In times of radical socio-technical change, system-level or transformative innovation (hereafter simply system innovation) is necessary in order to achieve, or maintain, economic prosperity, in ways compatible with environmental sustainability and a cohesive society. There is growing policy inte...
This report presents some notes on the treatment and elimination of redundant constraints and of the progressive penetration phenomenon in the hierarchic pinball-based (PINB) contact-impact model using the method of Lagrange Multipliers (LM) in EUROPLEXUS (also abbreviated as EPX). It also inves...
This report presents a series of numerical simulations, done by the EUROPLEXUS code [1], of experimental tests performed at the Norwegian University of Science and Technology (NTNU) about blast effects on tubular concrete (plain or reinforced) structures. These structures provide a simplified re...
This report presents a series of numerical simulations of flexible beams subjected to blast-like loading in the SIMLab Shock Tube Facility (SSTF) of the Norwegian University of Science and Technology (NTNU), Trondheim. The simulations are performed by the EUROPLEXUS computer code. Keywords: Fast...
This report explores a simplified approach to account for Fluid-Structure Interaction (FSI) effects on blast-loaded plates. Basically, the model estimates the effect of plate motion and deformation on the blast pressure acting on the plate. The basic ingredient of the model is the time history o...
In this report, a Material Flow Analysis (MFA) model was developed for the 2022 EU-27 plastic value chain. The MFA boundaries included all the key steps of the value chain from production to end-of-life and recycling, covering 9 sectors and 15 polymers. Specific plastic flows typically less expl...
In recent years, the increasing frequency and intensity of extreme weather events, such as floods, droughts, hurricanes, and heat waves, have underscored the urgent challenges posed by climate change. These events present significant risks to human lives, ecosystems and the global economy. As a ...
This report presents some further developments in the formulation and implementation of a new model for the simulation of rigid bodies in the EUROPLEXUS code....
This report presents some improvements in the EUROPLEXUS code concerning the treatment of shell contact by hierarchic pinballs with the penalty method, when side-on impact occurs between shells. The scope is to avoid the severe spurious penetrations that had been observed in some recent applicat...
This report presents a proposal for the re-organization of the implementation of coupled and decoupled links in the EUROPLEXUS code. In addition, the various force terms are better defined, especially in view of easier, clearer and more efficient post-processing....
