Source: InfraTecFriction is omnipresent. External friction between contacting outer surfaces of solids occurs, for example, in the rolling resistance of vehicles or in the abrasion of mechanical connections. Internal friction occurs during deformation processes within solids, liquids and gases, acting between neighboring particles.
Typical of all friction processes is the generation of heat, which can be made visible and measurable using thermography. High-resolution thermal IR cameras allow even the smallest temperature differences or temperature gradients to be determined — even in fast processes. They can not only be used to monitor mechanical wear processes (machine health), but also to detect crack formation or determine material strength.
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In addition to tribological measurements, friction processes can be comprehensively analyzed by means of thermography in terms of their quality and quantity. This contributes, for example, to understanding the behavior of lubricating oils up to the point of film breakage or the deformation-mechanical properties of material composites under tensile and compressive stress.
