نتایج جستجو برای: low velocity impact
تعداد نتایج: 1999830 فیلتر نتایج به سال:
Fibre-reinforced composite materials are widespread in lightweight, high-performance applications. However, polymeric composites generally exhibit a brittle behaviour, which makes them susceptible to impact damage. Even low-velocity impacts can produce delaminations, cause substantial reduction of the compressive mechanical properties. Metallic layers have been embedded laminates with aim impro...
Impact experiments of thick fabric carbon/epoxy laminate specimens, with small thickness ratio, are conducted at distinct energy levels and thicknesses to characterise the damage process. These specimens loading conditions representative a new generation critical structural components in aviation, such as wing spars, landing gear beams fittings, that increasingly being made entirely from compos...
This paper presents the results of an experimental study on the low-velocity impact behavior of foam-core sandwich panels. Panels with PUR foam core and plain weave carbon fabric laminated face-sheets were subjected to low-velocity impact with hemispherical steel impactors of di erent diameters at various energy levels. Digital image correlation (DIC) technique (ARAMIS software) was used to mea...
The present study was conducted to examine the impact of cage aquaculture on benthic communities in coastal areas (depth 25 to 50 m) from fish farming operations located along the southeastern Black Sea (Ordu-Perşembe, Trabzon-Yomra and Rize central). Sampling was conducted seasonally from April 2007 to 2009. Sediment samples were taken using Ekman Grab (box core- 0.04 m2). Temperature, salinit...
In the present paper, three-dimensional numerical analysis of low-velocity impact of rectangular sandwich plates with fiber metal laminate (FML) face sheets is investigated. In contrast to the available models which have used the approximate plate theories, a 3D finite element simulation is utilized for extracting the impact responses based on the elasticity theory. Finally, the effects...
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