BS ISO 15509:2019 pdf free.Adhesives – Determination of the bond strength of engineering-plastic joints.
BS ISO 15509 1 Scope This document describes a test method for measuring the shear and/or tensile strength of an adhesively bonded plastic/ plastic specimen of a specific design. This method allows the determination of a combined shear and tensile behaviour of the bond. These shear and tensile values are useful for design purposes. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 291, Plastics—Standard atmospheres for conditioning and testing ISO 10365, Adhesives一Designation of main failure patterns ISO 17212, Structural adhesives一Guidelines for the surface preparation of metals and plastics prior to adhesive bonding.A hollow cylindrical test specimen of specific design is used for the determination of the shear and tensile strengths of adhesively bonded plastic/plastic joints. These values can be used in calculation programmes. The rotationally symmetrical specimen allows testing under tensile, torsional or combined tensile/torsional loads if a suitable test machine is used. NOTE 1 The shear stress is not uniformly distributed as the stress varies by approximately 15 % from the inner radius to the outer radius. Therefore, the calculated shear strength represents an “average” value. NOTE 2 The origin of the stress distribution curve is the deformation of the bond line, as the deformation increases with increasing diameter. The superimposition of shear and tensile stresses is negligible in the bondline of rotationally symmetrical specimen compared to lap-shear specimen as described in ISO 458Z.. There are practically no significant peaks in the stress distribution curve compared with the peaks observed in a lap- shear specimen, since the bond is continuous in the direction of the displacement.BS ISO 15509 pdf download.