Abstract: In a method of localising damages or defects in objects or in materials a standing wave is generated within the object (6) or in the material to be tested. This standing wave is substantially limited to a small area in the object or the material, between a vibration surface and another surface (8) in the object or in the material in order to detect damages or defects within said area of the object or the material from readings obtained when measuring on the standing wave and by using Slow Dynamics. A corresponding arrangement includes a signal source (2) which is connected to a transmitter (4) for generating a resonant sound wave within the object (6) or the material. A receiver (4) for receiving a measurement signal from the object or the material is connected to a measurement signal processing and analysing apparatus (10).

Abstract: In a method of detecting damage in materials or objects (4) the material or object is physically influenced to produce a physical change of the material or object inducing transient slow dynamics in case of damages in the material or object. Slow dynamics induced material elastic modulus changes are detected as indication of damages of the material or object. In a device for non-destructive detection of damage in materials or objects (4), an impact source (16) is provided to impact the material or object to physically influence the material or object to produce a physical change of the material or object inducing transient slow dynamics in case of damages in the material or object. A detector (2,8,10,12,14,6) is provided to detect by said slow dynamics induced material elastic modulus changes as indications of damages of the material or object.

Abstract: In a method of detecting damage in materials or objects (4) the material or object is physically influenced to produce a physical change of the material or object inducing transient slow dynamics in case of damages in the material or object. Slow dynamics induced material elastic modulus changes are detected as indication of damages of the material or object. In a device for non-destructive detection of damage in materials or objects (4), an impact source (16) is provided to impact the material or object to physically influence the material or object to produce a physical change of the material or object inducing transient slow dynamics in case of damages in the material or object. A detector (2,8,10,12,14,6) is provided to detect by said slow dynamics induced material elastic modulus changes as indications of damages of the material or object.