1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 04 2018 07 19 Editorial See Summary of Revisions C. Lewis, NA 2018 07 02 Revised Removed Determination Creep Behavior C. Lewis, NA 2013 08 05 Released M. Corley, EU L. Soreide, FNA Controlled document at www.MATS Copyright 2018, Ford Glo
2、bal Technologies, LLC Page 1 of 6 THERMOPLASTIC PROPERTY DETERMINATION FOR CAE, WSS-M99D68-A1 AND HIGH STRAIN RATE TENSILE 1. SCOPE This specification defines the requirements for measuring selected material properties used in CAE simulation or equivalent modeling of automotive components made from
3、thermoplastic production materials. 2. APPLICATION This specification was released originally to communicate test methods and test parameters for material property data collection to the thermoplastic material suppliers. The data can then be combined with other material property data to model automo
4、tive components made from the material. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification does not use approved sources. Any reliable supplier meeting these requirements may be used. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24 h p
5、rior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 SAMPLE PREPARATION Specimen J 80 mm x 15 mm x 2.5 +/- 0.6 mm (ISO 8256, Type 3; see Figure 1) Test specimens must
6、 be milled (high speed milling) out of injection molded plaques with film gate injection on the short side. Plaque size should be approximately 250 mm x 150 mm x 2.5 mm (+/- 0.6 mm). Other dimensions are possible but must be discussed beforehand with the Ford Materials Engineering and/or Ford CAE ex
7、perts. The specimens must not be taken from the edges or in the film gate area of the plaque to avoid skin effects of the injection molding process. Specimen J test specimens must be extracted from the position described in Figure 2. ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2018, F
8、ord Global Technologies, LLC Page 2 of 6 Figure 1 Specimen J, ISO 8256, Type 3 11111250 mm150 mmFilm Gate on short side20mm35mmSample ExtractionArea35mm80mm11Figure 2 Test Specimen Extraction Area Definition For fiber reinforced thermoplastics it is important that the plaques show a strong fiber ori
9、entation and fiber alignment in the extraction area. Other plaque dimensions and extraction areas must be mutually agreed upon by Ford Materials Engineering and Ford CAE. Injection molding simulations can be used to prove the suitability of other plaque geometries and extraction areas. ENGINEERING M
10、ATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2018, Ford Global Technologies, LLC Page 3 of 6 3.3.1 Number of Test Specimens The number of samples will be determined by Ford Materials Engineering, Ford CAE, and the material supplier based on the number of optional conditions selected. Supplement A i
11、s to be used to communicate the number of optional test parameters included in the material testing. Laboratories capable of running the test methods are listed in the General Information section. 3.4 HIGH STRAIN RATE TENSILE TESTING OF POLYMERS Report All Data (SAE J2749, Except Test Specimen Prepa
12、ration for Specimen J described above, (ISO 8256 Type 3, see Figure 1). Alternative methods are allowed if it can be documented that the results are comparable) Sample orientation to flow direction: 3.4.1 Non-fiber reinforced material Required Test Specimen Orientation: 0 As mutually agreed upon by
13、Ford D&R Engineering, Functional CAE SME and Ford Materials Engineering: 90, 45 or other orientations as mutually agreed upon Required Strain Rates: 0.01/sec, 1/sec, 100/sec As mutually agreed upon by Ford D&R Engineering, Functional CAE SME and Ford Materials Engineering: 10/sec, 300/sec, or other
14、strain rates as mutually agreed upon Required Temperature: 23 C As mutually agreed upon by Ford D&R Engineering, Functional CAE SME and Ford Materials Engineering: -30 C, 65 C or other temperatures as mutually agreed upon 3.4.2 Fiber reinforced material Required Test Specimen Orientation: 0, 90, As
15、mutually agreed upon by Ford D&R Engineering, Functional CAE SME and Ford Materials Engineering: 45 or other orientations as mutually agreed upon Required Strain Rates: 0.01/sec, 1/sec, 100/sec As mutually agreed upon by Ford D&R Engineering, Functional CAE SME and Ford Materials Engineering: 10/sec
16、, 300/sec, or other strain rates as mutually agreed upon Required Temperature: 23 C As mutually agreed upon by Ford D&R Engineering, Functional CAE SME and Ford Materials Engineering: -30 C, 65 C or other temperatures as mutually agreed upon The described strain rates are nominal strain rates. The t
17、ests can be performed with constant crosshead speed. A specific device allowing the equipment to reach desired crosshead speed (e.g. startup length, delay block) before loading the specimens must be used. Local strain measurement on the sample should be used. For fiber-reinforced materials or materi
18、als that show very low plasticity, low fracture strain (5%) local strain measurement is not mandatory. Provide force-displacement and engineering stress vs. engineering strain data in digital format (MS Excel). If optical strain measurement is used provide true stress vs. true strain data (optional)
19、. The data should not be filtered. ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2018, Ford Global Technologies, LLC Page 4 of 6 Table 1: Minimum Sample Size Para. Test Minimum Lots Specimens per Condition (minimum) Total Test Specimens all Required Conditions (minimum) 3.4.1 High Strai
20、n Rate Unfilled 1 5 15 3.4.2 High Strain Rate Fiber Reinforced 1 5 30 4. GENERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. This specif
21、ication is intended to compliment existing Ford Engineering Material Specifications for thermoplastics and the data collected and stored in the Ford Materials Database. Test laboratories with known test capability. This list is only an extraction from a list of suitable test laboratories. Other test
22、 laboratories can be chosen as mutually agreed with Ford Materials Engineering and/or Ford CAE experts: DatapointLabs http:/ 95 Brown Road #102, Ithaca, NY 14850 USA Phone: +1 607-266-0405 Fax: 607-266-0168 Toll-Free (U.S.): 1-888-328-2422 EDAG GmbH & Co. KGaA ATC FULDA, Jan Frster Steinauerstrae 20
23、 36100 Petersberg Germany Phone.: +49 661 6000-9151 Fax: +49 661 6000 818 Fraunhofer-Institut fr Betriebsfestigkeit und Systemzuverlssigkeit LBF Dr. Sebastian Mnnich Schlossgartenstr. 6 64289 Darmstadt Germany Phone: +49 6151-705 8751 Fax: +49 6151-705 8601 ENGINEERING MATERIAL SPECIFICATION WSS-M99
24、D68-A1 Copyright 2018, Ford Global Technologies, LLC Page 5 of 6 4.1 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not su
25、ch changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engin
26、eering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.2 RESTRICTED SUBSTANCE
27、MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to c
28、omply with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS 2018 07 19 - Editorial 3.4.1 and 3.4.2 as to who will direct orientation, rate and temperature. 2018 07 02 - Moved creep behavior testing to a separate specification, WSS-M99D68-A3. 2017 01 17
29、- Editorial - Added back specimen in reference to specimen J size. - Clarified Figures - Clarified test laboratories addressed 2016 07 05 -Removed reference to WSS-M99P1111-A and updated the notes in section 3.1, 3.2, 4.1, 4.2 - Removed reference to specimen K, updated section 3.3 and added Figures
30、- Removed Tensile Modulus -Added allowance of alternative methods in section 3.4, updated wording - Completely updated Creep requirement, section 3.5 -Updated supplement A accordinglyENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2018, Ford Global Technologies, LLC Page 6 of 6 Supplement
31、 A CAE Modeling Data that compliments an existing Resin Specification Material Name _ Supplier Name _ Material Specification _ Testing Laboratory _ Circle optional parameters to make them required. High Strain Rate Tensile Testing of Polymers. Required Strain Rates: 0.01/sec 1/sec 100/sec Optional: 10/sec 300/sec Other_ Required Temperature: 23 C Optional: -30 C 65 C Other:_ Required Orientation Non fiber-reinforced: 0 Fiber reinforced: 0 and 90 Optional: 45 Other: _ Material Card _ Date_ Materials Engineering Signature _
