BS ISO 11003-1:2019 pdf download

BS ISO 11003-1:2019 pdf download.Adhesives – Determination of shear behaviour of structural adlhesives.
BS ISO 11003-1 specifies a shear test for the characterization of adhesives in a bond. The shear stress/strain properties of the adhesive (including the shear modulus) are useful for advanced design work, such as in finite element analysis methods.
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 — Designation of main failure patterns
ISO 17212, Structural adhesives — Guidelines for the surface preparation of metals and plastics prior to adhesive bonding
Aluminium alloy or steel are suitable materials for the adherends. Other materials are acceptable provided the material (including pre-treated surface layers) has a shear modulus at least 10 times higher than that of the adhesive.
6.1.2 Preparation of the surface
The surfaces to be bonded shall be prepared in accordance with ISO 17212 or by any method leading to a cohesive failure within the adhesive layer.
6.1.3 Bonding
Prepare the specimens in accordance with the instructions of the manufacturer of the adhesive. Information about conditioning of the specimen shall be included in the test report.
A joint completely filled with adhesive is essential for the reliability of the test. The two adherends shall be bonded coaxially, with a maximum lateral displacement between their two axes of 0,002 r0 (r0 = outer radius), and a maximum angular deviation so that the bond line thickness varies by no more than 5 % of the recommended thickness. The joining device shall prevent the adhesive from running out of the joint and any displacement of the two adherends during curing.
Suitable values for the length of the specimen and the dimensions of the specimen holders are given in Figure 3.
The thickness of the bond is controlled by a spacer (see 614 and Figure 3).BS-ISO-11003-1-2019

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