ASTM-D5868 Historical Revision Information
Standard Test Method for Lap Shear Adhesion for Fiber Reinforced Plastic (FRP) Bonding

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Standard Test Method for Lap Shear Adhesion for Fiber Reinforced Plastic (FRP) Bonding


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.

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.


composite; FRP; lap shear

To find similar documents by ASTM Volume:

15.06 (Adhesives)

To find similar documents by classification:

83.180 (Adhesives Including adhesive tapes Adhesive tapes for electrical insulation purposes, see 29.035.20)

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Document Number


Revision Level

2001 R14 EDITION



Modification Type


Publication Date

March 15, 2014

Document Type

Test Method

Page Count

2 pages

Committee Number