Egidio Rizzi

TL;DR: In this article, a new model is presented for a physically consistent description of plastic material instabilities referred to as Portevin-Le Chatelier (PLC) effect, namely the oscillatory plastic flow that may be observed in metallic alloys subjected to load-or displacement-controlled plastic deformation in a certain range of strain, strain rate and temperature.

TL;DR: In this paper, the authors proposed a new ''pseudo-logarithmic'' rate of damage, which has the advantage of exhibiting a simple and meaningful conjugate force with very convenient properties.

TL;DR: In this article, the results of a study concerning the mechanical behavior of a syntactic foam employed as core material for sandwich composite panels are presented and compared at the macroscopic scale.

TL;DR: In this paper, the main results of an experimental and numerical investigation on the mechanical behaviour of a composite sandwich primarily designed for naval engineering applications are presented; the skeleton of the sandwich is made of glass-fibre/polymer-matrix composites; their interior layers are connected with interwoven threads called piles which cross the sandwich core.

TL;DR: In this article, a multizone laser scanning extensometer is used to measure local strain along the main part of the specimen, in addition to the conventional measurement of stress serrations.