ISO 15108 pdf download

ISO 15108 pdf download.Adhesives — Determination of strength of bonded joints using a bending-shear method 1 Scope This International Standard describes a procedure for the determination of the strength of adhesive joints, using a bending-shear method. The method can only be used for comparing adhesives, and the results cannot be used for design purposes. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 291 :1 997, Plastics — Standard atmospheres for conditioning and testing . ISO 4587:1 995, Adhesives — Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies . ISO 4588:1 995, Adhesives — Guidelines for the surface preparation of metals . ISO 5893:1 993, Rubber and plastics test equipment — Tensile, flexural and compression types (constant rate of traverse) — Description . ISO 7500-1 :— 1 ) , Metallic materials — Verification of static uniaxial testing machines — Part 1 : Tensile/compression testing machines . ISO 1 0365:1 992, Adhesives — Designation of main failure patterns . ISO 1 3895:1 996, Adhesives — Guidelines for the surface preparation of plastics . 3 Principle A bonded lap-joint is loaded in the centre of the bonded area until the joint breaks or until the maximum load is reached. The maximum load recorded is taken as the strength of the assembly. 4 Apparatus 4.1 Tensile-testing machine, operating in the compression mode, capable of maintaining a pre-determined constant crosshead rate. The machine shall be capable of determining a maximum load. The measured strength shall lie between 1 5 % and 85 % of the full-scale capacity of the load-measuring device. The machine shall permit the measurement and recording of the applied force with an accuracy of ± 1 %. The equipment shall be calibrated regularly in accordance with ISO 7500-1 , or in accordance with ISO 5893 in the case of rubber or plastic adherends. NOTE — It is recommended that the machine be autographic, giving a chart that can be read in terms of millimetres of crosshead movement as one coordinate and applied force as...