Dynamic analysis of multilayer GFRP sandwich slabs with interlayer delaminations
Paper
Jayatilake, Indunil N., Karunasena, Warna and Lokuge, Weena. 2014. "Dynamic analysis of multilayer GFRP sandwich slabs with interlayer delaminations." Sabu, John and Das, Raj (ed.) 8th Australasian Congress on Applied Mechanics (ACAM 8). Melbourne, Australia 24 - 28 Nov 2014 Australia.
| Paper/Presentation Title | Dynamic analysis of multilayer GFRP sandwich slabs with interlayer delaminations |
|---|---|
| Presentation Type | Paper |
| Authors | Jayatilake, Indunil N. (Author), Karunasena, Warna (Author) and Lokuge, Weena (Author) |
| Editors | Sabu, John and Das, Raj |
| Journal or Proceedings Title | Proceedings of the 8th Australasian Congress on Applied Mechanics (ACAM 8) |
| ERA Conference ID | 42491 |
| Number of Pages | 9 |
| Year | 2014 |
| Place of Publication | Australia |
| ISBN | 9781922107350 |
| Conference/Event | 8th Australasian Congress on Applied Mechanics (ACAM 8) |
| Australasian Congress on Applied Mechanics | |
| Event Details | Australasian Congress on Applied Mechanics Rank A A A A A A A A A A A A A A A A A A A A A A |
| Event Details | 8th Australasian Congress on Applied Mechanics (ACAM 8) Event Date 24 to end of 28 Nov 2014 Event Location Melbourne, Australia |
| Abstract | A structural composite multilayer slab can be manufactured by gluing two or more composite sandwiches together to form a laminated composite. The dynamic behaviour of these multilayer composite structures is an important technological area to be investigated and understood if these materials are to be used efficiently. Interlayer delamination is one of the major failure modes which endanger the reliability of composite structures. Delamination can grow in size under increasing loads and with time and hence render the laminate structurally useless. In particular, delamination may reduce the natural frequency which in turn may result in resonance. The current research study concentrates on investigating the free vibration behaviour of fibre composite multilayer sandwich slabs with interlayer delaminations. A parametric investigation is carried out to assess the influence of various parameters of concern on the free vibration behaviour, using the finite element package Strand7. Furthermore, selected points in the delaminated region are connected appropriately to simulate bolting as a remedial measure to reduce the effect of delamination. Layers within the two delaminated regions are connected by 'master slave links' to allow for sliding in a horizontal plane between the two adjacent delaminated regions but in contact with each other in the vertical direction. First order shear deformation theory based plate elements in Strand7 are used to model each sandwich layer. It is observed from analyses that delamination causes reduction in natural frequency and generally the variation becomes more significant as the mode number increases. It is also revealed that bolting the delaminated region can significantly reduce the natural frequency variation due to delamination thus improving the dynamic performance. |
| Keywords | fibre composite multilayer slab; dynamic analysis; free vibration behaviour; delamination |
| ANZSRC Field of Research 2020 | 400505. Construction materials |
| 401602. Composite and hybrid materials | |
| 401702. Dynamics, vibration and vibration control | |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
| Institution of Origin | University of Southern Queensland |
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Gunasekara, Chamila, Atzarakis, Peter, Lokuge, Weena, Law, David W. and Setunge, Sujeeva. 2021. "Novel analytical method for mix design and performance prediction of high calcium fly ash geopolymer concrete." Polymers. 13 (6). https://doi.org/10.3390/polym13060900Design of Alkali-Activated Slag-Fly Ash Concrete Mixtures Using Machine Learning
Gunasekara, C., Lokuge, W., Keskic, M., Raj, N., Law, D. W. and Setunge, S.. 2020. "Design of Alkali-Activated Slag-Fly Ash Concrete Mixtures Using Machine Learning." ACI Materials Journal. 117 (5), pp. 263-278. https://doi.org/10.14359/51727019Characteristics, strength development and microstructure of cement mortar containing oil-contaminated sand
Abousnina, Rajab, Manalo, Allan, Ferdous, Wahid, Lokuge, Weena, Benabed, Benchaa and Al-Jabri, Khalifa Saif. 2020. "Characteristics, strength development and microstructure of cement mortar containing oil-contaminated sand." Construction and Building Materials. 252, pp. 1-13. https://doi.org/10.1016/j.conbuildmat.2020.119155Performance of Bridges with Damaged Elements in Extreme Flood Events
Lokuge, W., Fraser, C. and Karunasena, W.. 2020. "Performance of Bridges with Damaged Elements in Extreme Flood Events." Wang, Chien Ming, Ho, Johnny C.M. and Kitipornchai, Sritawat (ed.) 25th Australasian Conference on Mechanics of Structures and Materials (ACMSM25). Brisbane, Australia 04 - 07 Dec 2018 Singapore. https://doi.org/10.1007/978-981-13-7603-0_40Numerical Investigation on Hollow Pultruded Fibre Reinforced Polymer Tube Columns
Al-Saadi, A.U., Aravinthan, T. and Lokuge, W.. 2020. "Numerical Investigation on Hollow Pultruded Fibre Reinforced Polymer Tube Columns." Wang, Chien Ming, Ho, Johnny C.M. and Kitipornchai, Sritawat (ed.) 25th Australasian Conference on Mechanics of Structures and Materials (ACMSM25). Brisbane, Australia 04 - 07 Dec 2018 Singapore. https://doi.org/10.1007/978-981-13-7603-0_45Floodway Design Process Revisted
Greene, I., Lokuge, W. and Karunasena, W.. 2020. "Floodway Design Process Revisted." Wang, Chien Ming, Ho, Johnny C.M. and Kitipornchai, Sritawat (ed.) 25th Australasian Conference on Mechanics of Structures and Materials (ACMSM25). Brisbane, Australia 04 - 07 Dec 2018 Singapore. https://doi.org/10.1007/978-981-13-7603-0_94Flexural Behavior of Functionally Graded-Graphene Reinforced Composite Plates
Rasappagari, M.R.R., Karunasena, W. and Lokuge, W.. 2020. "Flexural Behavior of Functionally Graded-Graphene Reinforced Composite Plates." Wang, Chen Ming, Ho, Johnny C.M. and Kitipornchai, Sritawat (ed.) 25th Australasian Conference on Mechanics of Structures and Materials (ACMSM25). Brisbane, Australia 04 - 07 Dec 2018 Singapore. https://doi.org/10.1007/978-981-13-7603-0_22Rehabilitation of timber bridge piles using a wrapping system
Borzou, R. and Lokuge, W.. 2018. "Rehabilitation of timber bridge piles using a wrapping system." Powers, Nigel, Frangopol, Dan M., Al-Mahaidi, Riadh and Caprani, Colin (ed.) 9th International Conference on Bridge Maintenance, Safety and Management (IABMAS 2018). Melbourne, Australia 09 - 13 Jul 2018 London, United Kingdom. https://doi.org/10.1201/9781315189390-281Structural design of floodways under extreme flood loading
Greene, Isaac, Lokuge, Weena and Karunasena, Warna. 2020. "Structural design of floodways under extreme flood loading." International Journal of Disaster Resilience in the Built Environment. 11 (4), pp. 535-555. https://doi.org/10.1108/IJDRBE-10-2019-0072A New Design-Oriented Model of Glass Fiber-Reinforced Polymer-Reinforced Hollow Concrete Columns
Alajarmeh, O. S., Manalo, A. C., Benmokrane, B., Karunasena, W., Ferdous, W. and Mendis, P.. 2020. "A New Design-Oriented Model of Glass Fiber-Reinforced Polymer-Reinforced Hollow Concrete Columns." ACI Structural Journal. 117 (2), pp. 141-156. https://doi.org/10.14359/51720204Vulnerability assessment of bridges subjected to extreme cyclonic events
Pathiranage, Thilini and Lokuge, Weena. 2020. "Vulnerability assessment of bridges subjected to extreme cyclonic events." Natural Hazards. 102 (1), pp. 401-417. https://doi.org/10.1007/s11069-020-03931-yFlexural behaviour of concrete slabs reinforced with GFRP bars and hollow composite reinforcing systems
Al-Rubaye, Mohammed, Manalo, Allan, Alajarmeh, Omar, Ferdous, Wahid, Lokuge, Weena, Benmokrane, Brahim and Edoo, Azam. 2020. "Flexural behaviour of concrete slabs reinforced with GFRP bars and hollow composite reinforcing systems." Composite Structures. 236, pp. 1-12. https://doi.org/10.1016/j.compstruct.2019.111836Out-of-grade sawn pine: A state-of-the-art review on challenges and new opportunities in cross laminated timber (CLT)
Cherry, Rebecca, Manalo, Allan, Karunasena, Warna and Stringer, Geoff. 2019. "Out-of-grade sawn pine: A state-of-the-art review on challenges and new opportunities in cross laminated timber (CLT) ." Construction and Building Materials. 211, pp. 858-868. https://doi.org/10.1016/j.conbuildmat.2019.03.293Joint strength of single-bolted pultruded GFRP square hollow sections with mechanical inserts under elevated temperatures
Hizam, R. M., Manalo, Allan C., Karunasena, Warna and Bai, Yu. 2020. "Joint strength of single-bolted pultruded GFRP square hollow sections with mechanical inserts under elevated temperatures." Journal of Composites for Construction. 24 (1), pp. 1-15. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000984.Flexural behavior of geopolymer-concrete beams longitudinally reinforced with GFRP and steel hybrid reinforcements
Maranan, G. B., Manalo, A. C., Benmokrane, B., Karunasena, W., Mendis, P. and Nguyen, T. Q.. 2019. "Flexural behavior of geopolymer-concrete beams longitudinally reinforced with GFRP and steel hybrid reinforcements." Engineering Structures. 182, pp. 141-152. https://doi.org/10.1016/j.engstruct.2018.12.073Floodways and Flood-Related Experiences: A Survey of Industry Experts and Asset Owners
Greene, I., Lokuge, W. and Karunasena, K.. 2020. "Floodways and Flood-Related Experiences: A Survey of Industry Experts and Asset Owners." Engineering for Public Works. 19, pp. 69-75.3D Numerical Simulation and Dynamic Analyses of Debonded GFRP Composite Slabs
Jayatilake, I. N. and Karunasena, W.. 2020. "3D Numerical Simulation and Dynamic Analyses of Debonded GFRP Composite Slabs." 25th Australasian Conference on the Mechanics of Structures and Materials (ACMSM25). Brisbane, Australia 01 - 01 Dec 2018 Singapore. Springer. https://doi.org/10.1007/978-981-13-7603-0_8Hollow concrete columns: review of structural behavior and new designs using GFRP reinforcement
Alajarmeh, O. S., Manalo, A. C., Benmokrane, B., Karunasena, K., Ferdous, W. and Mendis, P.. 2020. "Hollow concrete columns: review of structural behavior and new designs using GFRP reinforcement." Engineering Structures. 203, pp. 1-16. https://doi.org/10.1016/j.engstruct.2019.109829Effect of spiral spacing and concrete strength on behavior of GFRP-reinforced hollow concrete columns
Alajarmeh, Omar S., Manalo, Allan C., Benmokrane, Brahim, Karunasena, Warna and Mendis, Priyan. 2020. "Effect of spiral spacing and concrete strength on behavior of GFRP-reinforced hollow concrete columns." Journal of Composites for Construction. 24 (1), pp. 1-14. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000987Axial performance of hollow concrete columns reinforced with GFRP composite bars with different reinforcement ratios
Alajarmeh, Omar S., Manalo, Allan C., Benmokrane, Brahim, Karunasena, Warna and Mendis, Priyan. 2019. "Axial performance of hollow concrete columns reinforced with GFRP composite bars with different reinforcement ratios." Composite Structures. 213 (1), pp. 153-164. https://doi.org/10.1016/j.compstruct.2019.01.096Compressive behavior of axially loaded circular hollow concrete columns reinforced with GFRP bars and spirals
Alajarmeh, O. S., Manalo, A. C., Benmokrane, B., Karunasena, W., Mendis, P. and Nguyen, K. T. Q.. 2019. "Compressive behavior of axially loaded circular hollow concrete columns reinforced with GFRP bars and spirals." Construction and Building Materials. 194, pp. 12-23. https://doi.org/10.1016/j.conbuildmat.2018.11.016