Výsledky vyhledávání - "de Twj Tom Geus"

Competing damage mechanisms in a two-phase microstructure: How microstructure and loading conditions determine the onset of fracture

Autor: Rhj Ron Peerlings, de Twj Tom Geus, Mgd Marc Geers

Publikováno v: International Journal of Solids and Structures, 97-98, 687-698. Elsevier

This paper studies the competition of fracture initiation in the ductile soft phase and in the comparatively brittle hard phase in the microstructure of a two-phase material. A simple microstructural model is used to predict macroscopic fracture init

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f20b1aca5d6cb0e4388450420dec43e
https://doi.org/10.1016/j.ijsolstr.2016.03.029

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Fracture initiation in multi-phase materials: A systematic three-dimensional approach using a FFT-based solver

Autor: Mgd Marc Geers, Rhj Ron Peerlings, de Twj Tom Geus, Maeva Cottura, Benoît Appolaire

Publikováno v: Mechanics of Materials
Mechanics of Materials, Elsevier, 2016, 97, p. 199-211. ⟨10.1016/j.mechmat.2016.02.006⟩
Mechanics of Materials, 97, 199-211. Elsevier

This paper studies a two-phase material with a microstructure composed of a hard brittle reinforcement phase embedded in a soft ductile matrix. It addresses the full three-dimensional nature of the microstructure and macroscopic deformation. A large

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf2807b13ec7c8465dda78044500efb5
https://research.tue.nl/en/publications/67754335-294c-44d8-9df5-dce9944f8fed

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Predicting deformation-induced polymer-steel interface roughening and failure

Autor: Mgd Marc Geers, de Twj Tom Geus, van J Jeroen Beeck, Pjg Piet Schreurs, F Francesco Maresca

Publikováno v: European Journal of Mechanics. A, Solids, 55, 1-11. Elsevier

A novel integrated framework is presented for the prediction of deformation-induced interface roughening and failure in polymer-coated steels. Crystal plasticity is employed to predict the change in steel surface roughness in-situ. The steel substrat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ce3f290cb4825181eabed6cb76aefb1
https://doi.org/10.1016/j.euromechsol.2015.08.002

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Microstructural topology effects on the onset of ductile failure in multi-phase materials – A systematic computational approach

Autor: de Twj Tom Geus, Mgd Marc Geers, Rhj Ron Peerlings

Publikováno v: International Journal of Solids and Structures, 67-68, 326-339. Elsevier

Multi-phase materials are key for modern engineering applications. They are generally characterized by a high strength and ductility. Many of these materials fail by ductile fracture of the, generally softer, matrix phase. In this work we systematica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60517f39e2421321ba4e620c47bf49cc
https://doi.org/10.1016/j.ijsolstr.2015.04.035

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Microstructural modeling of ductile fracture initiation in multi-phase materials

Autor: Rhj Ron Peerlings, Mgd Marc Geers, de Twj Tom Geus

Publikováno v: Engineering Fracture Mechanics, 147, 318-330. Elsevier

The precise mechanisms underlying the failure of multi-phase materials may be strongly dependent on the material’s microstructural morphology. Micromechanical modeling has provided much insight into this dependence, but uncertainties remain about c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::151ef6339de6dc4076cf301f1c9aafd9
http://arxiv.org/abs/1604.03811

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Microscopic plasticity and damage in two-phase steels: on the competing role of crystallography and phase contrast

Autor: Mgd Marc Geers, Rhj Ron Peerlings, de Twj Tom Geus, F Francesco Maresca

Publikováno v: Mechanics of Materials, 101, 147-159. Elsevier

This paper unravels micromechanical aspects of metallic materials whose microstructure comprises grains of two or more phases. The local plastic response is determined by (i) the relative misorientation of the slip systems of individual grains, and (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8c8ada20f8333cc751a0a455eb0a320
http://arxiv.org/abs/1603.05847

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Systematic and objective identification of the microstructure around damage directly from images

Autor: Chaowei Du, de Twj Tom Geus, Rhj Ron Peerlings, Jpm Johan Hoefnagels, Mgd Marc Geers

Publikováno v: Scripta Materialia, 113, 101-105. Elsevier

An original experimental approach is presented to automatically determine the average phase distribution around damage sites in multi-phase materials. An objective measure is found to be the average intensity around damage sites, calculated using man

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b32aac5fd1de66117d3119ddfd09785b
https://research.tue.nl/nl/publications/85c5801d-845b-40ef-89e7-7e25a36d0e02

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Fracture in multi-phase materials: why some microstructures are more critical than others

Autor: de Twj Tom Geus, Rhj Ron Peerlings, Mgd Marc Geers

Publikováno v: Engineering Fracture Mechanics, 169, 354-370. Elsevier

Our goal is to unravel the mechanisms that lead to failure of a ductile two-phase material – that consists of a ductile soft phase and a relatively brittle hard phase. An idealized microstructural model is used to study damage propagation systemati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fef18fd2cab32daefb941aef6e0a8f7d

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