Experimental investigation of high velocity ice impacts on woven carbon/epoxy composite panels

Autor:	Hyonny Kim, Keith T. Kedward, Douglas A Welch
Rok vydání:	2003
Předmět:	Materials science Projectile Composite number Izod impact strength test Epoxy Kinetic energy Threshold energy Mechanics of Materials visual_art Ceramics and Composites Force dynamics visual_art.visual_art_medium Composite material Scaling
Zdroj:	Composites Part A: Applied Science and Manufacturing. 34:25-41
ISSN:	1359-835X
DOI:	10.1016/s1359-835x(02)00258-0
Popis:	Spherical-shaped ice simulating hailstones were projected onto woven carbon/epoxy composite panels to determine the damage resistance of thin-walled composite structures to ice impact, and to observe the resulting damage modes that occur over a wide range of velocity. To study the behavior of ice in isolation from the complex response of the composite panel targets, impacts onto a dynamic force measurement device were first conducted. These experiments show a linear relationship between the peak measured force and the projectile kinetic energy, regardless of projectile size. Composite panel impact experiments show a linear relationship between the kinetic energy at which failure initiates, referred to as the failure threshold energy (FTE), and the thickness of the panel. Impacts at kinetic energies greater than the FTE produced a multiplicity of damage modes. Glancing impact tests on composite panels show that the FTE can be accurately estimated using a simple trigonometric scaling relationship.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::66af272668750117ce9d982bb0e01ae8 https://doi.org/10.1016/s1359-835x(02)00258-0 Zobrazit plný text záznamu Full Text from ScienceDirect