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ASTM D3846-02

(Test Method)

Standard Test Method for In-Plane Shear Strength of Reinforced Plastics

Standard Test Method for In-Plane Shear Strength of Reinforced Plastics

SIGNIFICANCE AND USE
Shear tests of various kinds are widely used in the reinforced plastics industry to assess the strength of the reinforcement-to-resin bond in polyester-, vinyl ester-, and epoxy-resin composites. In addition to their importance for the generation of data for research and development, quality control, and specification purposes, such tests are of fundamental value to the fibrous reinforcement industry, since they can be used to assess the potential of new sizing systems for the surface treatment of glass fibers.
This test method is useful for establishing the shear strength of laminates or other reinforced plastics having randomly dispersed fiber reinforcement. While the test also lends itself to parallel-fiber reinforced plastics, it has been designed to accommodate nonparallel-fiber reinforced materials that cannot be tested satisfactorily by the short-beam procedure described in Test Method D 2344.
SCOPE
1.1 This test method covers the determination of the in-plane shear strength of reinforced thermosetting plastics in flat sheet form in thicknesses ranging from 2.54 to 6.60 mm (0.100 to 0.260 in.).
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
Note 1—This standard has no known ISO equivalent.

General Information

Status
Historical
Publication Date
09-Mar-2002
ICS
83.120 - Reinforced plastics
Technical Committee
D20 - Plastics
Drafting Committee
D20.18 - Reinforced Thermosetting Plastics
Current Stage
Ref Project

Relations

Replaces
ASTM D3846-94 - Standard Test Method for In-Plane Shear Strength of Reinforced Plastics
Effective Date
10-Mar-2002
Replaced By
ASTM D3846-08 - Standard Test Method for In-Plane Shear Strength of Reinforced Plastics
Effective Date
01-May-2008
Referred By
ASTM F1092-19 - Standard Specification for Fiberglass (GRP) Pultruded Open-Weather Storm and Guard, Square Railing Systems
Effective Date
10-Mar-2002
Referred By
ASTM E2478-11(2022) - Standard Practice for Determining Damage-Based Design Stress for Glass Fiber Reinforced Plastic (GFRP) Materials Using Acoustic Emission
Effective Date
10-Mar-2002
Referred By
ASTM C1292-22 - Standard Test Method for Shear Strength of Continuous Fiber-Reinforced Advanced Ceramics at Ambient Temperatures
Effective Date
10-Mar-2002
Referred By
ASTM D4762-18 - Standard Guide for Testing Polymer Matrix Composite Materials
Effective Date
10-Mar-2002
Referred By
ASTM D7745-19 - Standard Practice for Testing Pultruded Composites
Effective Date
10-Mar-2002
Referred By
ASTM F2902-16e1 - Standard Guide for Assessment of Absorbable Polymeric Implants
Effective Date
10-Mar-2002
Referred By
ASTM C1425-19 - Standard Test Method for Interlaminar Shear Strength of 1D and 2D Continuous Fiber-Reinforced Advanced Ceramics at Elevated Temperatures
Effective Date
10-Mar-2002
Referred By
ASTM D6856/D6856M-03(2016) - Standard Guide for Testing Fabric-Reinforced “Textile” Composite Materials
Effective Date
10-Mar-2002

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ASTM D3846-02 - Standard Test Method for In-Plane Shear Strength of Reinforced PlasticsASTM D3846-02 - Standard Test Method for In-Plane Shear Strength of Reinforced Plastics
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ASTM D3846-02 - Standard Test Method for In-Plane Shear Strength of Reinforced Plastics
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D3846 –02
Standard Test Method for
1
In-Plane Shear Strength of Reinforced Plastics
This standard is issued under the fixed designation D3846; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * 4. Summary of Test Method
1.1 This test method covers the determination of the in- 4.1 In-plane shear strength, as determined by this test
plane shear strength of reinforced thermosetting plastics in flat method, is measured by applying a compressive load to a
sheetforminthicknessesrangingfrom2.54to6.60mm(0.100 notched specimen of uniform width. The specimen is loaded
to 0.260 in.). edgewise in a supporting jig of the same description as that
1.2 The values stated in SI units are to be regarded as the referenced in Test Method D695 for testing thin specimens.A
standard. The values given in parentheses are for information schematic of the specimen used for this test and the supporting
only. jig is shown in Fig. 1. Failure of the specimen occurs in shear
1.3 This standard does not purport to address all of the between two centrally located notches machined halfway
safety concerns, if any, associated with its use. It is the through its thickness and spaced a fixed distance apart on
responsibility of the user of this standard to establish appro- opposing faces.
priate safety and health practices and determine the applica-
5. Significance and Use
bility of regulatory limitations prior to use.
5.1 Shear tests of various kinds are widely used in the
NOTE 1—This standard has no known ISO equivalent.
reinforced plastics industry to assess the strength of the
reinforcement-to-resin bond in polyester-, vinyl ester-, and
2. Referenced Documents
epoxy-resin composites. In addition to their importance for the
2.1 ASTM Standards:
2 generation of data for research and development, quality
D618 Practice for Conditioning Plastics for Testing
control,andspecificationpurposes,suchtestsareoffundamen-
D695 Test Method for Compressive Properties of Rigid
tal value to the fibrous reinforcement industry, since they can
2
Plastics
be used to assess the potential of new sizing systems for the
D2344 Test Method for Short-Beam Strength of Polymer
surface treatment of glass fibers.
3
Matrix Composite Materials and Their Laminates
5.2 This test method is useful for establishing the shear
4
E4 Practices for Force Verification of Testing Machines
strength of laminates or other reinforced plastics having
E691 Practice for Conducting an Interlaboratory Study to
randomly dispersed fiber reinforcement. While the test also
5
Determine the Precision of a Test Method
lends itself to parallel-fiber reinforced plastics, it has been
designed to accommodate nonparallel-fiber reinforced materi-
3. Terminology
als that cannot be tested satisfactorily by the short-beam
3.1 Definitions:
procedure described in Test Method D2344.
3.1.1 in-plane shear strength—the shear strength at rupture
in which the plane of fracture is located along the longitudinal
6. Apparatus
axis of the specimen between two centrally located notches
6.1 Testing Machine—Anysuitabletestingmachinecapable
machined halfway through its thickness on opposing faces.
of control of constant-rate-of-crosshead movement and com-
prising essentially the following:
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
6.1.1 Drive Mechanism—Adrive mechanism for imparting
and is the direct responsibility of Subcommittee D20.18 on Reinforced Thermoset-
to the movable member a uniform, controlled velocity with
ting Plastics.
respect to the stationary member, as required in 10.3.
Current edition approved March 10, 2002. Published May 2002. Originally
published as D3846–79. Last previous edition D3846–94. 6.1.2 Load Indicator—A load-indicating mechanism ca-
2
Annual Book of ASTM Standards, Vol 08.01.
pable of showing the total compressive load carried by the test
3
Annual Book of ASTM Standards, Vol 15.03.
specimen. The mechanism shall be essentially free of inertial
4
Annual Book of ASTM Standards, Vol 03.01.
5
lag at the specified rate of testing and shall indicate the load
Annual Book of ASTM Standards, Vol 14.02.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D3846
8. Conditioning
8.1 Conditioning—Condition the test specimens at 23 6
2°C(73.4 63.6°F)and50 65%relativehumidityfornotless
than 40 h pri
...

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SCOPE
1.1 This test method describes a procedure for determining the tensile properties of a pultruded, glass-fiber-reinforced thermosetting plastic rod of diameters ranging from 2.03 mm (0.08 in.) to 12.7 mm (0.5 in.). Test Method D7205/D7205M is an alternative test method to determine tensile properties of fiber-reinforced composite rods of diameters bigger than 12.7 mm (0.5 in.).  
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This specification covers unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or application from solution. Unfilled polycarbonate materials are classified into groups according to their composition. The groups are Group 01, Group 02, Group 03, Group 04, Group 05, and Group 06. These groups are subdivided into classes which are Class 0, Class 1, Class 2, Class 3, and Class 4 and these classes can be further be subdivided into grades which are Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7 and Grade 0. Different tests shall be conducted in order to determine the following properties of polymer materials: Izod impact strength, flexural modulus, tensile strength, and deflection temperature.
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1.1 This test method covers the determination of the apparent horizontal shear strength of fiber reinforced plastic rods. The specimen is a short beam in the form of lengths of pultruded rods. This test method is applicable to all types of parallel-fiber-reinforced plastic rod samples.  
1.2 This test method is primarily used for quality control and specification purposes (see 5.1).  
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ASTM D3841-21(Specification)
Standard Specification for Glass-Fiber-Reinforced Polyester Plastic Panels

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This specification covers glass-fiber reinforced polyester plastic panels intended for use in construction. Light transmitting panels covered by this specification are divided into two types, based on relative response to a laboratory flammability test: Type CC1 for limited flammability and Type CC2 for general purpose. These types may be further subdivided by grades based on relative response to weathering tests: Grade 1 for weather resistance and Grade 2 for general purpose. The polyester resin used in the panels shall be a thermosetting styrenated and acrylated polyester resin composed of polymeric esters in which the recurring ester groups are an integral part of the main polymer chain. The resin shall be reinforced with glass fibers. The polyester resin may contain additives for various purposes. The materials shall be tested for water absorption, tensile strength, linear thermal expansion, and flexural strength.
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1.1 This specification covers the classification, materials of construction, workmanship, minimum physical requirements, and methods of testing glass-fiber reinforced polyester plastic panels intended for use in construction. Panels for specialized or unique applications have the potential to require values significantly above or below those stated in this specification. Recommended practices for certain specific applications are included as Appendix X1. This specification is not intended to restrict or limit technological changes affecting performance when those changes are agreed upon between the purchaser and the seller.  
1.2 Supplementary information on chemical resistance, resistance to heat, and installation practices are provided in Appendix X1.  
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1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.5 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in Tables and Figures) shall not be considered as requirements of this standard.  
1.6 Fire properties are determined by using laboratory flammability tests (Test Methods D635, D1929, and E84).  
1.6.1 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.  
1.6.2 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.  
1.7 The following precautionary caveat pertains only to the test method portion, Section 8 of this specification. This specification 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 specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  
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ASTM D3982-21(Specification)
Standard Specification for Contact Molded “Fiberglass” (Glass Fiber Reinforced Thermosetting Resin) Ducts

ABSTRACT
This specification covers the material and design requirements, and fabrication of ducts and hoods made of "fiberglass" (glass fiber reinforced thermosetting resin) consisting of a polyester, vinyl ester, or other qualified resin-matrix systems with fiber reinforcement manufactured by contact molding, intended for use in handling corrosive fumes and process gases. Special attention is given to equipment that operates at specified temperatures with regard to strength and corrosion resistance. This specification does not address the selection of resins and reinforcements for specific chemical environments.
SCOPE
1.1 This specification covers ducts fabricated by contact molding intended for use in handling corrosive fumes and process gases. Special attention is given to equipment that operates at temperatures over 180°F (82.2°C) with regard to strength and corrosion resistance.  
1.2 The material of construction shall be “fiberglass” consisting of a polyester, vinyl ester, or other qualified resin-matrix systems with fiber reinforcement in accordance with Specification C582.  
1.3 This specification is not intended to cover selection of resins and reinforcements for specific chemical environments.  
1.4 This specification covers ducts up to a design pressure of ±5 psig (34.5 Pa).  
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.6 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.
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ASTM C581-20(Practice)
Standard Practice for Determining Chemical Resistance of Thermosetting Resins Used in Glass-Fiber-Reinforced Structures Intended for Liquid Service

SIGNIFICANCE AND USE
4.1 The results obtained by this practice shall serve as a guide in, but not as the sole basis for, selection of a thermosetting resin used in an RTP structure. No attempt has been made to incorporate into the practice all the various factors that will potentially affect the serviceability of an RTP structure when subjected to chemical environments. These factors will potentially include stress, different resin-to-glass ratios, and multiple veils.
SCOPE
1.1 This practice is designed to evaluate, in an unstressed state, the chemical resistance of thermosetting resins used in the fabrication of reinforced thermosetting plastic (RTP) laminates. This practice provides for the determination of changes in the properties, described as follows, of the test specimens and test reagent after exposure of the specimens to the reagent: hardness of specimens, weight change thickness, appearance of specimens, appearance of immersion media, and flexural strength and modulus.  
1.1.1 This practice is also useful to evaluate other factors, such as surfacing veils and the effect of resin additives, on the chemical resistance of the resin.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Note 1: There is no known ISO equivalent to this 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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    English language
    sale 15% off
  • Standard
    5 pages
    English language
    sale 15% off