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WITHDRAWN ASTM D5379/D5379M-12 15.7.2012 preview

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ASTM D5379/D5379M-12

Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method

STANDARD published on 15.7.2012

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The information about the standard:

Designation standards: ASTM D5379/D5379M-12
Note: WITHDRAWN
Publication date standards: 15.7.2012
SKU: NS-30948
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Laminated sheets

Annotation of standard text ASTM D5379/D5379M-12 :

Keywords:

composite materials, in-plane shear, interlaminar shear, shear modulus, shear properties, shear strength, shear testing, ICS Number Code 83.140.20 (Laminated sheets)

Additional information

Significance and Use

5.1 This test method is designed to produce shear property data for material specifications, research and development, quality assurance, and structural design and analysis. Either in-plane or interlaminar shear properties may be evaluated, depending upon the orientation of the material coordinate system relative to the loading axis. Factors that influence the shear response and should therefore be reported include the following: material, methods of material preparation and lay-up, specimen stacking sequence, specimen preparation, specimen conditioning, environment of testing, specimen alignment and gripping, speed of testing, time at temperature, void content, and volume percent reinforcement.

5.2 In anisotropic materials, properties may be obtained in any of the six possible shear planes by orienting the testing plane of the specimen with the desired material plane (1-2 or 2-1, 1-3 or 5.2.1 Shear stress/strain response,

5.2.2 Ultimate strength,

5.2.3 Ultimate strain, and

5.2.4 Shear chord modulus of elasticity.

1. Scope

1.1 This test method covers the shear properties of composite materials reinforced by high-modulus fibers. The composite materials are limited to continuous-fiber or discontinuous-fiber-reinforced composites in the following material forms:

1.1.1 Laminates composed only of unidirectional fibrous laminae, with the fiber direction oriented either parallel or perpendicular to the loading axis.

1.1.2 Laminates composed only of woven fabric filamentary laminae with the warp direction oriented either parallel or perpendicular to the loading axis.

1.1.3 Laminates composed only of unidirectional fibrous laminae, containing equal numbers of plies oriented at 0 and 90° in a balanced and symmetric stacking sequence, with the 0° direction oriented either parallel or perpendicular to the loading axis.

1.1.4 Short-fiber-reinforced composites with a majority of the fibers being randomly distributed.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

D3878-23	Standard Terminology for Composite Materials
E177-20	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
D792-20	Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
E122-17(2022)	Standard Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
E111-17	Standard Test Method for Young´s Modulus, Tangent Modulus, and Chord Modulus
E6-23a	Standard Terminology Relating to Methods of Mechanical Testing (Includes all amendments and changes 3/29/2023).
D883-24	Standard Terminology Relating to Plastics
D2584-18	Standard Test Method for Ignition Loss of Cured Reinforced Resins
D2734-23	Standard Test Methods for Void Content of Reinforced Plastics
D3171-22	Standard Test Methods for Constituent Content of Composite Materials
E4-21	Standard Practices for Force Calibration and Verification of Testing Machines
	V-Notched Beam Shear Fixture Machining Drawings Available from ASTM International Headquarters. Order Adjunct No. .
ANSI/ASME B 46.1-1985	Surface Texture (Surface Roughness, Waviness, and Lay)
E1237-20	Standard Guide for Installing Bonded Resistance Strain Gages
E456-13a(2022)	Standard Terminology Relating to Quality and Statistics (Includes all amendments and changes 4/21/2022).
E251-20a	Standard Test Methods for Performance Characteristics of Metallic Bonded Resistance Strain Gages (Includes all amendments and changes 8/7/2020).
D5229/D5229M-20	Standard Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials

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