Abstract

The Journal of Aerospace Technology and Management is a techno-scientific publication serialized, edited, and published by the Institute of Aeronautics and Space (Instituto de Aeronáutica e Espaço-IAE).

Highlights

  • By analyzing history, it is possible to see the importance of material science applied to Aeronautical Engineering and, in that scenario, the composite materials emerged

  • The best example is the latest Boeing aircraft, 787: 50% of its structure is made of composite materials and 20% of aluminum

  • Micromechanical finite element models provide data to obtain the micro-stresses at the matrix/ fiber interface, and great benefits can be reached when a micromechanical approach is considered

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Summary

INTRODUCTION

It is possible to see the importance of material science applied to Aeronautical Engineering and, in that scenario, the composite materials emerged. As this type of material became more recognized, new branches of research came out. One of these branches is the micromechanics, which is the theory that this study focuses on. The best example is the latest Boeing aircraft, 787: 50% of its structure is made of composite materials and 20% of aluminum. The analysis of composite materials follows a macro, meso, or micromechanical approach.

Representative Volume Element
STRESS AMPLIFICATION FACTORS
Epoxy matrix
Loads and boundary conditions
OthOethredr deeggrreeeessofof freefdreoedmomcoconnssttrraainimeded
Convergence analysis
Total DOF
Stress amplification factors for mechanical loads
Stress amplification factors for thermal loads
Finite element model simplifications
Conclusion
Findings
Stress σyy σzz σyz
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