Honeycomb Core Crush In Sandwich Structure Analysis And Process Improvement Research

In recent decades, honeycomb sandwich structure composite material in aviationfield components are increasingly replacing the metal material and played a huge role.Honeycomb sandwich structure due to the density is small, can significantly reducethe structure weight, high specific strength and specific stiffness, and its anisotropyperformance is strong, can carry on the design and manufacture according to thespecial requirements, has outstanding advantages compared with other materials andstructures.Although the honeycomb core composite board has long been applied in theaerospace industry, but the structure remains high rejection rate and the rejection rateof the problem, and thus produce a large number of useless waste, had a negativeimpact on manufacturing economy. Portion of the core in the curing process ofcomposite material parts collapse deformation was the industry known as the "corecollapse", is a composite board was rejected after curing honeycomb core of commoncause.This article system to cause collapse collapse honeycomb core in honeycombsandwich structure, system study on the mechanism of the prevention and the way tostop the collapse of the core are analyzed and summarized, the collapse of thehoneycomb core, testing and repair of honeycomb sandwich structure formanufacturing high quality to provide a theoretical basis, but also to improve theservice life of the honeycomb sandwich structure, reduce the cost to provide thereference.