Skip to main content
Search
Menu

Fatigue testing of materials and components

Fatigue testing is carried out with a cyclic load, until breakage occurs. The purpose is to determine the fatigue life and strength of a material or component. We perform both standardized and specialized fatigue testing on materials and components, for both machinery and products for construction and infrastrucrure.

Purpose

Fatigue test results are an important basis for assessing life expectancy and strength of materials, components or structures under cyclic load, or to ensure that the necessary safety criteria are met.

The question may vary with application. In low cycle fatigue (LCF), high loads are of interest, around the yields stress limit of the material, while in high cycle fatigue (HCF) lower loads with a large number of cycles are looked at, up to the so-called fatigue limit. In this area, so-called SN curves can be plotted to examine the relationship between load amplitude and service life.  The test can be carried out in different ways, e.g. load-controlled (controlled force) or elongation-displacement controlled (controlled elongation/displacement).

In our laboratory in Borås, we can perform tests on everything from small test bars to complete components with a size over 10 meters, and with loads up to 20 MN (2000 metric tons). To determine fatigue limits (high cycle numbers) of materials that are not frequency dependent, our resonance machines allow load frequencies around 100 Hz. We can also use variable amplitude (spectrum fatigue), or simulate custom load spectra specific to the application.

Specialized test setups with multi-axial loads can be built up on test floors with attachment points, where load are applied with hydraulic cylinders.

Test assignments are often complemented with various add-on services, such as:

  • Testing at elevated temperatures,
  • Prediction of life expectancy, load analysis, reliability and uncertainty assessment,
  • Spectrum fatigue (variable-amplitude loads),
  • Fracture mechanical analysis,
  • Tensile test with advanced measuring techniques, such as acoustic emission (AE) and digital image correlation (DIC) methods,
  • Development of material models for FEM analysis,
  • Validation and verification (V&V) for quality assurance of simulation models.

Method

Fatigue testing is carried out in our accredited laboratory in Borås. We are accredited for methods SS-EN 112370, ASTM E466, ASTM E606, ECE R55, SS-EN ISO 14801, SS-ISO 1099.

Deliveries

Fatigue test results may be in the form of Wöhler diagrams (S-N curves) showing load amplitude against number of cycles, determination of a fatigue limit or verification of service life. When an applicable standard exists, results may be delivered accordingly.

Request for quote

CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

* Mandatory

By submitting the form, RISE will process your personal data.

Service

Determination of fatigue properties for materials and components

Metrology Area

Force and torque

Delivery level

Accredited, Non-accredited

Standards

SS 112370

ASTM E466

ASTM E606

ECE R55

SS-EN ISO 14801

SS-ISO 1099

Price

Price on tender

Delivery time

Fatigue testing takes time, as a number of tests must be cyclically loaded over a long period of time. The delivery time is mainly affected by the number of tests, the number of cycles required for each test and the frequency that can be used in the test.

Preparations

Test specimens can either be provided by the customer, or manufactured in our workshop from customer material samples. Components are normally provided by the customer.

Contact person

Eva Larsson

Filosofie kandidat

Read more about Eva

Contact Eva
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

* Mandatory By submitting the form, RISE will process your personal data.

Jukka Holappa

Contact person

Jukka Holappa

Enhetschef

+46 10 516 50 65

Read more about Jukka

Contact Jukka
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

* Mandatory By submitting the form, RISE will process your personal data.

Contact

Cannot find what you are looking for or are you curious about how we can help?

Send message
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

* Mandatory By submitting the form, RISE will process your personal data.