Research Topics In Composite Materials @ ITA - LNCA
Instituto Tecnológico de AeronáuticaResearch Topics inComposite Materials @ ITAProf. Maurício Vicente DonadonInstituto Tecnológico de AeronáuticaDepartment of Aeronautics1
Instituto Tecnológico de AeronáuticaResearch AreasManufacturingProcessesMechanical &PhysicalCharacterizationWind TurbinesSimulation art CompositesRecycling2
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSManufacturing processesRTMRIFT3
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSManufacturing processesCLEAN ROOM ISO 10000RIFT/RTM PROCESSESResin infusion stackingMould filling simulationReturn4
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSMechanical & Physical CharacterizationFracture Toughness CharacterizationIn-plane ply propertiesReturn5
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesIntralaminar failure modesInterlaminar failure (Delamination)Fatigue induced damage10-3ExperimentalNumericalDa/DN (mm/cycle)10-410-510-60.20.30.4G I/G Ic6
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesLife prediction/DurabilityFmaxFFminFmaxFFmin7
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesMicromechanics - Asymptotic HomogenizationFibre Matrix Interface Properties8
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesLV Impact Induced DamageCAI Strength PredictionBird-Strike9
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesBuckling, Postbuckling & Collapse(Fiber-Metal Laminates)ExperimentBallistic Impact DynamicsFE Prediction10
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesBallistic Impact DynamicsReturn11
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesTopological and Parametric Optimization of Stiffened Composite Panels for AeronauticalApplicationsLaminate with N layersm possible orientation angles: 1, 2, , mEach ply k may assume m values for kA laminate is defined by 0 { 10 20 N0} and its lamination parameters 0For another laminate one has { 1A 2A 3D 4D 5A 6A}Objective function f f( ) f (ξ) f (ξ 0 ) sT (ξ ξ 0 ) fs A 1 f 2A f 3D f sT (ξ ξ 0 ) f 4D f 5AT f 6A Maximize f with restricted to lie in the feasible region.Searching all the mN possibilities is not doable12
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesTopological and Parametric Optimization of Stiffened Composite Panels for AeronauticalApplicationsyNy0zzNxy0laminate 2Nx0clampedyw 1.5 mNs0laminate 1Nx0clamped edgel 1mxNs0Nx0hs 0.1 mwb 0.1 m13
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesStructural synthesis for prescribed frequencies and mode shapes The need to advance in algorithms to deal with target mode shapes in the optimization process. This inverse problem is of great interest for the synthesis under aeroelastic constraints or modelupdating algorithms (based on modal test data). Proposed method (without eigenvector derivatives) is under study for the joined wing aircraft.14
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSimulation in CompositesAero acoustic scattering by finite composite platesSound source15
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSNanocompositesCVD reactor @ INPERTM Setup for Nanostructuredcomposite manufacturingCNT growth on the fabric surfaceReturn16
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSSmart CompositesPiezoelectric & Viscoelastic materials applied to naturalfrequencies, buckling load and flutter controlReturn17
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSWind Turbines Development of numerical tools for steady & unsteady aerodynamic/aeroelastic analysesof wind turbines; Blade design optimizationVibrationBucklingProgressive failure18
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSWind Turbines Development & validation of similarity rules for wind tunel testingReturn19
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSExperimental TechniquesPost-buckling due to shear loadingCombined Shear-Bending Post-bucklingPost-buckling/Crippling in compression20
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSExperimental TechniquesDrop test tower – Impact tests21
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSExperimental TechniquesSplit Hopkinson Pressure Bar testing apparatus – Strain rate effects/HVI Incident/transmitted barsdimensions: 2m, Ф1”. Striker : 0,3m , Ф1”. AluminumPulse shaper used; Bar material : Carbon Steel/Aluminum alloy 7075T651 Specimen dimensions ( b x h x L) :15mm x 10mm x 10mm22
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSExperimental TechniquesHVI/Ballistic impact setup – Gas-gun23
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSExperimental TechniquesCAI test rig for plates & shells24
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSExperimental TechniquesAging & Environmental EffectsTemp./Humidity & Thermal Shock ChambersDCB at -54 0CReturn25
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALS-RESEARCH TOPICSComposites RecyclingSchematic diagram of the pyrolysis reactor26
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALSResearch Collaboration Topics1) Topological and Parametric Optimization of Stiffened Composite Panels forAeronautical Applications;2) Co-cured, co-bonded and secondary bonding composite joints;3) Repair of Aeronautical Composite Structures;4) Hygro-Thermo-Mechanical Fatigue of Composite Structures;5) Impact resistance and damage tolerance of aeronautical composite panels;6) Buckling, post-buckling and collapse of composite stiffened panels (static &dynamic (crushing))7) Smart materials applied to aeroelasticity of composite panels (passive/active)8) Progressive failure analysis of composite structures (multi-scale modeling)9) Sustainable recycling processes applied to aeronautical composite structures27
Instituto Tecnológico de AeronáuticaCOMPOSITE MATERIALSResearch Collaboration Topics10) Sandwich structures: Local & Global Buckling; Static & Dynamic Responses; Uncertainties quantification & validation; Fatigue.28
Instituto Tecnológico de AeronáuticaTHANK YOUQuestions?www.lnca.ita.brReturn29
Buckling, Postbuckling & Collapse (Fiber-Metal Laminates) Experiment FE Prediction . Buckling, post-buckling and collapse of composite stiffened panels (static & dynamic (crushing)) 7) Smart materials applied to aeroelasticity of composite panels (passive/active) 8) Progressive failure analysis of composite structures (multi-scale modeling) .
Types of composite: A) Based on curing mechanism: 1- Chemically activated composite 2- Light activated composite B) Based on size of filler particles: 1 - Conventional composite 2- Small particles composite 3-Micro filled composite 4- Hybrid composite 1- Chemically activated, composite resins: This is two - paste system:
78 composite materials Composite materials resources. Composite Materials Resources scouting literature Chemistry, Engineering, Inventing, Model Design and Building, Robotics, and Space Exploration merit badge pamphlets Books Marshall, Andrew C. Composite Basics, 7th ed. Marshall Consulting Publishing, 2005. Rutan, Burt. Moldless Composite
In terms of composite processing: prepreg is the most used technology, followed by liquid resin infusion Composite materials need to compete again with metallic materials for airframe applications that are made of composite in last generation A/C (example: fuselage) A continuous R&D effort is needed to develop innovative composite materials and .
Federal Aviation Administration CE F, General Composite Structure Guidance Background –With the evolving/advancing composite technology and expanding composite applications, AC 20-107 “Composite Aircraft Structure” will require revision Deliverables –Revision to AC 20-107, “Composite Aircraft Structure,” to
Daily Math Practice D Math Buzz 093 Circle prime or composite. 13 prime composite 15 prime composite 22 prime composite 17 prime composite 23 prime composite Multiply. 6 x 728 _ 4 times as many as 397. _ 559 x 9 —–——
Connecting the HDMI to Composite / S-Video Scaler 1. Connect the included HDMI cable from the Hi-Def source to the HDMI connector of the HDMI to Composite / S-Video Scaler. 2. Connect a Composite cable (RCA-type) between the HDMI to Composite / S-Video Scaler and the Composite input on the display or A/V receiver. Optionally connect an
Composite 3 19 57 37. Prime 38. Prime 39. Neither 40. Neither 41. Composite 11 11 121 42. Composite 3 23 69 43. Prime 44. Prime 45. Composite 3 13 39 46. Composite 7 7 49 47. There are two whole numbers that are neither prime nor composite, 0 and 1. 48. False; the square of a
API Structure Over 500 member companies involved in all aspects of the oil and natural gas industry Over 700 committees and task forces covering various advocacy and technical issues Staff of 240 led by board of directors who are the CEO’s of API member companies . API Standards Program All industry segments active in standardization: Exploration and Production Refining Petroleum .
