Damage Identification and Mechanical Assessment of Impacted Sandwich Composites

Sandwich composites are often subjected to low velocity impact, a random and thus feared type of loading. Vulnerability of sandwich materials under such an event depends on the skins and core structure and skin-core interfaces. The paper presents ways to identify the damage severity occurred during...

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Bibliographic Details
Published inProcedia engineering Vol. 188; pp. 178 - 185
Main Authors Constantin, Nicolae, Sandu, Marin, Sandu, Adriana, Găvan, Mircea
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2017
Subjects
bending after impact
infrared thermography
low velocity impact
residual mechanical performance
sandwich materials
infrared thermography
bending after impact
low velocity impact
residual mechanical performance
sandwich materials
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Summary:Sandwich composites are often subjected to low velocity impact, a random and thus feared type of loading. Vulnerability of sandwich materials under such an event depends on the skins and core structure and skin-core interfaces. The paper presents ways to identify the damage severity occurred during low velocity impact tests, with further assessment of the residual mechanical performance of some kind of sandwich composites. In this study, non-destructive inspections (NDI) have been mixed with mechanical destructive testing in a comprehensive structural health monitoring (SHM) approach, meant to evaluate the damage tolerance of such materials, intended to be used on some structural components of a green energy power unit.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2017.04.472