- Title
- Failure behaviour of sandwich composites made of perlite/sodium silicate foam core and paper as skin under flexural loading
- Creator
- Arifuzzaman, Md.; Kim, Ho Sung
- Relation
- The 10th International Conference on Structural Integrity and Failure (SIF16). Proceedings of The 10th International Conference on Structural Integrity and Failure: Advances in Materials and Structures (Adelaide, S.A. 13-14 July, 2016) p. 55-59
- Publisher
- The University of Adelaide and Australian Fracture Group
- Resource Type
- conference paper
- Date
- 2016
- Description
- Flexural behaviour of sandwich composites made of expanded perlite/sodium silicate foam core and Brown paper as skin is studied. Flexural properties such as flexural strength, core shear strength and stiffness were found to increase with increasing binder content in perlite core and compaction ratio for core manufacture. A threshold condition, however, for reinforcing effect exists according to a hypothesis test depending on combination of binder content in perlite core and compaction ratio. Failure mechanisms under flexural loading are discussed in relation with force versus displacement curves. Cracking was found to initiate from mid-plane of sandwich core approximately 45° with the loading direction indicating it is in fracture mode I. The sequence of failure was in the following order: core cracking first, delamination, and then skin paper.
- Subject
- expanded perlite; sodium silicate; paper skin; sandwich composites; foam; flexural strength; flexural stiffness; core shear
- Identifier
- http://hdl.handle.net/1959.13/1346189
- Identifier
- uon:29803
- Language
- eng
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