Fiber-reinforced plastic structure, has sensor fibers embedded into matrix of plastic surrounding reinforcement fibers, where sensor fibers exhibit defined electrical conductivity which changes during variation of length of sensor fibers

The structure has a matrix of plastic surrounding reinforcement fibers (10, 11), and sensor fibers (20) embedded into the matrix such that the sensor fibers together with the reinforcement fibers (10) functions as load bearing elements in a group of multiple layers. The sensor fibers exhibit a defin...

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Bibliographische Detailangaben
Hauptverfasser:	DE VRIES, EDGAR, MENDLER, JOSEF
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING CONSTRUCTIONAL ELEMENTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LIGHTING MEASURING MEASURING ANGLES MEASURING AREAS MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The structure has a matrix of plastic surrounding reinforcement fibers (10, 11), and sensor fibers (20) embedded into the matrix such that the sensor fibers together with the reinforcement fibers (10) functions as load bearing elements in a group of multiple layers. The sensor fibers exhibit a defined electrical conductivity which changes during variation of the length of the sensor fibers. The sensor fibers are designed as a roving. The sensor fibers exhibit a fiber core and a fiber coating made of electrical conducting material. Die Erfindung betrifft eine faserverstärkte Kunststoffstruktur, welche Verstärkungsfasern und eine diese umgebende Matrix aus einem Kunststoff umfasst. Es sind Sensorfasern vorgesehen, die derart in die Matrix eingebettet sind, dass die Sensorfasern zusammen mit den Verstärkungsfasern als lasttragende Elemente in einem Verbund aus mehreren Schichten fungieren. Die Sensorfasern weisen eine definierte elektrische Leitfähigkeit auf, die sich bei einer Längenänderung der Sensorfasern ändert. Auf dieser Weise ist es möglich, tatsächliche Belastungen in faserverstärkten Kunststoffstrukturen in einfacher Weise festzustellen.