ISO 10354-1992 PDF

Full title and description

ISO 10354:1992 — Adhesives — Characterization of durability of structural-adhesive-bonded assemblies — Wedge rupture test. This International Standard specifies a qualitative wedge-rupture (wedge‑cleavage) test method intended to simulate cleavage forces at a metal‑adhesive/primer interface and to assess surface preparation and the durability of bonded assemblies (primarily for aluminium and titanium alloys, but adaptable to other metals and plastics with appropriate consideration of adherend thickness and rigidity).

Abstract

The wedge rupture test creates a pre-crack in a bonded flat specimen by inserting a wedge into the bondline and then measures the initial and final crack lengths after laboratory ageing. The method is qualitative and is used both to check surface preparation and to characterize the environmental durability of structural adhesive joints. The test was published as ISO 10354 in April 1992 and remains confirmed as the current edition.

General information

• Status: Published (International Standard; confirmed in periodic review, most recently confirmed 2023).
• Publication date: April 1992 (Edition 1, 1992-04).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.180 (Adhesives).
• Edition / version: Edition 1 (1992).
• Number of pages: 4 (published ISO PDF).

Scope

ISO 10354:1992 defines a qualitative laboratory method to characterise the durability of structural adhesive bonds by imposing cleavage stresses via a driven wedge. It is intended primarily for bonded assemblies of aluminium and titanium alloys but permits application to other metals and plastics when adherend thickness and stiffness are taken into account. The method also serves as a process-control check of surface preparation and bonding procedure.

Key topics and requirements

• Test principle: insertion of a chemically non‑reactive wedge into the bondline of a flat bonded specimen to produce cleavage stresses and initiate a crack; measure initial and final crack lengths to evaluate propagation.
• Specimen preparation: typical specimen dimensions and trimming instructions are given (examples in the standard: strips ~150 mm × 25–27 mm, adherend thickness and machining tolerances specified).
• Aging/conditioning: specimens are subjected to laboratory ageing (ISO 9142 and other ageing guidance are referenced) before or during testing to assess environmental durability.
• Wedge and drive conditions: use of a corrosion‑resistant wedge (stainless steel recommended) and a driving device that advances the wedge at a controlled speed (typical driving speed given around 30 mm/min ± tolerance).
• Measurements and equipment: thickness gauges (to 0.01 mm), binocular loupe (×10–×40) to mark crack positions, timing equipment and measurement of l0 (initial crack length) and lF (final crack length) to compute propagation Δl = lF − l0.
• Sample size and reporting: the standard indicates testing of multiple specimens (typical practice ≥10 specimens) and requires reporting of adhesive/primer identification, adherend material and surface preparation, bonding procedure, ageing conditions, failure pattern (see ISO 10365), and individual and mean crack-length data.
• Limitations and interpretation: the test is qualitative — widely used for comparative and process‑control purposes (especially in aerospace) but not usually relied on alone for quantitative life‑prediction; interpretation must consider adhesive toughness, adherend stiffness and conditioning regimen.

Typical use and users

Used by materials laboratories, adhesive formulators, aircraft and aerospace manufacturers, and quality/production teams to assess surface treatments, process control and relative durability of structural adhesive joints. Common applications include aluminium and titanium bonded assemblies in aerospace and high‑performance engineering where environmental durability of the bondline is critical.

Related standards

ISO 10354 references and is commonly used alongside other adhesive standards and test methods such as ISO 9142 (laboratory ageing guidance), ISO 4588 (surface preparation for metal bonding), ISO 10365 (designation of fracture patterns), and internationally comparable methods such as ASTM D3762 (wedge cleavage / Boeing wedge test) and later wedge/wedge‑peel standards (e.g., ISO 11343 for wedge‑peel impact). Several national/adopted standards modify ISO 10354 (for example EN/SS adaptations like SS‑EN 14444 which is based on the wedge‑rupture approach).

Keywords

wedge rupture test; wedge‑cleavage; adhesive durability; structural adhesives; aluminium bonding; titanium bonding; laboratory ageing; surface preparation; ISO 10354; wedge test.

FAQ

Q: What is this standard?

A: ISO 10354:1992 is an ISO International Standard that specifies a qualitative wedge rupture (wedge‑cleavage) test to characterise the durability of structural adhesive bonds and to check surface preparation.

Q: What does it cover?

A: It covers specimen preparation, wedge and drive equipment, test procedure, measurement of initial and final crack lengths, conditioning/ageing references, and reporting requirements for the wedge rupture test applied principally to aluminium and titanium alloy bonded assemblies (with guidance for other materials).

Q: Who typically uses it?

A: Materials and test laboratories, aerospace and defence manufacturers, adhesive developers and quality/production engineers who need a comparative/process‑control method to evaluate surface treatments and the environmental durability of bonded joints.

Q: Is it current or superseded?

A: The 1992 edition (Edition 1) remains the published International Standard and was last reviewed and confirmed by ISO in 2023 — it is therefore current (confirmed). Users should check for any national modifications or newer related ISO methods for specific test variants.

Q: Is it part of a series?

A: ISO 10354 is a stand‑alone test method within ISO's adhesives work (developed under ISO/TC 61/SC 11) and is commonly referenced alongside other adhesive standards (e.g., ISO 9142, ISO 4588, ISO 10365). It is not a numbered multipart series but forms part of the broader suite of ISO adhesive test methods.

Q: What are the key keywords?

A: Wedge rupture test, wedge‑cleavage, durability, structural adhesive, surface preparation, aluminium, titanium, laboratory ageing, ISO 10354.