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"Study of thickness influence on mechanical properties of carbon/epoxy laminate"

Grant number: 12/22918-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): March 01, 2013
Effective date (End): October 31, 2013
Field of knowledge:Engineering - Aerospace Engineering
Principal researcher:Maria Odila Hilário Cioffi
Grantee:Maria Cândida Magalhães de Faria
Home Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil


ABSTRACTDuring the 20th century the structural composites received special attention of the researchers leading to the very fast technological development of such materials. This way, occurred the preparation of materials with good mechanical properties, mainly concerning high mechanical strength and stiffness. So, the materials usually applied in aeronautical engineering, as steel and aluminium among others, have been substituted by a new class of materials, named composite materials, particularly polymeric matrix reinforced with continuous fibers answering the difficulty in increasing of mechanical strength and toughness in the homogeneous materials. Therefore, because the aircraft are always operating under different environment conditions such as dry and cold air, warm and wet conditions and large cyclical variations of temperature, these conditions have to be taken into consideration in the utilization of the aeronautical materials. However, it is extremely important the evaluation of the resistance of the materials to the intemperate weather to be selected for structural applications, mainly as primary structures. In this context the aim of this work was the evaluation the influence of intemperate weather in the laminates of aeronautical application (epoxy/carbon fiber), submitting these materials to aggressive environment and study the degradation of their mechanical properties by tensile and fatigue.KEY-WORDS: polymeric composites, mechanical properties, intemperie.

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