Mechanical fracture test


Evaluates the resistance of a material to fracture propagation under load.

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Mechanical fracture testing analyses the behaviour of materials in the presence of defects or cracks, evaluating parameters such as fracture toughness, crack growth under static or cyclic loads, and crack propagation speed, expressed as linear length per cycle, once the stress (ΔK) has been fixed. This test is carried out at room temperature, using suitable test specimens (CT), and allows for improved material design and selection, preventing structural failures.

Tests are necessary to fine-tune innovative solutions for products and components across various application sectors.

Application materials

Metals and alloys

Polymeric and composite materials

Advanced ceramics

Biomedical materials

Materials for construction and infrastructure


Application sectors

Automotive

Aerospace

Energy Oil & Gas

Railway

Mechanical

Nautical

Biomedical

Construction and Infrastructure

The main mechanical fracture testing techniques

We carry out countless standardised or customised mechanical fracture tests on leather and fabrics, both chemical-toxicological and physical-mechanical, assessing the resistance of a material to fracture propagation under load.

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01 Fracture toughness test (KIC Test)

Measures the resistance of a material to crack propagation under static load conditions. The KIC parameter is essential for designing structures subject to critical stresses, such as aircraft, vehicles and infrastructure.

ASTM E399ISO 12135

02 Fatigue crack growth test (da/dN test)

Analyses the propagation speed of a crack under cyclic loading conditions, simulating the effect of prolonged use on structural materials. It is used to predict the operational life of components.

ASTM E647ISO 12108

03 J-Integral test (JIc Test)

Evaluates the behaviour of ductile materials in the presence of cracks, determining the JIc parameter, which describes the energy required for fracture propagation. It is crucial for materials with high plastic deformation capacity.

ASTM E1820ISO 12135

04 CTOD test (Crack Tip Opening Displacement)

Measures the deformation at the crack tip before propagation, particularly useful for structural materials used in critical conditions, such as steels for offshore infrastructure and gas pipelines.

BS 7448ISO 15653

05 Fracture mechanics – Fatigue crack growth

We evaluate the resistance to fatigue crack propagation on metallic and composite materials, simulating cyclic stresses to predict the service life of the component.

ASTM E647

06 Tensile test

We measure the behaviour of materials under axial load, determining mechanical properties such as strength, elongation and elastic modulus on metals, polymers and composites.

ASTM E8/E8MUNI EN ISO 6892ISO 527ASTM D638ASTM D412

07 Bending test

We evaluate the strength and stiffness of materials subjected to bending stresses, which is useful for estimating the response to transverse loads in structural applications.

UNI EN ISO 14125ASTM D790ASTM D7249ASTM C393

08 Shear test on composite materials

We determine the shear strength characteristics in specific planes, which are essential for analysing the performance of laminates and multilayer structures.

UNI EN ISO 14129ASTM D3518ASTM D7078UNI EN ISO 14130ASTM D2344ASTM D5379

09 Compression test

We analyse the response of materials to compressive stresses to detect properties such as yield strength, elastic modulus and deformation resistance.

ASTM E9/E9MASTM D695ISO 604UNI EN ISO 14126ASTM D3410/D3410MASTM D6641/D6641M
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Laboratorio analisi di materiali metallici analisi chimico

Fully customised analysis and testing

All analyses can be structured in a completely customised manner, based on customer requirements. We offer tailor-made tests for materials, conditions of use and required regulations, ensuring reliable and targeted results.

For more information, visit Corrosionpedia

For further insights, articles, and regulations on material corrosion, visit the CORROSIONPEDIA portal (https://www.corrosionpedia.com)

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Areas of application

Fracture mechanics testing is essential for ensuring the safety and reliability of critical components in industries such as automotive, aerospace, oil and gas, and rail. These tests evaluate the resistance of materials to crack propagation, reducing the risk of structural failure and optimising design.

Immagine della prova Tests and analyses for the automotive industry

Tests and analyses for the automotive industry

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Immagine della prova Tests and analyses for the Energy Oil & Gas sector

Tests and analyses for the Energy Oil & Gas sector

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Immagine della prova Tests and analyses for the mechanical engineering sector

Tests and analyses for the mechanical engineering sector

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Immagine della prova Tests and analyses for the railway sector

Tests and analyses for the railway sector

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Immagine della prova Aerospace Testing and Analysis

Aerospace Testing and Analysis

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Immagine della prova Tests and analyses for the Nautical sector

Tests and analyses for the Nautical sector

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All tests can be performed in a completely customized manner, adapting to the customer's needs. Pontlab also offers tailored consulting services to define the most suitable tests, ensuring reliable and targeted results.

Discover other tests

In addition to mechanical fracture testing, Pontlab performs countless other tests, even on different materials, including polymers, fabrics, leather and paints. Discover the other tests by visiting the dedicated pages.

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