Sökning: onr:"swepub:oai:DiVA.org:kth-237213" >
An experimental and...
An experimental and numerical study of the effect of some manufacturing defects
-
- Andre, Alann (författare)
- RISE,SICOMP
-
- Norrby, Monica (författare)
- KTH,Lättkonstruktioner,KTH Royal Institute of Technology, Stockholm
-
- Åkermo, Malin, 1969- (författare)
- KTH,Lättkonstruktioner,KTH Royal Institute of Technology, Sweden
-
visa fler...
-
- Nilsson, S. (författare)
- RISE,SICOMP
-
- Nyman, Teresia (författare)
- KTH
-
- Nyman, Tonny (författare)
- KTH Royal Institute of Technology, Sweden; Saab, Sweden
-
visa färre...
-
(creator_code:org_t)
- International Committee on Composite Materials, 2013
- 2013
- Engelska.
-
Ingår i: ICCM International Conferences on Composite Materials. - : International Committee on Composite Materials. ; , s. 4105-4112
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- During the manufacturing process of composite structural parts, layer of fabrics or unidirectional prepreg may have to be cut in order to fulfil production requirements. From a general mechanical point of view, cutting fibres in a composite part has a large negative impact on the mechanical properties. However, such interventions are necessary in particular cases, for example due to draping of complex geometries. A rather extensive test program was launched to investigate the effects of defects that typically could arise during manufacturing. The overall purpose of the test program was to determine knock-down factors on strength for typical manufacturing defects that occasionally arise and sometimes are hard to avoid in production: cuts/gaps and fibre angle deviations. Four types of specimens were tested, reference, intersection of cuts in adjacent layers combined with a bolt hole, cut in a zero degree ply combined with a bolt hole and specimens with misaligned fibres. The specimens with misaligned fibres were tested with three different fibre angles. In addition to the experimental procedure, FE-analyses utilising cohesive elements were conducted, and after mechanical tests, Non Destructive Investigation (NDI) and fractographic investigations were performed. An excellent correlation between analyses and experiments were obtained.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- Experimental
- Fractographic investigation
- Manufacturing defect
- Numerical analysis
- SRA - Production
- SRA - Produktion
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)