6533b86cfe1ef96bd12c80b2

RESEARCH PRODUCT

Evaluation of aging behavior under salt-fog spray conditions of green sandwich structures

Antonino ValenzaT. ScaliciVincenzo Fiore

subject

Agglomerate corkMaterials scienceflaxMaterials Science (miscellaneous)sandwichSalt (chemistry)salt-fogCore (manufacturing)02 engineering and technology010501 environmental sciencesCorkengineering.material01 natural sciencesAging resistancemechanical propertieComposite materialSettore ING-IND/04 - Costruzioni E Strutture Aerospaziali0105 earth and related environmental scienceschemistry.chemical_classificationaging021001 nanoscience & nanotechnologySettore ING-IND/02 - Costruzioni E Impianti Navali E MariniSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryAgglomerateengineering0210 nano-technologySettore ICAR/08 - Scienza Delle Costruzioni

description

In this paper, the aging resistance of sandwich structures made with cork agglomerate as core and flax-reinforced polymeric laminates as face sheets was investigated for the first time. In order to evaluate their durability in a hostile environment, a sandwich plate was manufactured by vacuum bagging technique and aged under salt-fog spray conditions, according to ASTM B 117 standard. The evolution of the sandwich mechanical properties during the aging exposition was analyzed by carrying out quasi-static flexural tests and Charpy impact tests both on unaged specimens and on specimens aged for 10, 25, and 60 days, respectively. The quasi-static experimental results showed that despite the salt-fog exposition leads to clear decrements in both maximum strength and modulus, the deformation capability of the sandwich structure evidences a noticeable improvement. According to this last result, it was found that the impact strength of the sandwich specimens was clearly increased after the salt-fog exposition evidencing that the studied green sandwich maintains good toughness properties in a hostile environment such as marine.

yearjournalcountryeditionlanguage
2018-02-28
10.1080/15440478.2018.1444530http://hdl.handle.net/10447/279635