Effect of moisture on the nonlinear viscoelastic fracture behavior of polymer nanocompsites: a finite deformation phase-field model

Autor: Behrouz Arash, Wibke Exner, Raimund Rolfes

Publikováno v: Engineering with computers : an international journal for simulation-based engineering (2022), online first
Engineering with computers : an international journal for simulation-based engineering

The mechanisms underlying damage in high-performance polymer nanocomposites are remarkably affected by hygrothermal conditions. In this study, we develop a phase-field formulation to investigate the influence of hygrothermal conditions on the nonline

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53fb62dbd2d92997a91735caae54a2a5
https://doi.org/10.1007/s00366-022-01670-1

A finite deformation gradient-enhaced damage model for nanoparticle/polymer nanocomposites: An atomistically-informed multiscale approach

Autor: Behrouz Arash, Robin Unger, Wibke Exner, Raimund Rolfes

To analyze the experimentally observed failure process in nanoparticle/polymer nanocomposites, a variety of factors, including nonlocal characteristics of damage mechanism and nonlinear viscoelasticity, are required to be investigated. This work pres

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5134b2dfcdf0ccdcee8e23e3967f3cab
https://elib.dlr.de/141272/

A finite deformation phase-field fracture model for the thermo-viscoelastic analysis of polymer nanocomposites

Autor: Wibke Exner, Behrouz Arash, Raimund Rolfes

Publikováno v: Computer Methods in Applied Mechanics and Engineering. 381:113821

The prediction of failure processes in polymer nanocomposites requires accurately capturing different factors such as damage mechanisms, and temperature- and rate-dependent material characteristics. This work presents the development of a finite defo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e4fedd69826e8152728e1920ab7b03d
https://doi.org/10.1016/j.cma.2021.113821

Experimental and numerical study of the spring-in of angled brackets manufactured using different resins and fiber textiles

Autor: Alexander Bernath, Wibke Exner, Frank Henning, Christian Hühne, Fabian Groh

Publikováno v: Journal of composite materials, 53 (28-30), 4173-4188

Process-induced distortion of composite structures often leads to a violation of tolerances, making the assembly of components difficult and expensive. It therefore can inhibit a cost-effective mass production of high-performance composite structures

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61a4b809a560ec0fdb6720fddcfdd476
https://publikationen.bibliothek.kit.edu/1000096398/35990267

Non-linear viscoelasticity of epoxy resins: Molecular simulation-based prediction and experimental validation

Autor: Robin Unger, Wibke Exner, Behrouz Arash, Raimund Rolfes

Publikováno v: Polymer. 180:121722

The precise knowledge of the temperature-dependent non-linear viscoelastic material behaviour of polymers is of great importance for engineering applications. The present work is a contribution to meet the challenge of bridging the inherently differe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69d78899b146554a6a46b0f568429117
https://doi.org/10.1016/j.polymer.2019.121722