New article: Peter Grassl. "3D lattice meso-scale modelling of the effect of lateral compression on tensile fracture processes in concrete", Accepted in International Journal of Solids and Structures, December 2022.
DOI (Open access)
Euro-C 2022 conference: Peter Grassl presented the group's work on rate dependence of damage plasticity models at Euro-C 2022 conference in Vienna, Austria. See publications for more info.
UKACM2022 conference: Ismail Aldellaa, Xiaowei Liu, Chao Zhou, Gumaa Abdelrhim, Ifiok Ekop and Peter Grassl presented their research at the UKACM-2022 conference in Nottingham. See publications for the extended abstracts.
New article: Ismail Aldellaa, Petr Havlásek, Milan Jirásek, Peter Grassl. "Effect of Creep on Corrosion-Induced Cracking", Accepted in Engineering Fracture Mechanics, February 2022.
DOI || Preprint
Peter Grassl delivered a plenary lecture at the 2nd International Symposium on Notch Mechanics in Madrid Spain in September 2021.
Ismail Aldellaa presented his work on influence of creep on corrosion at Biot-Bazant conference in June 2021.
Abstract
Ismail Aldellaa presented his work on influence of creep on corrosion induced cracking at UKACM in April 2021.
Abstract||Extended Abstract
Welcome to new PhD students Xiaowei Liu, Ifiok Ekop, Zhou Chao and Gummaa Abdelrhim, Autumn 2020.
Peter Grassl has joined the Editorial Board of International Solids and Structures, Sept. 2020.
Welcome to Meng student Matthew Pieroni for his individual project.
New article: Leppänen, M. Johansson and P. Grassl. "On the dynamic response of reinforced concrete beams subjected to drop weight impact", Accepted in Finite Elements in Analysis and Design, August 2020.
Preprint
New article: A. Sciegaj, P. Grassl, F. Larsson, K. Runesson, K. Lundgren. "Upscaling of three-dimensional reinforced concrete representative volume elements to effective beam and plate models", International Journal of Solids and Structures, Volume 202, Pages 835-853, October 2020.
DOI
New conference paper: P. Grassl and J. Middlemiss. "FE modelling of rebar laps in steel fibre reinforced concrete", SEMC 2019, Cape Town, South Africa.
Paper || Short presentation.
CDPM2 in Abaqus (Implementation provided by Seungwook Seok at Purdue University).
New conference paper: P. Grassl. "Modelling the dynamic response of concrete with the damage plasticity model CDPM2", Framcos-X, 2019, Bayonne, France.
DOI (open access) || Short presentation
Peter Grassl was elected to Fellow of IA-Framcos.
New conference paper: P. Grassl. "On the influence of fibres on tensile laps of reinforcement loops", UKACM 2019, London, England.
Paper || Short presentation.
Peter Grassl co-organised Framcos-X in Bayonne, France.
New article: P. Grassl, M. Jirásek and D. Gallipoli. "Initiation of fluid-induced fracture in a thick-walled hollow permeable sphere", European Journal of Mechanics - A/Solids, Volume 76, Pages 123-134, July-August 2019.
DOI || Preprint || Presentation from BIRS workshop 18w5085
New article: Athanasiadis I., Wheeler S. and Grassl P. "On the influence of cell size on network modelling of water retention and conductivity of geomaterials", Submitted, 2018.
Preprint
New article: P. Grassl and A. Antonelli. "3D network modelling of fracture processes in fibre-reinforced geomaterials", In press, 2018.
DOI|| Preprint
Plenary lecture at Euro-C 2018 conference: P. Grassl and A. Antonelli. "Network modelling of fracture processes in fibre-reinforced quasi-brittle materials".
Presentation || Reference
New article: I. Athanasiadis, S. Wheeler and P. Grassl. "Hydro-mechanical network modelling of particulate composites", International Journal of Solids and Structures, Vol. 130-131, Pages 49-60, 2018.
DOI (Open access) || Preprint
New article: P. Grassl, M. Johansson and J. Leppänen. "On the numerical modelling of bond for the failure analysis of reinforced concrete.", Engineering Fracture Mechanics, Vol. 189, Pages 13-26, 2018
DOI || Preprint || Input Files (Release 9.1)
New deadline for abstracts: 31st January 2018: Minisymposium on Coupled hydro-mechanical processes in geomaterials at the ECCM-ECFD 2018 in Glasgow.
Congratulations to Ignatios Athanasiadis for successfully defending his PhD and being awarded with a PhD prize!
New article: C. Fahy, S. Wheeler, D. Gallipoli and P. Grassl. "Corrosion induced cracking modelled by a coupled transport-structural approach." Cement and Concrete Research. Vol. 94, Pages 24-35, 2017
DOI (Open access)
New report on performance of CDPM2 for reinforced concrete: E. Lockhart: "Modelling the Failure of Reinforced Concrete Subjected to Dynamic Loading Using CDPM2 in LS-DYNA.", School of Engineering, University of Glasgow, 2017
Link to webpage
New article: I. Athanasiadis, S. Wheeler and P. Grassl. "Network Modelling of the Influence of Swelling on the Transport Behaviour of Bentonite." Geosciences. Vol. 6, Issue 4, Page 55, 2016.
DOI (Open access)
3D visualisation of the yield surface used in our model CDPM and CDPM2: YieldSurfaceCDPM
New paper: I. Athanasiadis, S. J. Wheeler and P. Grassl, "Network modelling of fluid retention behaviour in unsaturated soils", E3S Web Conf., 9, 11016, 2016.
DOI (Open access)
New paper: P. Grassl, J. Bolander. "Three-Dimensional Network Model for Coupling of Fracture and Mass Transport in Quasi-Brittle Geomaterials", Materials, 9, 782, 2016.
DOI (Open access)
Plenary lecture: Peter Grassl presented the paper "Transport-structural modelling of corrosion induced cracking" at Framcos-9 at Berkeley.
Paper || Short Presentation
New article: D. Xenos, P. Grassl. "Modelling the failure of reinforced concrete with nonlocal and crack band approaches using the damage-plasticity model CDPM2", Finite Elements in Analysis and Design.
DOI (Open access)
New article: P. Havlásek, P. Grassl and M. Jirásek. "Prediction of size effect on strength of quasi-brittle materials based on integral-type nonlocal models." Engineering Fracture Mechanics. Vol. 157, Pages 72-85, 2016.
DOI (Open access)
Invited lecture October 2015: Peter Grassl visited the University of Minnesota where he presented research on lattice modelling of fracture and transport as part of their Warren Lecture series.
September 2015: We attended Concreep 10 in Vienna where we presented to papers on lattice (DOI) and network (DOI) modelling.
New input files added to MAT_CDPM in LS-DYNA.
June 2015: Peter Grassl attended EMI-2015 and presented our paper "A hydro-mechanical lattice approach for modelling hydraulic fracture". You can have a look at the slides here PDF
Dimitrios Xenos defended successfully his PhD work on "Nonlocal modelling of fracture in heterogeneous quasi-brittle materials", July 2015.
New article: D. Xenos, D. Grégoire, S. Morel and P. Grassl. "Calibration of nonlocal models for tensile fracture in quasi-brittle heterogeneous materials." Journal of the Mechanics and Physics of Solids, In press, 2015.
DOI
New article: P. Grassl, C. Fahy, D. Gallipoli and S. J. Wheeler. "On a 2D hydro-mechanical lattice approach for modelling hydraulic fracture". Journal of the Mechanics and Physics of Solids. Volume 75, pp. 104-118, 2015.
DOI || Preprint
Two PhD positions available on Microcracking of concrete and Hydraulic fracturing
Caroline Fahy defended successfully her PhD work on "A discrete transport-mechanical approach for modelling the durability of concrete", November 2014.
Our constitutive model CDPM2 has been implemented in LS-DYNA (Material model 273 from rev. 91862).
New article: P. Grassl, D. Xenos, M. Jirásek and M. Horák. "Evaluation of nonlocal approaches for modelling fracture near nonconvex boundaries". International Journal of Solids and Structures. Volume 51, Issue 18, pp. 3239-3251, 2014.
DOI || Preprint
Three of our group attended Euro-C 2014 where we presented three papers:
Grassl P., Fahy S., Wheeler S. and Gallipoli D.: A 2D hydro-mechanical latice approach for modelling corrosion induced cracking of reinforced concrete.
Xenos D. and Grassl P.: Comparison of nonlocal and crack-band damage-plasticity approaches for modelling the failure of reinforced concrete structures.
Athanasiadis I., Wheeler S. and Grassl P.: Three-dimensional network modelling of the influence of microstructure of concrete on water transport.
New article "CDPM2: A damage-plasticity approach to modelling the failure of concrete". International Journal of Solids and Structures. Volume 50, Issue 24, November 2013, Pages 3805-3816.
March 2013: Co-organisation of minisymposium on Multi-scale investigation of concrete fracture by numerical and physical experimentation together with John Bolander and Gianluca Cusatis within FraMCoS-8
September 2012: PhD studentship on "Computational modelling of geo-engineered barriers of nuclear waste storage" is available. Have a look here for more details.
April 2012: New article on Meso-scale modelling of the size effect on the fracture process zone of concrete by Peter Grassl, David Gregoire, Laura Rojas Solano, Gilles Pijaudier-Cabot is available online. DOI
January 2012: Two PhD studentships on "Meso-mechanically based models for fibre reinforced concrete" and "Modelling of geo-engineered barriers of nuclear waste storage" are available. Have a look here for more details.
August 2011: The Concrete Damage-Plastic Model (CDPM) is implemented in the release version of OOFEM .
July 2011: The paper "Lattice modelling of corrosion induced cracking and bond in reinforced concrete" by Peter Grassl and Trevor Davies is available online
August 2010: Two PhD studentships on corrosion induced cracking of concrete and meso-mechanically based nonlocal models are available. Have a look here for more details.
January 2010: The paper "Meso-scale approach to modelling the fracture process zone of concrete subjected to uniaxial tension" by Peter Grassl and Milan Jirásek is available online.
January 2010: Misprints in the paper on "Damage-plastic model for concrete failure" by Peter Grassl and Milan Jirásek are corrected in the erratum (online November 2009).
December 2009: I have co-organised the Telford Advanced Research Workshop on Long-Term Behaviour of Concrete: Design and Validation, which took place on the 10th and 11th December 2009 in Glasgow.