Flexural testing and analysis of full-strain-fields in sandwich composites
The objective of this work was to characterize the full-field flexural behavior of composite sandwich beams. Finite element analysis was used to estimate the behavior of sandwich beams under three- and four-point-bending tests and were compared with experimental results obtained via digital image co...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2019-06-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2404 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841562788754882560 |
|---|---|
| author | Rosa Marat-Mendes Ricardo Martins Alexandre Garcia Luis Reis |
| author_facet | Rosa Marat-Mendes Ricardo Martins Alexandre Garcia Luis Reis |
| author_sort | Rosa Marat-Mendes |
| collection | DOAJ |
| description | The objective of this work was to characterize the full-field flexural behavior of composite sandwich beams. Finite element analysis was used to estimate the behavior of sandwich beams under three- and four-point-bending tests and were compared with experimental results obtained via digital image correlation and strain-gages. Two different core thicknesses and two different sandwich lengths were used to simulate short- and long-beam. Two distinct sandwich beams were fabricated by bonding basalt fiber reinforced polymer composite face sheets (laminates) to polyurethane core and aluminum face sheets glued to polyurethane core with an adhesive film. Full-strain-fields and flexural displacements were obtained by means of strain-gages and digital image correlation technique. Experimental results were in good agreement with predictions and digital image technique attested to be a complementary method to strain-gages in experimental full-strain-fields analysis. |
| format | Article |
| id | doaj-art-9caa3a8f671b4ed08173e4ba4ec30ef8 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-06-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-9caa3a8f671b4ed08173e4ba4ec30ef82025-01-03T00:40:24ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-06-011349Flexural testing and analysis of full-strain-fields in sandwich compositesRosa Marat-Mendes0Ricardo Martins1Alexandre Garcia2Luis Reis3Escola Superior Náutica Infante D. Henrique, Av. Eng. Bonneville Franco, 2770-058, Paço de Arcos, PortugalInstituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, PortugalInstituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, PortugalThe objective of this work was to characterize the full-field flexural behavior of composite sandwich beams. Finite element analysis was used to estimate the behavior of sandwich beams under three- and four-point-bending tests and were compared with experimental results obtained via digital image correlation and strain-gages. Two different core thicknesses and two different sandwich lengths were used to simulate short- and long-beam. Two distinct sandwich beams were fabricated by bonding basalt fiber reinforced polymer composite face sheets (laminates) to polyurethane core and aluminum face sheets glued to polyurethane core with an adhesive film. Full-strain-fields and flexural displacements were obtained by means of strain-gages and digital image correlation technique. Experimental results were in good agreement with predictions and digital image technique attested to be a complementary method to strain-gages in experimental full-strain-fields analysis.https://www.fracturae.com/index.php/fis/article/view/2404Composite sandwich beamsstrain-fieldsFEMDICVICstrain-gages |
| spellingShingle | Rosa Marat-Mendes Ricardo Martins Alexandre Garcia Luis Reis Flexural testing and analysis of full-strain-fields in sandwich composites Fracture and Structural Integrity Composite sandwich beams strain-fields FEM DIC VIC strain-gages |
| title | Flexural testing and analysis of full-strain-fields in sandwich composites |
| title_full | Flexural testing and analysis of full-strain-fields in sandwich composites |
| title_fullStr | Flexural testing and analysis of full-strain-fields in sandwich composites |
| title_full_unstemmed | Flexural testing and analysis of full-strain-fields in sandwich composites |
| title_short | Flexural testing and analysis of full-strain-fields in sandwich composites |
| title_sort | flexural testing and analysis of full strain fields in sandwich composites |
| topic | Composite sandwich beams strain-fields FEM DIC VIC strain-gages |
| url | https://www.fracturae.com/index.php/fis/article/view/2404 |
| work_keys_str_mv | AT rosamaratmendes flexuraltestingandanalysisoffullstrainfieldsinsandwichcomposites AT ricardomartins flexuraltestingandanalysisoffullstrainfieldsinsandwichcomposites AT alexandregarcia flexuraltestingandanalysisoffullstrainfieldsinsandwichcomposites AT luisreis flexuraltestingandanalysisoffullstrainfieldsinsandwichcomposites |