Course Development: Maintenance Of Composite Aircraft .
Course Development:Maintenance of CompositeAircraft StructuresPresenter: Larry IlcewiczThe Joint Advanced Materials and Structures Center of Excellence
Course Development: Maintenanceof Composite Aircraft Structures Motivation and Key Issues– A dramatic increase in composite content in new aircraft developmentmandates additional knowledge in composite maintenance and repairfor inspectors, technicians and engineers– Practitioners must have an appreciation of the major issues surroundingcomposite materials maintenance, in preparation for further study;course should be available for worldwide learning Objective– Students to be aware of the important issues surrounding composites'maintenance and repair– Grant to provide terminal course objectives (TCOs) for industry to‘standardize’ introductory survey courses Approach– Web-based training, supplemented by regional ‘hands-on’ labs– Extensive industry involvement, including in-person workshops andteleconferencing.The Joint Advanced Materials and Structures Center of Excellence2
FAA Sponsored ProjectInformation Principal Investigators & Researchers––––––– Charlie Seaton, Principal Investigator (Edmonds Community College)Peter Smith, Documentation & organization (Consultant)Dennis Vincent, Tech Support (Edmonds CC)Laura St. John, Distance Learning (Edmonds CC)Joe Hafenrichter (Boeing Phantom Works)Chad Robson (Navy Cherry Point Composites)Keith Armstrong, prerequisite course (Consultant)FAA Technical Monitors– Peter Shyprykevich– Larry Ilcewicz Other FAA Personnel Involved– Curt Davies– Peter Shyprykevich Industry Participation– Boeing (Al Miller, Joe Hafenrichter)– Heatcon (Eric Casterline)– Subject Matter Experts (Peter Smith, Keith Armstrong)The Joint Advanced Materials and Structures Center of Excellence3
Discussion Points Curriculum Development Process Change in Scope of Work as a result offeedback from expert participants Key components of course Storyboard examples Challenges Timeline Summary Look ForwardThe Joint Advanced Materials and Structures Center of Excellence4
Curriculum Development Concept: Incorporate latest teaching methods––––Survey course, intended to provide platform for advanced studyEdmonds CC will offer as combination web-based laboratory5 day course equivalent, 3 college credits, 50% hands-on laboratoryAudience: Engineers, Technicians, Inspectors Workshops– FAA/NRC Workshop in Washington DC (May 18 & 19, 2004)Executive review of systematic, repair, NDI & training issues– FAA/Industry/Academia Workshop in Seattle, WA(November/December 2004) Establish course framework by identifyingterminal course objectives– FAA Workshop (tentatively in Chicago in Sept 2005)The Joint Advanced Materials and Structures Center of Excellence5
Curriculum Development Process November/December 2004 Workshop– 60 expert participants, representing industry, government,academia– Identified 450 skills for engineers, technicians, inspectors– Consolidated skills under 11 categories (terminal courseobjectives, or TCOs)» Quantity of TCOs required addition of prerequisite course Feedback– Workshop report posted on AMTAS web-site for review: Jan 05– Workshop attendees invited to evaluate progress and providesuggestions via video conference: April 28, 2005– August/September 2005: Prototype class (or equivalent) forfine-tuningThe Joint Advanced Materials and Structures Center of Excellence6
Key Components: TerminalCourse Objectives (TCOs) Prerequisite Course (content only)TCO [A] Understand basics of composite materials technologyTCO [B] Understand the basics of composite materials maintenance and repairTCO [J] Understand other critical elements of composite maintenance andrepair Composite Repair & Maintenance Course (content and laboratory)TCO [C] Understand Roles & ResponsibilitiesTCO [D] Recognize composite damage types & sourcesTCO [E] Identify & describe information contained in documentationsTCO [F] Describe composite laminate fabrication & bonded repair methodsTCO [G] Perform a bonded composite repairTCO [H] Describe composite damage &repair inspection proceduresTCO [I] Describe Composite laminate bolted assembly & repair methodsThe Joint Advanced Materials and Structures Center of Excellence9
Key Components Definition of terminal course objectives (TCOs)– Public domain Content Format– Traditional classroom (Prototype class or equivalent; possiblefollow-on)– Distance/web-based learning– Safety messages & testimonials in addition to contentdiscussion (public domain) Laboratory– Initially conducted at Edmonds CC– Follow-on concept: Regional laboratories (equipment and bill ofmaterials to be public domain)The Joint Advanced Materials and Structures Center of Excellence10
TuesdayMorning8:00 to 9:50Intro to Composite Maintenance & Repair TimelinePrimary Mode[s]:LectureSupplemental Mode[s]:P. Pt PresentationTestimonial fromPractitionerTopics: TCO [E] Identify & describe information containedin documentationsE1: Describe requirements in material & processspecifications and structural repair manualsE2: Demonstrate use of source documentsE3: Identify & demonstrate use of regulatory documentsE4: Understand the requirements and engineeringapprovals necessary for valid sources of technicalinformation & maintenance instructionsFight Safety Message #3Total Time: 1hr 50minMorning9:10 to 10:10Morning10:10 to 12:00IntermissionPrimary Mode[s]:LectureSupplemental Mode[s]:P. Pt PresentationVideoTestimonial fromPractitionerTotal Time: 20 minTopics: TCO [F] Describe composite laminate fabrication &bonded repair methodsF1: Understand the basics of composite laminatefabricationF2: Understand the basics of composite bonded repairF3: Describe the detailed processing steps necessaryfor laminate fabrication [factory], bonded repair[field], and Material Review Board (OEM)F4: Describe key characteristics and processingparameters for laminate fabricationF5: Identify typical processing defects which occur incomposite laminate fabrication & bonded repair.Fight Safety Message #4Total Time: 1hr 50minAfternoonLunchTotal Time: 1 hr12:00 to 1:00 The Joint Advanced Materials and Structures Center of Excellence11
ThursdayAfternoon1:00 to 2:50Intro to Composite Maintenance & Repair TimelinePrimary Mode[s]:Topics: TCO[I]: Describe Composite laminate boltedassembly & repair methodsLectureLabSupplemental Mode[s]:I3: Demonstrate composite drilling versus metal drillingI4: Describe process parameters which affect boltedrepair quality & in-process controls necessary to avoiddefectsTechnicianStudent ParticipateP. Pt PresentationTotal Time: 1hr 50minIntermissionTotal Time: 20 minAfternoon2:50 to 3:10Afternoon3:10 to 5:00Primary Mode[s]:LabSupplemental Mode[s]:TechnicianStudent ParticipateTopics: TCO[I] cont’d [LAB#5]: Perform bolted repairs ofdamaged thick laminatesI5: Demonstrate & apply common damage removal,drilling & fastening techniques used for bolted repair &how to inspect them for acceptabilityI6: Verify correct fastener selection, inspect drilled holes,& check if fasteners were properly installed duringbolted repair lab trialsTestimonial fromPractitionerTotal Time: 1hr 50minFight Safety Message #8The Joint Advanced Materials and Structures Center of Excellence12
Challenges Videos of composite repair practiceTestimonials (1 to 2 minutes)Continued involvement by expertsIncorporation of non-proprietary structuralrepair manuals into courseThe Joint Advanced Materials and Structures Center of Excellence13
Composites Maintenance & RepairCurriculum AugSepDefine Terminal Course Objectives(TCOs)* 3 day Workshop* Refine/Integrate into 5 day courseDefine Course Subject Material* Story Board Development* Content/Theory* LaboratoryLaboratory Equipment* Definition* Equipment acquisition andinstallationFeedback* Web Based posting* Video Teleconferencing* CACRC (Bremen, Germany)* Prototype class or equivalent* Workshop (Chicago)Course DeliveryThe Joint Advanced Materials and Structures Center of Excellence14
A Look ForwardBenefits to the Aviation Industry The curriculum under development addresses the global community and is moregeneric, whereas Technical Training Providers (TTPs) are better equipped to addressspecific customer and operator needs, including proprietary information.–Curriculum has a different focus than (TTP's)such as Abaris and Alteon. –Curriculum is not intended to produce repair technicians, but prepares students for further(TTP) training by making them aware of the important issues surrounding composites'maintenance and repair. Focus of Course: awareness of repair issues from industry-based lessons learnedFocus of TTP's: vocational training & skills developmentFor example, purchasing agents would gain considerable benefit from the survey curriculum.As a web-based formatted course, the curriculum can be utilized by the TTP's andtaught at their facilities.–Added benefit: the amount of training at TTPs may be complemented resulting in increasedenrollment.Future needs Future activities will expand into specialty areas and standardize compositemaintenance trainingThe Joint Advanced Materials and Structures Center of Excellence15
The Joint Advanced Materials and Structures Center of Excellence 2 Course Development: Maintenance of Composite Aircraft Structures Motivation and Key Issues – A dramatic increase in composite content in new aircraft development mandates additional knowledge in composite maintenance and repair for inspectors, technicians and engineers
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:
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
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
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(P 0.05). The packable composite -with or without fluid composite- showed lower microleakage, whereas microhybrid and fiber-reinforced composites without fluid composite, showed higher mi-croleakage. Discussion: The fluid composite significantly decreased the microleakage at gingival margins of Class II composite restorations.
Auditing and Assurance Services, 14e (Arens) Chapter 10 Section 404 Audits of Internal Control and Control Risk Learning Objective 10-1 1) Which of the following is not one of the three primary objectives of effective internal control? A) reliability of financial reporting B) efficiency and effectiveness of operations C) compliance with laws and regulations D) assurance of elimination of .
