High Heat Resistance Can Be Deceiving: Dripping Behavior of Polyamide 4.6 in Fire

Autor: Analice Turski Silva Diniz, Julio Marcelo Marti, Bernhard Schartel

Publikováno v: Macromolecular Materials and Engineering, Vol 308, Iss 10, Pp n/a-n/a (2023)

Abstract Polyamide 4.6 (PA46) is a high‐heat‐resistant polymer, but it has no dripping resistance under fire. Three commercial grades of PA46 are investigated under UL 94 vertical fire test conditions. Their performances are discussed based on th

Externí odkaz: https://doaj.org/article/51d2fed90ea1451e8ab96b6dc0d98152

An explicit–implicit finite element model for the numerical solution of incompressible Navier–Stokes equations on moving grids

Autor: Julio Marcelo Marti, Pavel Ryzhakov

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Scipedia Open Access
Scipedia SL

In this paper an efficient mesh-moving Finite Element model for the simulation of the incompressible flow problems is proposed. The model is based on a combination of the explicit multi-step scheme (Runge–Kutta) with an implicit treatment of the pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8612a5f13be7ce888cf5b75962391a4
https://www.scipedia.com/public/Ryzhakov_Marti_2019a

Numerical Simulation of Flame Retardant Polymers Using a Combined Eulerian–Lagrangian Finite Element Formulation

Autor: De-Yi Wang, Julio Marcelo Marti, Jimena de la Vega, Eugenio Oñate

Publikováno v: Applied Sciences
Volume 11
Issue 13
Applied Sciences, Vol 11, Iss 5952, p 5952 (2021)

Many polymer-made objects show a trend of melting and dripping in fire, a behavior that may be modified by adding flame retardants (FRs). These affect materials properties, e.g., heat absorption and viscosity. In this paper, the effect of a flame ret

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81ef4417b1b027bdbe5e8f5597bdefc1
https://doi.org/10.3390/app11135952

Interaction between an elastic structure and free-surface flows: experimental versus numerical comparisons using the PFEM

Autor: Antonio Souto-Iglesias, Julio Marcelo Marti, Sergio Idelsohn, Eugenio Oñate

Publikováno v: Computational Mechanics-International Journal then Research Journal-, ISSN 0178-7675, 2008-12, Vol. 43, No. 1
Archivo Digital UPM
Universidad Politécnica de Madrid
Recercat. Dipósit de la Recerca de Catalunya
instname
Scipedia Open Access
Scipedia SL
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The final publication is available at Springer via http://dx.doi.org/10.1007/s00466-008-0245-7 The paper aims to introduce new fluid–structure interaction (FSI) tests to compare experimental results with numerical ones. The examples have been chose

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e38ae12684d4482b8c093ce949985f61
https://www.scipedia.com/public/Idelsohn_et_al_2018f

Fast fluid–structure interaction simulations using a displacement-based finite element model equipped with an explicit streamline integration prediction

Autor: Julio Marcelo Marti, Eugenio Oñate, Sergio Idelsohn, Pavel Ryzhakov

Publikováno v: Scipedia Open Access
Scipedia SL
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

We propose here a displacement-based updated Lagrangian fluid model developed to facilitate a monolithic coupling with a wide range of structural elements described in terms of displacements. The novelty of the model consists in the use of the explic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::967d658d71714983a5ae8265d197b8b2
https://hdl.handle.net/2117/185482