{"id":1748,"date":"2016-10-31T13:45:23","date_gmt":"2016-10-31T13:45:23","guid":{"rendered":"https:\/\/asidiconference.org\/?page_id=1748"},"modified":"2016-10-31T13:45:23","modified_gmt":"2016-10-31T13:45:23","slug":"asidic-2012-workshops","status":"publish","type":"page","link":"https:\/\/asidiconference.org\/?page_id=1748","title":{"rendered":"ASIDIC 2012: WORKSHOPS"},"content":{"rendered":"

<\/em><\/p>\n

Day 3 – NOVEMBER 8th 2012
\n| National CENTER FOR AVIATION TRAINING |<\/h2>\n

Workshop 1 \u2013 Crashworthiness of Aircraft <\/span>
\nStructures: Computational Methods to <\/span>
\nSupport Design and Certification<\/span><\/h2>\n
<\/span><\/h5><\/div>\n

Overview<\/strong>
\nThe workshop presented by leading international experts will give an overview of the current state of the art in design, analysis and test of crashworthy aircraft structures. It will present a methodology based on the test\/simulation pyramid adopted for aircraft structures in which test and analysis methods for crashworthy structures are developed and validated at levels ranging from materials test specimens through structural elements up to full scale aircraft. The focus is on application of dynamic nonlinear explicit FE codes for metallic and composite materials at different structural levels. Special attention is given to advanced composite materials having high specific energy absorption where design rules are still under development.<\/p>\n

<\/span><\/h5><\/div>\n

PROGRAM<\/strong><\/span><\/p>\n

8:00<\/strong> Introduction to the Workshop \u2013<\/em>
\nGerardo Olivares (NIAR)<\/p>\n

8:10<\/strong> Session 1:
\nCrashworthiness and Certification Requirements<\/em><\/p>\n

FAA\/EASA current and future requirements \u2013
\nJoseph Pellettiere (FAA); Wim Doeland (EASA)<\/p>\n

9:00<\/strong> Session 2:
\nExperimental and Numerical Methods:
\nCrash Energy Absorption in Structural Elements<\/p>\n

Speakers: Alastair Johnson (DLR); Juan Acosta, Suresh Raju
\nKeshavanarayana (NIAR\/WSU); Mike Pereira, Amos Gilat (NASA)<\/p>\n

\u2022 Experimental methods: material characterization
\ncoupon to component level (NIAR)
\n\u2022 Advanced deformation and failure models for impact
\nin metals (NASA)
\n\u2022 Materials damage and delamination failure models
\nin composites (DLR)
\n\u2022 Validation of advanced models for structural elements (All)<\/p>\n

10:45<\/strong> Coffee and Tea Break<\/p>\n

11:00<\/strong> Session3:
\nDesign and FE Simulation of EA
\nComposite Subfloor Structure<\/p>\n

Speakers: Rodney Thomson (ACS-A); Matthew David (DLR)<\/p>\n

\u2022 Design concept for EA helicopter frame in composites
\n\u2022 Fabrication and crash test of demonstrator structures
\n\u2022 FE simulation of crash tests to validate methodology<\/p>\n

12:15 – 1:15<\/strong> Lunch Break<\/p>\n

1:15<\/strong> Session 4:
\nProgress on Development of Full
\nAircraft FE Crash Models<\/p>\n

Speakers: Allan Abramowitz (FAA); Gerardo Olivares (NIAR)<\/p>\n

\u2022 Full Scale Testing Programs Overview \u2013 Allan Abramowitz (FAA)
\n\u2022 Full-scale FE airframe models: State of the art and analytical
\nmodel limitations
\n\u2022 Enhanced FE models with cabin, seats, PAX, etc.
\n\u2022 FE models suitable for accident reconstruction<\/p>\n

2:30<\/strong> Coffee and Tea Break<\/p>\n

2:45<\/strong> Session 5:
\nLessons Learned<\/p>\n

\u2022 Airbus A380 Double Deck Simulation \u2013 Alan Melling (Airbus)
\n\u2022 Use of Non-Linear Analysis for Crashworthiness Certification \u2013
\nMostafa Rassaian (The Boeing Company)
\n\u2022 Composite Airframe Crashworthiness Research at NASA
\nLangley Research Center – Karen Jackson (NASA)<\/p>\n

4:00<\/strong> Session 6:
\nOpen Forum Discussion<\/p>\n

Gerardo Olivares (NIAR); Mostafa Rassaian (The Boeing Company)<\/p>\n

\u2022 Q&A \u2013 Industry Panel<\/p>\n

Day 4 – NOVEMBER 9th 2012
\n| National INSTITUTE FOR AVIATION RESEARCH |<\/h2>\n

Workshop 2 \u2013 Aircraft Seat Dynamic Performance Standards: Testing and Analysis<\/span><\/h2>\n
<\/span><\/h5><\/div>\n

Overview<\/strong>
\nThis workshop will present the history and background behind the seat dynamic performance standards contained in Part 23\/25\/27\/29.562. This will include the basis for the regulation, followed by a quick introduction to Anthropometric Test Devices, instrumentation and photometric analysis as contained in SAE J211. Attendees will also be exposed to a demonstration sled test detailing how a test is setup including dummy positioning. After the hands on portion, attendees will then lean how analysis can be included in the certification process by reviewing current recommended practice and guidance material with particular attention paid to model validation.<\/p>\n

<\/span><\/h5><\/div>\n

PROGRAM<\/strong><\/p>\n

8:00 – 10:00<\/strong> Session 1:
\nAircraft Seat Dynamic Performance Standards\u2013 Joseph Pellettiere (FAA)
\n\u2022 History and basis for the regulation
\n\u2022 ATD and Injury criteria review
\n\u2022 Photometric review
\n\u2022 Instrumentation review
\n10:00 – 10:15<\/strong> Coffee and Tea Break<\/p>\n

10:15 – 12:00<\/strong> Session 2:
\nCertification by Analysis \u2013
\nJoseph Pellettiere (FAA);
\nGerardo Olivares (NIAR)<\/p>\n

\u2022 AC20-146
\n\u2022 CBA Seat Modelling Techniques<\/p>\n

12:00 – 1:30<\/strong> Lunch Break
\n1:30 – 5:00<\/strong> Session 3:
\nExperimental and Analytical Methods
\nTest Demonstration at NIAR
\nCrash Dynamics Laboratory – Robert Huculak (NIAR)<\/p>\n

\u2022 Part 25.562 test demonstration
\n\u2022 Review ATD positioning
\n\u2022 Pre and Post Test Data Collection Protocols
\nto Support CBA Activities
\n\u2022 Floor warping
\n\u2022 Review test results
\nAnalytical Model Demonstration<\/p>\n

\u2022 Example Analysis Sled Test \u2013
\nVikas Yadav, Nilesh Dole, Luis Gomez (NIAR)<\/p>\n

\u2022 ATD Positioning
\n\u2022 Numerical Seat Model Definition
\n\u2022 Overview Component Level :
\n\u2022 Cushion
\n\u2022 Seat Belt Webbing
\n\u2022 Analysis
\n\u2022 Error Metrics Evaluation<\/p>\n","protected":false},"excerpt":{"rendered":"

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