A comparative evaluation of crashworthy sandwich structures

Autor: PITARRESI, Giuseppe, CARRUTHERS JJ, ROBINSON M, TORRE L, KENNY JM, INGLETON S, VALECELA O, FOUND M.
Přispěvatelé: Pitarresi, G., Carruthers, J., Robinson, M., Torre, L., Kenny, J., Ingleton, S., Valecela, O., Found, M.
Jazyk: angličtina
Rok vydání: 2007
Popis: This paper describes an experimental evaluation of the energy absorption properties of a series of novel designs for cost-effective crashworthy composite sandwich structures. All the designs are based on the concept of the "tied-core" sandwich, i.e. the use of additional core reinforcements that act to tie the opposing facings of a sandwich together, thus preventing catastrophic failure under edgewise loading. The design, manufacture and crush testing of hollow rectangular tubes fabricated from six different tied-core concepts is described. Factors that are shown to promote high energy absorption include large, continuous areas of contact between the facings and the ties, non-thin sandwich facings, strong corners reinforced with continuous hoop fibres, and the use of an appropriate collapse trigger mechanism.
Databáze: OpenAIRE