May 2000 MAPTIS Presentation 1

SME initiative

Selection List Standard Fields(Header Information)

MTRL Code: 5 digit number assigned to a specific materialPrefix: odd for metals, even for nonmetals

Use Type: Functional or design “use” for material, i.e., adhesive, elastomer etc.

Designation: Manufacturer’s nomencalture for test material

Composition: Generic chemical makeup of material,i.e., epoxy, acrylic, etc.

May 2000 MAPTIS Presentation 2

SME initiative

Selection List Standard Fields(Header Information, Continued)

Generic ID: Three alpha character pairs (6 characters)1st pair: Use Type2nd pair: Primary Composition3rd pair: Minor Composition

Min F (K): Minimum service/operating temperature frommanufacturer’s literature

Max F (K): Maximum service/operating temperature frommanufacturer’s literature

Specification: Designated when material is qualified to a specification, can be multiple specs.

May 2000 MAPTIS Presentation 3

SME initiative

Selection List Standard Fields(Test Data Information)

NHB/Type: Number for specific test per NASA-STD-600101 = Upward Propagation04 = Wire Insulation Flammability06 = Odor

07 = Offgossging13 = Mechanical Impact17 = 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

May 2000 MAPTIS Presentation 4

SME initiative

Selection List Standard Fields(Test Data Information, Continued)

SMP NR Material 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

May 2000 MAPTIS Presentation 5

SME initiative

Selection List Standard Fields(Test Data Information, Continued)

Sample Wgt: Mass of material test specimen

Class code: Material classification code:A = Material identification verifiedC = 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

May 2000 MAPTIS Presentation 6

SME initiative

Selection List Standard Fields(Test Data Information, Continued)

Obsolete/Discontinued: Identifies material that are no longer produced by manufacturer

Manufacturer/Supplier: The manufacturer and/orsupplier of material

Substrate Material: Identification of Material used as a substrate, e.g., aluminum,

fiberglassSUBSTR THK: Thickness of substrate material

Other fields exist that are specific to each test type, i.e., flammability, offgassing, etc.

May 2000 MAPTIS Presentation 7

SME initiative

Selection List Data Base Data Verification

• Material Identification– Assign Material Code

– Verify Manufacturer’s Designation

– Verify Use Type

– Verify Chemical Composition (Generic)

– Minimum/Maximum Service Temperature

– Establish Generic Identification Code

– Specification(s)

May 2000 MAPTIS Presentation 8

SME initiative

Selection List Data Base Data Verification

• Manufacturer Identification– Verify Manufacturer, not Supplier

– Address, Telephone and Facsimile Number

– E-mail Address

• New Test Data Temporarily Held in Preliminary Data Bases– Compare New Test Data with Historical Results

– Research Anomalies in Test Results

– Rating Criteria

May 2000 MAPTIS Presentation 9

SME initiative

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

May 2000 MAPTIS Presentation 10

SME initiative

Nonmetals Properties Data Base

• Current Version– Source – Manufacturer’s Literature – Sparsely Populated– Separate Data Base

• New Version– Source – Manufacturer’s Literature– 10 – 15 Major Properties– Selection List Data Base

• Adhesives – 85% complete• Also Working Lubricants, Coatings, Plastics, Elastomers,

Potting Compounds, Fabric, Tape, Film

May 2000 MAPTIS Presentation 11

SME initiative

Metals Properties Data Base

• Source Material– Mil-HDBK-5– Aerospace Structural Metals Handbook

• Alloys– Aluminum– Steel– Copper– Nickel/Cobalt– Titanium– Magnesium

• Separate Data Base