UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

More information is available at Theses and Dissertations at University of Maryland Libraries.

Browse

Filters

20111

Settings

Author: search.filters.author.Musurapakam Virakthi, Ananth KumarSubject: search.filters.subject.Compressive stiffness

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Stiffness and Strength of K-Cor Sandwich Structures under Compression and Shear Loading Conditions
    (2011) Musurapakam Virakthi, Ananth Kumar; Lee, Sung W; Aerospace Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Pin reinforced sandwich cores, with composite facesheets, offer a great means of structural construction owing to their low weight and high stiffness and strength. In this research, FE models have been developed to obtain their stiffness and strengths under compressive and shear loading conditions. Computationally obtained values have been compared with experimental results for various sandwich specimens. Since the pins have a high modulus, and the facesheets have a low modulus, the pins penetrate into the facesheets. The pin-facesheet interaction then becomes important in determining the stiffness of the sandwich structures. The effect of adhesive layer yielding on the stiffness of the structure is analyzed. Geometrically non-linear models for the reinforcing pins have been developed to study their behavior at critical loads. Different parameters affecting the compressive and shear stiffness and strengths have been investigated.