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Significance and Use
5.1 Due to the increased use of adhesively-bonded FRP as a result of the inherent advantages afforded by bonded rather than mechanically-fastened joints (particularly the alleviation of stress risers and stress cracking), there is a need for tests by which joints of various FRP substrates and adhesives may be compared. This test method is intended to meet such a need.
5.2 Additional information on significance and use may be found in Guide D4896.
1.1 This test method describes a lap shear test for use in measuring the bonding characteristics of adhesives for joining fiber reinforced plastics to themselves and to metals. The method is applicable to random and fiber oriented FRP.
1.2 This test method is intended to complement Test Method D1002 and extend the application to single-lap shear adhesive joints of fiber-reinforced plastic (FRP) adherends. This test method is useful for generating comparative apparent shear strength data for joints made from a number of FRP materials, providing a means by which FRP surface treatments may be compared.
1.3 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.
1.4 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D907 Terminology of Adhesives
D1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal)
D2093 Practice for Preparation of Surfaces of Plastics Prior to Adhesive Bonding
D3163 Test Method for Determining Strength of Adhesively Bonded Rigid Plastic Lap-Shear Joints in Shear by Tension Loading
D4896 Guide for Use of Adhesive-Bonded Single Lap-Joint Specimen Test Results
D5573 Practice for Classifying Failure Modes in Fiber-Reinforced-Plastic (FRP) Joints
E4 Practices for Force Verification of Testing Machines
SAE StandardSAEJ1525 Lap Shear Test for Automotive-Type Adhesives for Fiber Reinforced Plastic (FRP) Bonding Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
ICS Number Code 83.180 (Adhesives)
UNSPSC Code 41113046(Adhesion tester); 73101505(Plastics or resins or fibers manufacturing services)