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.
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
01Fracture toughness test (KIC Test)
02Fatigue 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
02Fatigue crack growth test (da/dN test)
03J-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
03J-Integral test (JIc Test)
04CTOD 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
04CTOD test (Crack Tip Opening Displacement)
05Fracture 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
05Fracture mechanics – Fatigue crack growth
06Tensile 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
06Tensile test
07Bending 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
07Bending test
08Shear 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
08Shear test on composite materials
09Compression 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
09Compression test
0103
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.
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.
Tests and analyses for the automotive industry
Tests and analyses for the Energy Oil & Gas sector
Tests and analyses for the mechanical engineering sector
Tests and analyses for the railway sector
Aerospace Testing and Analysis
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.