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http://dx.doi.org/10.7734/COSEIK.2018.31.6.373

Peridynamic Impact Fracture Analysis of Multilayered Glass with Nonlocal Ghost Interlayer Model  

Ha, Youn Doh (Department of Naval Architecture and Ocean Engineering, Kunsan National Univ.)
An, Tae Sick (Department of Naval Architecture and Ocean Engineering, Kunsan National Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.31, no.6, 2018 , pp. 373-380 More about this Journal
Abstract
We present the peridynamic dynamic fracture analysis to solve impact fracturing of multilayered glass impacted by a high-velocity object. In the most practical multilayered glass structures, main layers are glued by thin elastic masking films. Thus, it is difficult and expensive to construct the numerical model for such a multilayered structure. In this paper, we employ efficient numerical modeling of multilayered structures with a nonlocal ghost interlayer model in which ghost particles are distributed between main layers and they are interacting with each other in peridynamic way. We also consider a simple nonlocal contact condition in peridynamic frameworks to solve impact and penetration of the high-velocity impactor to the multilayered structure. Finally we can confirm the fracture capabilities of the method using a multilayered glass model in which 7 glass layers and a single elastic backing layer are affixed by polyvinyl butyral films.
Keywords
peridynamics; multilayered glass; nonlocal ghost interlayer model; impact fracturing;
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