Adhesives - Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies
1 Scope
This standard specifies a method for determining the tensile lap-shear strength of rigid-to-rigid bonded assemblies.
This standard also specifies the conditions of specimen preparation and testing. This test procedure does not provide design information.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below. For undated references, the latest edition of the normative document applies.
GB/T 2918 Plastics - Standard atmospheres for conditioning and testing (GB/T 2918-1998, ISO 291: 1997, IDT)
GB/T 16997 Adhesives - Designation of main failure patterns (GB/T 16977-1997, ISO 10365: 1992, IDT)
ISO 527-1:1993 Plastics - Determination of tensile properties - Part 1: General principles
ISO 17212 Structural adhesives - Guidelines for the surface preparation of metals and plastics prior to adhesive bonding
3 Principle
Adhesive lap-shear bond strength is determined by stressing a single-overlap joint between rigid adherends in shear by the application of a tensile force parallel to the bond area and to the major axis of the specimen.
Note 1: Single-lap specimens are economical, practical and easy to make. They are the most widely used specimens for development, evaluation and comparative studies involving adhesives and bonded products, including manufacturing quality control.
Note 2: The strength values obtained from the single-lap specimen shall not be used as allowable design-stress values for structural joints.
Foreword i
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Specimens
6 Conditioning
7 Test procedure
8 Expression of results
9 Precision
10 Test report
