TEST SYSTEM AND METHOD FOR CREATING CONTROLLED AND REPEATABLE OUT-OF-PLANE FIBER DISTORTION IN COMPOSITE LAMINATES

In one version there is provided a test system (10) including a layup tool (20) having a layup surface (26), and two fairing bars (40) attached to the layup surface (26). The test system (10) includes the composite laminate (14) having a plurality of stacked plies (64), and positioned between the tw...

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Bibliographische Detailangaben
Hauptverfasser:	INGRAM, William H, SAINI, Gagandeep, NELSON, Karl M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TESTING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	In one version there is provided a test system (10) including a layup tool (20) having a layup surface (26), and two fairing bars (40) attached to the layup surface (26). The test system (10) includes the composite laminate (14) having a plurality of stacked plies (64), and positioned between the two fairing bars (40). The test system (10) includes fiber distortion initiators (90) positioned at one or more locations under, and adjacent to, one or more plies of the plurality of stacked plies (64). The test system (10) includes two caul plates with a gap (122) in between, and positioned over the composite laminate (14). When the test system (10) undergoes a pressurized cure process (140) with a vacuum compaction (144), a restricted outward expansion (148) of the plurality of stacked plies (64) by the fairing bars (40), and a pressure differential region (114) formed by the one or more fiber distortion initiators (90) at the one or more locations (92), create the controlled and repeatable out-of-plane fiber distortion (12b) in the composite laminate (14).