The VW PV 3307 standard, developed by the Volkswagen automobile company, defines a test procedure for determining the plastic and elastic deformation behavior under defined test conditions. This test method is used for elastomer components subjected to compressive loads in practical use. The tests, test time, test temperature and limit values must be adapted to the relevant requirements. For example, permanent deformation according to this test method requires 46 hours at plus 70 degrees and below 60 percent humidity.
Materials deform when pushed, pulled, and bent. Elasticity is the measure of the amount by which the object can return to its original shape after these external forces and pressures cease. The opposite of flexibility is plasticity. When a material is stretched and remains in tension, the material is said to be plastic. When energy begins to change the shape of a substance and remains unchanged, it is called plastic deformation. This is elastic deformation when the material returns to its original state. Mechanical energy is lost when a material undergoes plastic deformation. Producing goods from raw materials requires a large amount of plastic deformation.
Many materials have some force or pressure at which they deform elastically. If more force or pressure is applied, it will undergo plastic deformation. Materials that undergo considerable plastic deformation before fracture are ductile materials. Materials that cannot stretch or bend much without breaking are called brittle. Copper is quite ductile, so it is mostly used as a wire. Glass and ceramics are often brittle, breaking rather than bending.
Thermoplastic elastomers are versatile materials thanks to their outstanding mechanical, chemical and optical properties. It is widely used in many engineering products, including fire protective composites, elastomeric foams and cellular materials, adhesive coatings and biomedical devices. Recently, stimulus-responsive polymers, self-healing composites, biodegradable and biocompatible materials, and superhydrophobic surfaces have been developed.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides testing services for the determination of plastic and elastic deformability of elastomer components within the scope of VW PV 3307 standard, with its trained and expert staff and advanced technological equipment.
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