The reliability is in the tests
Pontlab is able to submit specimens, samples and finished products in mechanical and functional tests, in order to verify its suitability for the intended use.
the trials mechanical They need to know the mechanical properties of materials, basic requirement, in the design phase, for choosing the most suitable type of material to a specific use. These properties are determined in response to different types of stresses that may be applied to the material.
the trials functional They are intended to verify the operation of a product or of a component and the suitability for the intended use, recreating in the same test conditions of use.
Pontlab is able to perform tests according to unified standards or on specific needs of the customer through the implementation of dedicated equipment.
The wide range of mechanical and functional tests includes executables tensile tests, compression, flexion, friction, shock, outbreak, strofinio, fatigue resistance, duration tests of petrol injection systems, fracture mechanics, difficulty with impulse pressure, ripple test, etc.
The tests can be performed on standard specimens or of components or finished products. The materials are testable: metals, plastics, tires, textiles, leather and composite materials.
The tests are of greatest interest:
- fracture mechanics (FATIGUE CRACK GROWTH second ASTM E647) to evaluate the resistance to crack propagation on various materials.
- Mechanical tests traction of metals in accordance with ASTM E8 / E8M, of polymers and composite materials UNI EN ISO 6892, ISO 527, ASTM D638, ASTM D412
- test flexion of metals, polymers and composites in accordance with UNI EN ISO 14125, ASTM D790, ASTM D7249, ASTM C393
- evidence cut of composite materials according to the regulationsUNI EN ISO 14129, ASTM D3518, ASTM D7078, UNI EN ISO 14130, ASTM D2344, ASTM D5379
- test compression of metals ASTM E9 / E9M, polymers and composites: ASTM D695, ISO 604, UNI EN ISO 14126, ASTM D3410 / D3410M, ASTM D6641 / D6641M
- test twist it's the solicitation composed,
- functional tests on components, to test the components similar to those of use
Fatigue stress HCF-LCF (high cycle fatigue , low cycle fatigue)
They perform stress tests to fatigue traction, flexion, compression, rotating bending, applying high-frequency components of stress cycles, products, complex structures.
The evidence High Cycle Fatigue They can be performed in accordance with the legislation ASTM E466 , while evidence Low Cycle Fatigue They are performed in accordance with the legislation ASTM E606.
The tests can be performed by applying loads until 250kN, with frequencies until 100Hz, depending on the customer requirements, with instrumentation MTS.
Tests of fracture mechanics – the crack propagation
They perform mechanical testing of the fracture (FATIGUE CRACK GROWTH – FCG) to evaluate the resistance to crack propagation of various materials according to the legislation ASTM E647.
The test for determining the crack propagation speed is the tool to be able to calculate the rate at which a crack progresses. The value shall be understood as a linear length for each cycle, once fixed the effort (ΔK).
The test is conducted in accordance with international regulations ASTM E647, whose purpose is to determine the status of threshold stress (ΔKth). Below this value the speed of advancement of the crack can be negligible as well as the coefficients "C" and "m" that characterize the Paris law.
The tests are conducted in ambient temperature conditions using CT specimens.
Testing of fatigue stress with pulsating pressure
They perform fatigue stress tests with pulsating pressure on products and components (piping, collectors, automotive components).
The test can reach high pressures up to 500 bars and 15 Hz frequency and it can be performed with oil. It's’ possible to perform in the environment button pressure tests with temperature and humidity controlled, also using flammable liquids thanks to the explosion-proof rooms in nitrogen inerted.
static stress tests
They perform mechanical tests traction, flexion, twist, compression, solicitation composed, both on standard test specimens according to unified standards, that component, composite structures and finished products also large, according to customer specifications.
E 'can make the mechanical characterization of the material getting the unit load at break values, yield load unit, percentage elongation, elastic modulus both in tension and flexure, the coefficient of static and dynamic friction.
The tests can be performed by applying loads up to 250kN with instrumentation MTS.
Thanks to the climatic chamber for MTS frame is possible evidence mechanical stress in temperature ranges from -150 ° C to + 350 ° C of composite materials, plastics, elastomers, rolled metal, useful in particular in the automotive, aerospace, oil&gas, etc.
The characterization of materials in temperature, It provides designers with information essential for the realization of the components or to verify the resistance in the conditions of use.
And 'possible to simulate, through test benches specifically prepared in the laboratories, the operating conditions of components and products. They can also be played back certain environmental conditions or of liquid or gaseous atmospheres aggressions. The laboratory also has a specific test cells for flammable or explosive substances.
Endurance test of injection systems
They perform durability testing of complete injection systems or of individual parts :
- Injectors petrol
- Petrol pumps
- to complete the Gasoline Systems
- Low pressure direct injection
- Standard gasoline
- Other fluids (E10-M15-E85-E100)
- Low and high temperature
Tests on Tires, circles and friction linings
We can perform rolling resistance tests, rotating bending, measurement of friction coefficient :
The stress conditions of components and products subject to vibration, They are reproduced by means of electrodynamic shakers. They are applicable vibrational profiles of different types (their, shock, random), possibly coupled to thermal cycles.
They perform impact tests on components and products in accordance with uniform standards (is. UNI EN 13087 for helmets, UNI EN 1621 for motorcycle protections) or customized to specific requirements of the customer.