Presentation on theme: "SME initiative May 2000MAPTIS Presentation52 Selection List Standard Fields (Header Information) MTRL Code: 5 digit number assigned to a specific material."— Presentation transcript:
SME initiative May 2000MAPTIS Presentation52 Selection List Standard Fields (Header Information) MTRL Code: 5 digit number assigned to a specific material Prefix: odd for metals, even for nonmetals Use Type:Functional or design use for material, i.e., adhesive, elastomer etc. Designation:Manufacturers nomencalture for test material Composition:Generic chemical makeup of material, i.e., epoxy, acrylic, etc.
SME initiative May 2000MAPTIS Presentation53 Selection List Standard Fields (Header Information, Continued) Generic ID:Three alpha character pairs (6 characters) 1st pair: Use Type 2nd pair: Primary Composition 3rd pair: Minor Composition Min F (K):Minimum service/operating temperature from manufacturers literature Max F (K):Maximum service/operating temperature from manufacturers literature Specification:Designated when material is qualified to a specification, can be multiple specs.
SME initiative May 2000MAPTIS Presentation54 Selection List Standard Fields (Test Data Information) NHB/Type:Number for specific test per NASA-STD = Upward Propagation 04 = Wire Insulation Flammability 06 = Odor 07 = Offgossging 13 = Mechanical Impact 17 = Promoted Combustion, etc. Test NR:Distinct number assigned to each test series - Prefix identifies test facility, e.g.M = MSFC, W = WSTF Cure NR:Number that correlates with cure sequence in cure table
SME initiative May 2000MAPTIS Presentation55 Selection List Standard Fields (Test Data Information, Continued) SMP NRMaterial Sample or specimen Number - 09 represents worst case record R:Rating assigned to each specific material test PCT OXY:Percent of oxygen in test chamber TEMP:Test temperature PRESS:Pressure in test chamber THK:Thickness of material test specimen Width:Width of test material sample Length:Length of test material sample
SME initiative May 2000MAPTIS Presentation56 Selection List Standard Fields (Test Data Information, Continued) Sample Wgt:Mass of material test specimen Class code:Material classification code: A = Material identification verified C = Material identification not verified Description:D = Descriptive information about material specimen Remark:R = Remark about test or configuration of specimen Temp:Temperature in test chamber
SME initiative May 2000MAPTIS Presentation57 Selection List Standard Fields (Test Data Information, Continued) Obsolete/Discontinued:Identifies material that are no longer produced by manufacturer Manufacturer/Supplier:The manufacturer and/or supplier of material Substrate Material:Identification of Material used as a substrate, e.g., aluminum, fiberglass SUBSTR THK:Thickness of substrate material Other fields exist that are specific to each test type, i.e., flammability, offgassing, etc.
SME initiative May 2000MAPTIS Presentation58 Selection List Data Base Data Verification Material Identification –Assign Material Code –Verify Manufacturers Designation –Verify Use Type –Verify Chemical Composition (Generic) –Minimum/Maximum Service Temperature –Establish Generic Identification Code –Specification(s)
SME initiative May 2000MAPTIS Presentation59 Selection List Data Base Data Verification Manufacturer Identification –Verify Manufacturer, not Supplier –Address, Telephone and Facsimile Number – Address New Test Data Temporarily Held in Preliminary Data Bases –Compare New Test Data with Historical Results –Research Anomalies in Test Results –Rating Criteria
SME initiative May 2000MAPTIS Presentation60 Selection List Data Base – Data Verification Initial Data Review –Analyst Level –Engineer/Analyst Level Final Review –NASA/NAS/CSC Team –Data Evaluated Data Consistency Verified Anomalies Resolved Decision Made to Move Data to Selection List or to Hold
SME initiative May 2000MAPTIS Presentation61 Nonmetals Properties Data Base Current Version –Source – Manufacturers Literature –Sparsely Populated –Separate Data Base New Version –Source – Manufacturers Literature –10 – 15 Major Properties –Selection List Data Base Adhesives – 85% complete Also Working Lubricants, Coatings, Plastics, Elastomers, Potting Compounds, Fabric, Tape, Film
SME initiative May 2000MAPTIS Presentation62 Metals Properties Data Base Source Material –Mil-HDBK-5 –Aerospace Structural Metals Handbook Alloys –Aluminum –Steel –Copper –Nickel/Cobalt –Titanium –Magnesium Separate Data Base