WebApr 1, 2012 · Pinch-and-swell structure and shear zones in viscoplastic layers. Two-dimensional finite element simulations are presented for the extension of stiff … Weblocalisation, pinch and swell structure evolution is influenced by the flow properties of all the layers (e.g. Schmalholz and Maeder, 2012; Smith, 1977). Viscous flow is assumed for post-failure flow and in its simplest form is described by PDA˙n; (1) where Pis the strain rate, ˙is differential stress, nis the
An experimental approach to wide-necked pinch-and-swell …
WebMay 1, 2008 · Pinch-and-swell structures form by continuous necking, while discrete boudins ( Ramberg, 1955, Pollard and Fletcher, 2005) form by either mode I fracture or mode II faulting, often after some continuous necking. Download : Download full-size image Fig. 1. Natural examples of pinch-and-swell structures. WebJul 1, 2016 · Pinch and swell structures occur where a more competent layer in a weaker matrix is subjected to layer-parallel extension. In this contribution, we use numerical … dwarf mulberry tree perth
Pinch and swell structures: evidence for strain localisation by …
WebExamples of boudinage and pinch-and-swell structures are described and the mechanisms of formation discussed. One-dimensional plastic compression and compensating one- or two-dimensional expansion of layered cakes of putty, plasticene, and cheese result in … WebApr 1, 1992 · The development of pinch-and-swell in the experimental models involves widening of neck zones by propagation of the neck fronts in the extension direction. Both … WebPinch and swell structures, also called drawn or necked boudins, are a subset of boudins that retain continuity of the drawn layers (Fig. 1a and b). These pinch and swell structures have been reported from a large variety of tectonic settings 5 and crustal levels (Arslan et al., 2008; Goscombe et al., 2004; Hobbs et al., 2010; Kenis dwarf multicannon osrs skin