Experimental testing correlation with numerical meso-scale modelling of CFRP structures and the significance to virtual certification of airframes

Simple item page
dc.contributor.authorMoulkiotis, C. N.
dc.contributor.authorGiannopoulos, Ioannis K.
dc.contributor.authorTheotokoglou, Efstathios E.
dc.date.accessioned2021-02-10T10:04:22Z
dc.date.available2021-02-10T10:04:22Z
dc.date.issued2021-01
dc.description.abstractThe design of structural components has altered fundamentally since laminated composites were proved excellent candidate materials in aerospace applications. The key aspects rendering CFRPs preferable to metals, are mostly their significantly higher specific mechanical properties, and the design flexibility through the stacking sequence selection. However, the currently in use limit and polynomial failure criteria, are inadequate to accurately predict all experimentally observed failure modes and damage specificities of the lamina individual constituents, imposing difficulties in the numerical certification of airframe composites. Thus, component and lamina-level testing are sometimes inevitable, requiring industrial resources which are expensive as well as environmentally costly. For that reason, virtual testing could be more promising in substituting real experimental testing, if conducted under advanced failure criteria which better describe the nature of failure. In this study, the open hole tensile (OHT) test has been simulated under the LaRC05 phenomenological failure criterion, with embedded strain-based progressive damage material behavior. A relatively common composite material in aerospace structures has been selected, IM7 8552 of Hexcel, to compare the numerical strength predictions with its corresponding experimental values. The simulations carried out are based on a standard test method by ASTM international, which address the standardisation of strength tests of polymer matrix composite laminates. The, model was created in ABAQUS/Explicit under the VUMAT user subroutine. The resulted predictions have been found to well – correlate with the testing data, irrespective the specimen stacking sequence.en_UK
dc.identifier.isbn978-84-121101-7-3
dc.identifier.urihttps://virtual.wccm-eccomas2020.org/
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16322
dc.language.isoenen_UK
dc.publisherInternational Centre for Numerical Methods in Engineering (CIMNE)en_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectCFRPen_UK
dc.subjectstrength predictionen_UK
dc.subjectfinite element analysisen_UK
dc.subjectvirtual testingen_UK
dc.subjectLaRC05en_UK
dc.subjectprogressive damageen_UK
dc.titleExperimental testing correlation with numerical meso-scale modelling of CFRP structures and the significance to virtual certification of airframesen_UK
dc.typeConference paperen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
meso-scale_modelling_of_CFRP_structures-2021.pdf
Size:
1.03 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)