EN 6060 is an aerospace-focused test method used to determine the tensile single lap shear strength of bonded joints made with fibre reinforced plastic (FRP) composite laminates. It is commonly applied when qualifying adhesive bonding processes and comparing joint performance across laminate builds and bonding approaches.
Because lap shear results are sensitive to specimen design, support conditions, and alignment, labs typically treat EN 6060 as a setup-driven method where the cited edition and specimen type must be matched to the customer or program requirement. If you need help confirming whether EN 6060 fits your bonded composite joint requirement, talk with our team about your material system and test objective.
EN 6060 (Aerospace series) — Fibre reinforced plastics — Test method — Determination of the tensile single lap shear strength
EN 6060 is used for tensile lap shear testing of bonded FRP composite joints. The method is typically used for comparing bonded joint performance across different laminate configurations and bonding approaches used in aerospace composite structures.
The standard may be adopted and cited under national designations (for example, as a DIN EN document). When you quote or build a test plan, the exact cited designation and edition matter for fixture selection and reporting expectations.
Quick definition
EN 6060 in one line: A tensile test method that loads a single-lap bonded composite specimen in tension to determine lap shear strength, with options for different specimen types and for supported vs. unsupported testing.
What This Standard Covers
EN 6060 focuses on tensile lap shear strength for bonded joints made from fibre reinforced composite laminates. Depending on the referenced specimen configuration, it can be applied to different laminate and joint constructions used to represent manufacturing routes and repair or assembly practices.
In practice, the standard drives how the lap joint is loaded, how bending is limited (when supports are used), and what strength value(s) are derived from the force response.
Why This Standard Matters in Testing
Lap shear testing is often used as a screening and qualification tool for bonded composite joints, but the measured strength can change noticeably with small differences in joint geometry, support conditions, and alignment. EN 6060 provides a consistent way to run comparative testing so that adhesive selection, surface preparation, cure parameters, and laminate build changes can be evaluated with less ambiguity.
For equipment selection, the key takeaway is that EN 6060 is not only about having enough load capacity; it is also about controlling eccentric loading and minimizing unintended peel/bending effects that can distort results and failure modes.
Common Materials, Product Types, or Applications Covered
EN 6060 is most commonly associated with bonded joints in fibre reinforced polymer composites used in aerospace structures. Typical use cases include coupon-level comparison of bonded laminate joints and process qualification work where consistent failure behavior and repeatable joint strength values are needed.
- Bonded composite laminate joints (FRP-to-FRP), including configurations used to represent aerospace manufacturing and assembly bonding
- Process studies where surface preparation, adhesive selection, or cure parameters are being compared
- Programs where a supported lap shear approach is specified to reduce bending sensitivity
Common Test or Verification Workflow
Most EN 6060 testing programs follow a qualification-style workflow: define the joint construction and specimen type, prepare bonded coupons under controlled conditions, condition specimens if required by the calling specification, then run tensile loading to failure and record peak load and failure mode.
Common workflow elements: specimen build definition, controlled bonding process, conditioning (when specified), tensile loading of lap joint, peak force/strength calculation, and failure mode documentation.
Equipment Commonly Used for This Standard
EN 6060 is typically performed on a universal testing machine (UTM) configured for tensile loading. The main equipment decisions are driven by alignment control, fixture strategy (including any support arrangement), and data quality needs for force and displacement.
Common equipment: servo-electric or servo-hydraulic UTM, appropriately sized load cell, tensile grips/clevis-style attachments suited to the specimen tabs or end geometry, and a lap shear fixture or support tooling when the specified configuration requires supported testing.
Practical setup considerations: rigid load train, minimized backlash, accurate grip alignment to reduce secondary bending, and a fixture approach that matches the required “supported” or “unsupported” condition stated in the program requirement.
If you are selecting a machine frame capacity, grips, and lap shear tooling for bonded composite coupons, you can request a detailed quote for an EN 6060-oriented configuration.
How to Read This Designation or Revision
Designation meaning: “EN 6060” is the European (EN) designation for an aerospace-series composite test method covering tensile single lap shear strength of bonded fibre reinforced plastics.
Revision sensitivity: Lap shear methods can be highly sensitive to specimen type, support conditions, and reporting requirements. When EN 6060 is cited in a purchase order, contract, or internal procedure, the exact edition (and any national adoption designation) should be captured so the fixture approach and result reporting match the requirement.
Related Standards, Methods, or Frameworks
Bonded joint evaluation is often supported by additional lap shear methods and adhesive/composite qualification documents. Where aerospace adhesive or bonded-joint programs are in scope, EN 6060 may be referenced alongside other lap shear standards used for structural adhesive characterization.
- BS EN 2243-1 (aerospace structural adhesives — lap shear strength)
- Other aerospace-series FRP coupon methods used for comparative laminate and joint performance testing
Get help selecting an EN 6060 test setup
If you are equipping a lab for bonded composite coupon testing and need a UTM, grips, and lap shear tooling aligned to your cited EN 6060 configuration, contact our team with the specimen type, expected load range, and any supported/unsupported requirements.