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    FORD WSS-M99D68-A1-2016 THERMOPLASTIC PROPERTY DETERMINATION FOR CAE HIGH STRAIN RATE TENSILE AND CREEP TO BE USED WITH FORD WSS-M99P1111-A .pdf

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    FORD WSS-M99D68-A1-2016 THERMOPLASTIC PROPERTY DETERMINATION FOR CAE HIGH STRAIN RATE TENSILE AND CREEP TO BE USED WITH FORD WSS-M99P1111-A .pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2016 07 05 Revised See Summary of Revisions L. Soreide, NA 2013 08 05 Released M. Corley, EU L. Soreide, FNA Controlled document at www.MATS Copyright 2016, Ford Global Technologies, LLC Page 1 of 7 THERMOPLASTIC PROPERTY DETERMINATION

    2、 FOR CAE, WSS-M99D68-A1 HIGH STRAIN RATE TENSILE AND CREEP 1. SCOPE This specification defines the requirements for measuring selected material properties used in CAE simulation or equivalent modeling of automotive components made from thermoplastic production materials. 2. APPLICATION This specific

    3、ation 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 automotive components made from the material. 3. REQUIREMENTS 3.1 APPR

    4、OVED 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 prior to testing in a controlled environment of 23 +/- 2 C and 50

    5、 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 SAMPLE PREPARATION Specimen A 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 527-2, Type 1A) Specimen J 80 mm x 15 mm x 2.5 +/- 0.6 mm Test specimens must be milled (high speed milling)

    6、 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 experts. The specimens must not b

    7、e 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 1. ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2016, Ford Global Technologies, LLC Pa

    8、ge 2 of 7 11111250 mm150 mmFilm Gate on short side20mm35mmSample ExtractionArea35mm80mm1111111250 mm150 mmFilm Gate on short side20mm35mmSample ExtractionArea35mm80mm1ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2016, Ford Global Technologies, LLC Page 3 of 7 11111250 mm150 mmFilm Gate

    9、 on short side20mm35mmSample ExtractionArea35mm80mmFigure 1 Test Specimen Extraction Area Definition For fiber reinforced thermoplastics it is important that the plaques show a strong fiber orientation and fiber alignment in the extraction area. Other plaque dimensions and extraction areas must be m

    10、utually 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. 3.3.1 Number of Test Specimens The number of samples will be determined by Ford Materials Engineering, Ford CAE, and the

    11、 material supplier based on the number of optional conditions selected. Supplement A is 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 R

    12、ATE TENSILE TESTING OF POLYMERS Report All Data (SAE J2749, Except Test Specimen Preparation for Specimen J described above, 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 Tes

    13、t Specimen Orientation: 0 As directed Ford Materials Engineering/Ford CAE: 90, 45 or other orientations as mutually agreed upon Required Strain Rates: 0.01/sec, 1/sec, 100/sec As directed Ford Materials Engineering/Ford CAE: 10/sec, 300/sec, or other strain rates as mutually agreed upon Required Tem

    14、perature: 23 C As directed Ford Materials Engineering/Ford CAE: -30 C, 65 C or other temperatures as mutually agreed upon ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2016, Ford Global Technologies, LLC Page 4 of 7 3.4.2 Fiber reinforced material Required Test Specimen Orientation: 0,

    15、90, As directed Ford Materials Engineering/Ford CAE: 45 or other orientations as mutually agreed upon Required Strain Rates: 0.01/sec, 1/sec, 100/sec As directed Ford Materials Engineering/Ford CAE: 10/sec, 300/sec, or other strain rates as mutually agreed upon Required Temperature: 23 C As directed

    16、 Ford Materials Engineering/Ford CAE: -30 C, 65 C or other temperatures as mutually agreed upon The described strain rates are nominal strain rates. The tests can be performed with constant crosshead speed. A specific device allowing the equipment to reach desired crosshead speed (e.g. startup lengt

    17、h, delay block) before loading the specimens must be used. Local strain measurement on the sample should be used. For fiber-reinforced materials or materials that show very low plasticity, low fracture strain (5%) local strain measurement is not mandatory. Provide force-displacement and engineering

    18、stress vs. engineering strain data in digital format (MS Excel). If optical strain measurement is used provide true stress vs. true strain data (optional). The data should not be filtered. 3.5 DETERMINATION OF CREEP BEHAVIOR (ISO 899-1, Specimen A) Required Test Specimen Orientation: 0 As directed F

    19、ord Materials Engineering/Ford CAE: 45, 90 or other orientations as mutually agreed upon Required Stress Levels: 10%, 30%, and 60% of yield stress at each temperature. Other Stress Levels allowed as mutually agreed upon by Ford Materials Engineering/Ford CAE Required Temperature: 23 C As directed Fo

    20、rd Materials Engineering/Ford CAE: -30 C, 65 C, 90 C and 110 C or other temperatures as mutually agreed upon Required Times: 250 hours, 1000 hours Other Times allowed as mutually agreed upon by Ford Materials Engineering/Ford CAE Provide data creep plots (% Strain vs. Time in hours), individual data

    21、 points at each stress level and Isochronous Stress-Strain Plot. ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2016, Ford Global Technologies, LLC Page 5 of 7 Table 1: Minimum Sample Size Para. Test Minimum Lots Specimens per Condition (minimum) Total Test Specimens all Required Conditi

    22、ons (minimum) 3.4.1 High Strain Rate Unfilled 1 5 15 3.4.2 High Strain Rate Fiber Reinforced 1 5 30 3.5 Determination of Creep Behavior 1 2 12 4. GENERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact

    23、for questions concerning Engineering Material Specifications. This specification 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

    24、 only an extraction from a list of suitable test laboratories. Other test laboratories can be chosen as mutually agreed with Ford Materials Engineering and/or Ford CAE experts: Datapoints Labs http:/ 95 Brown Road, Ithaca, NY 14850 Phone: 607-266-0405 Fax: 607-266-0168 Toll-Free (U.S.): 1-888-328-24

    25、22 EDAG GmbH & Co. KGaA ATC FULDA, Jan Frster Steinauerstrae 20 36100 Petersberg Phone.: +49 661 6000-9151 Fax: +49 661 6000 818 Fraunhofer-Institut fr Betriebsfestigkeit und Systemzuverlssigkeit LBF Schlossgartenstr. 6 64289 Darmstadt Germany Phone: +49 6151-705 8751 Fax: +49 6151-705 8601 4.1 SUPP

    26、LIERS 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 such changes affect the materials ability to meet the specification require

    27、ments, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the ENGINEERING MATERIAL SPECIFICATION WSS-M99D68-A1 Copyright 2016, Ford Global Technologies, LLC Page 6 of 7 proposed changes (with reasons) by submission of a com

    28、pleted Suppliers Request for Engineering 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 unti

    29、l Job 1. 4.2 RESTRICTED SUBSTANCE 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

    30、 the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. 5. SUMMARY OF REVISIONS 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

    31、added Figures - 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 2016, Ford Global Technologies, LLC Page 7 o

    32、f 7 Supplement 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/

    33、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: _ Creep Modulus Required Stress Levels: _MPa Required Temperatures: 23 C Optional: 65 C 90 C 110 C Other:_ Times: _ Material Card _ Date_ Materials Engineering Signature _


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