures ix
Acknowledgements xxi
Preface xxiii
Introduction xxvii
Chapter 1 Phenomenological Aspects of Thermo-oxidative Ageing of OMCs 1
1.1 Effect of thermo-oxidation on the local mechanical behavior of the
polymer 7
1.1.1 Oxidized layers 10
1.1.2 EIT measurements by UMI 14
1.1.3 Introduction to the parameter ¿, an oxidation tracer 19
1.1.4 Characterizing the local mechanical behavior of the polymer 24
1.1.5 Oxidized material 33
1.2 Study of matrix shrinkage induced by thermo-oxidation in unidirectional
OMCs 37
1.2.1 Virgin sample 40
1.2.2 Sample oxidized under 2 bar O2 47
1.2.3 Air-oxidized sample 53
Chapter 2 Modeling of Thermo-oxidative Ageing of OMCs 59
2.1 Thermodynamics of irreversible processes with internal variables 59
2.2 Development of an ageing-dependent behavior law for organic polymers 64
2.3 Taking into account the initial inelastic and chemical strains 77
Chapter 3 Identification and Simulations 79
3.1 Identifying the behavior law of thermo-oxidized polymers through the
inverse analysis of ultra-micro-indentation tests 79
3.1.1 The method to identify the local mechanical behavior of virgin and
oxidized polymers 79
3.1.2 Identification of local mechanical behavior of virgin polymers 83
3.1.3 Identifying the local mechanical behavior of the oxidized polymer 87
3.2 Identification of inelastic strains of chemical origin by inverse
analysis of matrix shrinkage in unidirectional OMCs 93
3.2.1 Method for identifying inelastic strains in virgin and oxidized OMCs
96
3.2.2 Identification of inelastic strains and calculation of stresses in
virgin OMCs 98
3.2.3 Identification of inelastic strains in oxidized OMCs 102
3.2.4 Validating the identification of inelastic strains of chemical origin
105
3.2.5 Numerical simulation of stresses induced by thermo-oxidation in UD
OMCs 108
3.2.6 Rayleigh-Ritz approach for approximate computation of matrix
shrinkage in OMCs 111
Conclusion and Perspectives 119
Bibliography 127
Index 133