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Specialization field

Detection, characterization and evolution of fatigue cracks

Fatigue and fracture mechanics testing

A continued use and the application of dynamic or static forces cause stress and damage to components that can lead to their failure. Knowing the characteristics of materials and being able to predict their behavior in the face of these stimuli provides key information for the process of designing and manufacturing materials, equipment, and structures.

AZTERLAN’s fracture and fatigue tests allow characterizing the creation and growth of cracks (determination of the moment of their appearance and their evolution) in materials and components, as well as predicting their fatigue life by observing the condition of variable and repeated stresses when causing sudden breaks, without prior permanent deformation.

NADCAP accreditation

We have the technical and material means, as well as a highly qualified team, to respond to the needs of the industry.

  • ENAC accreditation.
  • Deadlines adjusted to the needs of the industry.
  • Confidentiality guarantee.
  • Independent laboratory, with more than 40 years of experience in the sectot.
  • Top-tier technological capabilities.

Advanced physical properties tests

ASTM E399, ASTM E1820, BS 7448-1:1991, BS 7448-2:1997, ASTM E1820, ISO 12135, UNE-EN ISO 15653.

Room temperature, high temperature, low temperature. 

  • Transport: Automotive, rail, naval, aerospace
  • Energy generation and transportation: Wind, Solar, Oil&Gas, Combined Cycle, Nuclear
  • Civil works: Bridges, Viaducts, Structural elements
  • Chemical industry
  • Equipment goods
  • Metallic transformation

Mechanical characterization tests carried out at room temperature, high temperature or low temperature, according to international standards and customer specifications.

These are the main values offered by these tests:

Determination of the Elastic Limit and Young’s Modulus at temperatures between -70ºC and +1000ºC.

Fracture toughness parameter that is mainly determined in ductile materials. It is the size of the opening of the crack front in the direction normal to the plane generated by fatigue.

Magnitude of fracture toughness in linear elastic regime. It is the resistance of a material to the extension of the crack when plane deformation predominates at its end. It is mostly used for brittle materials.

Characterization of the local stress and strain field in the area around the crack front. Tenacity value determined in elasto-plastic regime.

Characterization of the advance of a crack in a previously cracked material. Determination of the Paris equation, constants C and m, and the voltage intensity threshold Δkth.

Determination of fatigue curves of materials, their fatigue life limit, and the estimation of useful life cycles of a component.

Other services

Information of high added value to characterize and evaluate the behavior of materials

Contact our team of experts in advanced characterization of metallic materials.

Urko Uribe

Urko Uribe
Head of Mechanical testing

Ibai Gallastegi

Ibai Gallastegi
Head of Corrosion testing

Carmelo Santamarina

Carmelo Santamarina
Head of Non Destructive testing


David López
Head of Chemical testing

Jose Antonio Goñi

Josean Goñi
Technical Manager of In-Service Failure Diagnosis


Contact Urko.

Contact Ibai.

Contact Carmelo.

Contact David.

Contact Josean.

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