Coupling of 2D discretized Peridynamics with a meshless method based on classical elasticity using switching of nodal behaviour. Issue 5 (3rd July 2017)

• Record Type: Journal Article
• Authors: Shojaei, Arman; Zaccariotto, Mirco; Galvanetto, Ugo
• Is Part Of: Engineering computations. Volume 34:Issue 5(2017)
• Page Start: 1334
• Page End: 1366
• Publication Date: 2017-07-03
• Subjects: Meshless -- Coupling -- Nonlocal theory -- Peridynamics -- Surface effect -- Switching technique; Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-03-2016-0078
• Languages: English
• ISSNs: 0264-4401

Abstract

Abstract : Purpose: The paper aims to use a switching technique which allows to couple a nonlocal bond-based Peridynamic approach to the Meshless Local Exponential Basis Functions (MLEBF) method, based on classical continuum mechanics, to solve planar problems. Design/methodology/approach: The coupling has been achieved in a completely meshless scheme. The domain is divided in three zones: one in which only Peridynamics is applied, one in which only the meshless method is applied and a transition zone where a gradual transition between the two approaches takes place. Findings: The new coupling technique generates overall grids that are not affected by ghost forces. Moreover, the use of the meshless approach can be limited to a narrow boundary region of the domain, and in this way, it can be used to remove the "surface effect" from the Peridynamic solution applied to all internal points. Originality/value: The current study paves the road for future studies on dynamic and static crack propagation problems.