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Experimental study into compression after impact strength of laminates with conventional and nonconventional ply orientations
- Source :
- Recercat. Dipósit de la Recerca de Catalunya, instname, © Composites Part B: Engineering, 2017, vol. 126, p. 133-142, Articles publicats (D-EMCI), DUGiDocs – Universitat de Girona
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- The quest for impact damage tolerant laminates by tailoring stacking sequences has led to nonconventional laminates whose ply sequences are not limited to 0, ±45 and 90°. Departing from the hypothesis that compression after impact (CAI) strength is impaired by the presence of delaminations, a ply sequence was defined by selecting the mismatch angles between plies so as to maintain a central sublaminate with no, or small, delaminations. An experimental test campaign was devoted to validate this hypothesis. To that purpose, baseline and blocked-ply laminates were included in the study. Specimens were tested under low velocity impact followed by compression according to ASTM standards. Delaminations were identified with Ultrasonic C-Scan. The results show delamination locations being successfully predetermined by controlling the mismatch angle, as well as the ensuing improvement in compressive strength retention after impact The authors acknowledge the financial support of the Spanish Ministerio de Ciencia e Innovación under the project MAT2015-69491-C3-1-R (MINECO/FEDER, UE)
- Subjects :
- Materials science
Assaigs de materials
02 engineering and technology
010402 general chemistry
01 natural sciences
Industrial and Manufacturing Engineering
Composite materials -- Delamination
Materials laminats
Laminated materials
Composite material
business.industry
Mechanical Engineering
Delamination
Materials -- Testing
Izod impact strength test
Structural engineering
021001 nanoscience & nanotechnology
Compression (physics)
0104 chemical sciences
Compressive strength
Mechanics of Materials
Ceramics and Composites
Ultrasonic sensor
0210 nano-technology
business
Materials compostos -- Deslaminatge
Subjects
Details
- ISSN :
- 13598368
- Volume :
- 126
- Database :
- OpenAIRE
- Journal :
- Composites Part B: Engineering
- Accession number :
- edsair.doi.dedup.....6a6e5ecd971d202d80e1db3dcf11af3e