NORNER is a fully independent industrial polymer institute We are your technological partner to the offshore industry

Industrial Impact

Norner provide technology projects and support to the industry. We follow the long traditions of being, an important partner for the whole plastic value chain. We support customers directly with their required testing and we strive to make a difference for the industry.

Plastic product failures do occur. Failures due to poor material selection or poor design can be avoided by understanding how the material is influenced by the operational environment.

Fatigue testing is one of many tests Norner offer that can be used to predict the life time of components or screen fatigue properties of materials. The influence of heat, chemicals, different climates and UV radiation on fatigue properties can also be studied.

Norner Services

Norner Scientific Laboratories offer service within all aspects of polymer applications.• Material selection• Product development• Durability testing• Pre-qualification testing• Quality evaluation• Design development• Failure analysis• Analytical servicesOther relevant services

Development of new products, • systems or materials.Multiclient research projects • funded as JIP or by public funds.Scientific laboratory with more • than 300 tests according to ISO standards.Analysis of material failures • or weaknesses in plastics and metals.Quality improvement• Product improvement• Seminars and training•

Fatigue testing and lifetime predictions

Norner Confidence

Norner strives to achieve a close cooperation with our customers and facilitate a good flow of information.

Any information regarding the product, its production and use is vital for how we select the test methods and final requirements.

Our team of material testing experts deliver structured and conclusive reports. We serve our customers in a personalised way and enjoy working with our clients.

Norner’s three business areas:Scientific LaboratoriesPolymer ResearchPlastics Development

Norner is approved according to:ISO 9001:2008Achilles Joint Qualification Systems

NORNER Fatigue Testing

Norner ASAsdalstrand 291NO-3962 StathelleNorway

Tel +47 35578000Fax +47 35578124Web www.norner.noMail post@norner.no

Our InsightThe know-how and experience of our material experts combined with the flexibility of the equipment makes it possible to develop and adapt testing methods for a multitude of applications. Our fatigue testing machine can impose cyclic loads on test samples until a fatigue crack starts to grow and to final failure i.e. a S-N curve can be created. This curve illustrates how many cycles a sample can withstand at a given cyclic stress range.

Combined with Finite Element Analysis (FEA) the lifetime of components based on fluctuating stresses can be estimated. Our Facilities

Fatigue testing for simulation • of cyclic stresses.Microscopy investigations • and mechanical testing. Durability & climate testing.• Laboratory for additives and • composition analysis.Autoclaves for high pressure • and temperature exposure.

Project examplePredicting the design life of a 0.25mm thick pressurised vessel.

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FEA model of the vessel is created based on material properties and geometry.

The stress distribution in the vessel is calculated for various internal pressures.

NORNER Fatigue Testing

Several test samples are subjected to various cyclic loads until failure occurs i.e. an S-N curve is created.

The calculated tensile stresses in the vessel are compared with the stresses in the original S-N curve.The design life of the vessel can be estimated for various applied internal pressures.