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A. Benallal

73
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Publications

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X-ray tomographic image post-processing and a new 2D LBM simulation for the determination of the porosity and the static airflow resistivity of an acoustic fibrous material

Pierre Lamary , Belisario N Huallpa , Flávio C Bannwart , Enio P de Deus , Ahmed Benallal
Applied Acoustics, 2020, 169, pp.107452. ⟨10.1016/j.apacoust.2020.107452⟩
Article dans une revue hal-03103044v1

A numerical study on ductile failure of porous ductile solids with rate-dependent matrix behaviour

Lars Edvard Blystad Dæhli , David Morin , Tore Borvik , Ahmed Benallal , Odd Sture Hopperstad
Journal of Applied Mechanics, 2019, pp.1-23. ⟨10.1115/1.4045524⟩
Article dans une revue hal-02411416v1

Effective behaviour of porous ductile solids with a non-quadratic isotropic matrix yield surface

Lars Edvard Blystad Dæhli , Odd Sture Hopperstad , Ahmed Benallal
Journal of the Mechanics and Physics of Solids, 2019, 130, pp.56-81. ⟨10.1016/j.jmps.2019.05.014⟩
Article dans une revue hal-02411379v1
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A thermo-elasto-viscoplastic constitutive model for polymers

Joakim Johnsen , Arild Holm Clausen , Frode Grytten , Ahmed Benallal , Odd Sture Hopperstad
Journal of the Mechanics and Physics of Solids, 2019, 124, pp.681-701. ⟨10.1016/j.jmps.2018.11.018⟩
Article dans une revue hal-03103080v1

On some features of the effective behaviour of porous solids with J 2 - and J 3 -dependent yielding matrix behaviour

Ahmed Benallal
Comptes Rendus Mécanique, 2018, 346 (2), pp.77 - 88. ⟨10.1016/j.crme.2017.11.002⟩
Article dans une revue hal-01717944v1

Anisotropic tensile failure of metals by the strain localization theory: An application to a high-strength aluminium alloy

D. Morin , M. Fourmeau , T. Børvik , Ahmed Benallal , O.S. Hopperstad
European Journal of Mechanics - A/Solids, 2018, 69, pp.99 - 112. ⟨10.1016/j.euromechsol.2017.11.015⟩
Article dans une revue hal-01717958v1

On the description of ductile fracture in metals by the strain localization theory

David Morin , Odd Sture Hopperstad , Ahmed Benallal
International Journal of Fracture, 2018, 209 (1-2), pp.27 - 51. ⟨10.1007/s10704-017-0236-9⟩
Article dans une revue hal-01717960v1

Constitutive equations for porous solids with matrix behaviour dependent on the second and third stress invariants

A. Benallal
International Journal of Impact Engineering, 2017, 108, pp.47 - 62. ⟨10.1016/j.ijimpeng.2017.05.004⟩
Article dans une revue hal-01592338v1
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A study of the influence of precipitate-free zones on the strain localization and failure of the aluminium alloy AA7075-T651

Marion Fourmeau , Calin D. Marioara , Tore Borvik , Ahmed Benallal , Odd Sture Hopperstad
Philosophical Magazine, 2015, 95 (28-30), pp.3278-3304. ⟨10.1080/14786435.2015.1040099⟩
Article dans une revue hal-01717954v1

An assessment of the role of the third stress invariant in the Gurson approach for ductile fracture

Ahmed Benallal , R. Desmorat , M. Fournage
European Journal of Mechanics - A/Solids, 2014, 47, pp.400 - 414. ⟨10.1016/j.euromechsol.2014.02.009⟩
Article dans une revue hal-01717959v1

Quasi-static and Dynamic Fracture of High-strength Aluminium Alloy

O.S. Hopperstad , T. Børvik , M. Fourmeau , K.O. Pedersen , Ahmed Benallal
Procedia Materials Science (Elsevier), 2014, 3, pp.51 - 56. ⟨10.1016/j.mspro.2014.06.012⟩
Article dans une revue hal-01717962v1

Anisotropic failure modes of high-strength aluminium alloy under various stress states

M. Fourmeau , T. Børvik , Ahmed Benallal , O.S. Hopperstad
International Journal of Plasticity, 2013, 48, pp.34 - 53. ⟨10.1016/j.ijplas.2013.02.004⟩
Article dans une revue hal-01717957v1

Effect of strain rate and dynamic strain ageing on work-hardening for aluminium alloy AA5182-O

Odd Lademo , Olaf Engler , Ahmed Benallal , Odd Sture Hopperstad
International Journal of Materials Research, 2012, 103 (8), pp.1035 - 1041. ⟨10.3139/146.110741⟩
Article dans une revue hal-01718603v1

Experimental and numerical study on the behaviour of PVC and HDPE in biaxial tension

Anne Serine Ognedal , Arild Holm Clausen , Mario Polanco-Loria , Ahmed Benallal , Bumedijen Raka
Mechanics of Materials, 2012, 54, pp.18 - 31. ⟨10.1016/j.mechmat.2012.05.010⟩
Article dans une revue hal-01718431v1

BEM modeling of saturated porous media susceptible to damage

E.T. Lima Junior , W.S. Venturini , Ahmed Benallal
Engineering Analysis with Boundary Elements, 2012, 36 (2), pp.147 - 153. ⟨10.1016/j.enganabound.2011.07.002⟩
Article dans une revue hal-01718659v1

Computational aspects in presence of negative strain-rate sensitivity with application to aluminium alloys exhibiting the Portevin–Le Chatelier effect

Ahmed Benallal , T. Berstad , T. Børvik , Rodrigo Nogueira de Codes , O.S. Hopperstad
Modelling and Simulation in Materials Science and Engineering, 2012, ⟨10.1088/issn.0965-0393⟩
Article dans une revue hal-01718212v1

On the plastic anisotropy of an aluminium alloy and its influence on constrained multiaxial flow

M. Fourmeau , T. Børvik , Ahmed Benallal , O.G. Lademo , O.S. Hopperstad
International Journal of Plasticity, 2011, 27 (12), pp.2005 - 2025. ⟨10.1016/j.ijplas.2011.05.017⟩
Article dans une revue hal-01718388v1

Failure criteria with unilateral conditions for simulation of plate perforation

A. Kane , T. Børvik , T. Berstad , Ahmed Benallal , O.S. Hopperstad
European Journal of Mechanics - A/Solids, 2011, 30 (4), pp.468 - 476. ⟨10.1016/j.euromechsol.2011.02.003⟩
Article dans une revue hal-01718417v1

Coupled Evolution of Damage and Fluid Flow in a Mandel-type Problem

Eduardo Toledo de Lima Junior , Wilson S. Venturini , Ahmed Benallal
Computer Modeling in Engineering and Sciences, 2011
Article dans une revue hal-01719105v1

Spatial and Temporal Characteristics of Propagating Deformation Bands in AA5182 Alloy at Room Temperature

R. Nogueira de Codes , O. Hopperstad , O. Engler , O.-G. Lademo , J. Embury
Metallurgical and Materials Transactions A, 2011, 42 (11), pp.3358 - 3369. ⟨10.1007/s11661-011-0749-1⟩
Article dans une revue hal-01718373v1

Influence of specimen geometry on the Portevin–Le Châtelier effect due to dynamic strain aging for the AA5083-H116 aluminum alloy

Rodrigo Nogueira de Codes , Ahmed Benallal
Journal of Mechanics of Materials and Structures, 2011, 6 (7-8), pp.951 - 968. ⟨10.2140/jomms.2011.6.951⟩
Article dans une revue hal-01718837v1

Uniqueness, loss of ellipticity and localization for the time-discretized, rate-dependent boundary value problem with softening

Ahmed Benallal , T. Berstad , T. Børvik , O. Hopperstad
International Journal for Numerical Methods in Engineering, 2010, 84 (7), pp.864 - 882. ⟨10.1002/nme.2931⟩
Article dans une revue hal-01718472v1

BEM applied to damage phenomena in saturated porous media

E Junior , W Venturini , Ahmed Benallal
IOP Conference Series: Materials Science and Engineering, 2010, 10, ⟨10.1088/1757-899X/10/1/012049⟩
Article dans une revue hal-01719106v1

On the fracture locus of AA7075-T651

M. Fourmeau , T. Børvik , Ahmed Benallal , O.S. Hopperstad
EPJ Web of Conferences, 2010, 6, ⟨10.1051/epjconf/20100602006⟩
Article dans une revue hal-01719107v1

Strain-Rate Sensitivity of Aluminum Alloys AA1200 and AA3103

O. Lademo , O. Engler , J. Aegerter , T. Berstad , Ahmed Benallal
Journal of Engineering Materials and Technology, 2010, 132 (4), ⟨10.1115/1.4002160⟩
Article dans une revue hal-01718523v1
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Effects of strain rate on the characteristics of PLC deformation bands for AA5083-H116 aluminium alloy

A. Benallal , Torod Berstad , Tore Borvik , Odd Sture Hopperstad , Rodrigo Nogueira de Codes
Philosophical Magazine, 2009, 88 (28-29), pp.3311-3338. ⟨10.1080/14786430802468223⟩
Article dans une revue hal-00513974v1

Consolidation of elastic–plastic saturated porous media by the boundary element method

Ahmed Benallal , Alexandre Botta , Wilson Venturini
Computer Methods in Applied Mechanics and Engineering, 2008, 197 (51-52), pp.4626 - 4644. ⟨10.1016/j.cma.2008.06.003⟩
Article dans une revue hal-01718845v1

Aspects of bifurcation in an isotropic elastic continuum with orthotropic inelastic interface

J. Utzinger , A. Menzel , P. Steinmann , Ahmed Benallal
European Journal of Mechanics - A/Solids, 2008, 27 (4), pp.532 - 547. ⟨10.1016/j.euromechsol.2007.11.001⟩
Article dans une revue hal-01718457v1
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Towards Humanlike Social Touch for Sociable Robotics and Prosthetics: Comparisons on the Compliance, Conformance and Hysteresis of Synthetic and Human Fingertip Skins

John-John Cabibihan , Stephane Pattofatto , Moez Jomaa , Ahmed Benallal , Maria Chiara Carrozza
International Journal of Social Robotics, 2008, vol 1, pp.29-40. ⟨10.1007/s12369-008-0008-9⟩
Article dans une revue hal-00418519v1

A note on ill-posedness for rate-dependent problems and its relation to the rate-independent case

Ahmed Benallal
Computational Mechanics, 2008, 42 (2), pp.261 - 269. ⟨10.1007/s00466-008-0252-8⟩
Article dans une revue hal-01718524v1

An experimental and numerical investigation of the behaviour of AA5083 aluminium alloy in presence of the Portevin–Le Chatelier effect

Ahmed Benallal , T. Berstad , T. Børvik , O.S. Hopperstad , I. Koutiri
International Journal of Plasticity, 2008, 24 (10), pp.1916 - 1945. ⟨10.1016/j.ijplas.2008.03.008⟩
Article dans une revue hal-01718268v1

A numerical study on the influence of the Portevin–Le Chatelier effect on necking in an aluminium alloy

O Hopperstad , T. Børvik , T. Berstad , O-G Lademo , Ahmed Benallal
Modelling and Simulation in Materials Science and Engineering, 2007, 15 (7), pp.747 - 772. ⟨10.1088/0965-0393/15/7/004⟩
Article dans une revue hal-01718370v1
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Bifurcation and stability issues in gradient theories with softening

Ahmed Benallal , Jean-Jacques Marigo
Modelling and Simulation in Materials Science and Engineering, 2007, 15 (1), pp.S283-S295. ⟨10.1088/0965-0393/15/1/S22⟩
Article dans une revue hal-00551073v1

Dynamic strain aging and related instabilities: experimental, theoretical and numerical aspects

Ahmed Benallal , T. Berstad , T. Børvik , A.H. Clausen , O.S. Hopperstad
European Journal of Mechanics - A/Solids, 2006, 25 (3), pp.397 - 424. ⟨10.1016/j.euromechsol.2005.10.007⟩
Article dans une revue hal-01718317v1

On the description of localization and failure phenomena by the boundary element method

Ahmed Benallal , Alexandre Botta , Wilson Venturini
Computer Methods in Applied Mechanics and Engineering, 2006, 195 (44-47), pp.5833 - 5856. ⟨10.1016/j.cma.2005.08.025⟩
Article dans une revue hal-01718393v1

Finite element simulations of the Portevin–Le Chatelier effect in aluminium alloy

O. Hopperstad , T. Børvik , T. Berstad , Ahmed Benallal
Journal de Physique IV Proceedings, 2006, 134, pp.435 - 441. ⟨10.1051/jp4:2006134067⟩
Article dans une revue hal-01718577v1

Gradient constitutive relations : numerical aspects and application to gradient damage

E. Lorentz , A. Benallal
Computer Methods in Applied Mechanics and Engineering, 2005, 194, pp.5191-5220
Article dans une revue hal-00089126v1

BEM applied to damage models emphasizing localization and associated regularization techniques

Alexandre Botta , Wilson Venturini , Ahmed Benallal
Engineering Analysis with Boundary Elements, 2005, 29 (8), pp.814 - 827. ⟨10.1016/j.enganabound.2005.04.006⟩
Article dans une revue hal-01718403v1

On localization modes in coupled thermo-hydro-mechanical problems

Ahmed Benallal
Comptes Rendus Mécanique, 2005, 333 (7), pp.557 - 564. ⟨10.1016/j.crme.2005.05.005⟩
Article dans une revue hal-01718607v1

Gradient constitutive relations: numerical aspects and application to gradient damage

E. Lorentz , Ahmed Benallal
Computer Methods in Applied Mechanics and Engineering, 2005, 194 (50-52), pp.5191 - 5220. ⟨10.1016/j.cma.2004.12.016⟩
Article dans une revue hal-01718363v1

On interfacial properties in gradient damaging continua

Ahmed Benallal , Claudia Comi
Comptes Rendus Mécanique, 2005, 333 (4), pp.319 - 324. ⟨10.1016/j.crme.2005.02.001⟩
Article dans une revue hal-01718555v1

Flow and fracture characteristics of aluminium alloy AA5083–H116 as function of strain rate, temperature and triaxiality

Arild Clausen , Tore Borvik , Odd Hopperstad , Ahmed Benallal
Materials Science and Engineering: A, 2004, 364 (1-2), pp.260 - 272. ⟨10.1016/j.msea.2003.08.027⟩
Article dans une revue hal-01718241v1

Effects of temperature and thermo-mechanical couplings on material instabilities and strain localization of inelastic materials

Ahmed Benallal , Davide Bigoni
Journal of the Mechanics and Physics of Solids, 2004, 52 (3), pp.725 - 753. ⟨10.1016/S0022-5096(03)00118-2⟩
Article dans une revue hal-01718360v1

On numerical analyses in the presence of unstable saturated porous materials

Ahmed Benallal , C. Comi
International Journal for Numerical Methods in Engineering, 2003, 56 (6), pp.883 - 910. ⟨10.1002/nme.597⟩
Article dans une revue hal-01718436v1

Perturbation growth and localization in fluid-saturated inelastic porous media under quasi-static loadings

Ahmed Benallal , Claudia Comi
Journal of the Mechanics and Physics of Solids, 2003, 51 (5), pp.851 - 899. ⟨10.1016/S0022-5096(02)00143-6⟩
Article dans une revue hal-01718385v1

Material instabilities in inelastic saturated porous media under dynamic loadings

Ahmed Benallal , Claudia Comi
International Journal of Solids and Structures, 2002, 39 (13-14), pp.3693 - 3716. ⟨10.1016/S0020-7683(02)00180-4⟩
Article dans une revue hal-01718383v1

An implicit BEM formulation for gradient plasticity and localization phenomena

Ahmed Benallal , Carlos A. Fudoli , Wilson S. Venturini
International Journal for Numerical Methods in Engineering, 2002, 53 (8), pp.1853 - 1869. ⟨10.1002/nme.365⟩
Article dans une revue hal-01718358v1

Quasi-static versus dynamic failure instabilities in fluid-saturated porous media

Ahmed Benallal , Claudia Comi
Comptes Rendus Mécanique, 2002
Article dans une revue hal-01719104v1

Theoretical and computational aspects of a thermodynamically consistent framework for geometrically linear gradient damage

T. Liebe , P. Steinmann , Ahmed Benallal
Computer Methods in Applied Mechanics and Engineering, 2001, 190 (49-50), pp.6555 - 6576. ⟨10.1016/S0045-7825(01)00250-X⟩
Article dans une revue hal-01718266v1

On localization in saturated porous continua

Ahmed Benallal , Claudia Comi
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy, 2000, 328 (12), pp.847 - 853. ⟨10.1016/S1620-7742(00)01277-0⟩
Article dans une revue hal-01718541v1

Relation théorique entre la méthode de perturbation linéaire et l'analyse de bifurcation pour la prédiction de la localisation des déformations

Gilles Barbier , Ahmed Benallal , Valerie Cano
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy, 1998, 326 (3), pp.153 - 158. ⟨10.1016/S1251-8069(99)89001-0⟩
Article dans une revue hal-01718253v1

2D nonlocal versus 3D bifurcation studies for biaxially loaded plates

Ahmed Benallal , V. Tvergaard
Journal de Physique IV Proceedings, 1998, 08 (PR8), pp.Pr8-29 - Pr8-37. ⟨10.1051/jp4:1998804⟩
Article dans une revue hal-01719112v1
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A Gradient-Enhanced Damage Approach to Fracture

R. de Borst , A. Benallal , O. Heeres
Journal de Physique IV Proceedings, 1996, 06 (C6), pp.C6-491-C6-502. ⟨10.1051/jp4:1996649⟩
Article dans une revue jpa-00254482v1

Localization analysis via a geometrical method

Ahmed Benallal , Claudia Comi
International Journal of Solids and Structures, 1996, 33 (1), pp.99 - 119. ⟨10.1016/0020-7683(95)00018-6⟩
Article dans une revue hal-01718320v1

Nonlocal continuum effects on bifurcation in the plane strain tension-compression test

Ahmed Benallal , Viggo Tvergaard
Journal of the Mechanics and Physics of Solids, 1995, 43 (5), pp.741 - 770. ⟨10.1016/0022-5096(95)00002-Z⟩
Article dans une revue hal-01718314v1

Closed form solutions to localization conditions for rate-independent materials

Ahmed Benallal , Claudia Comi
Comptes rendus de l’Académie des sciences. Série 2, 1994
Article dans une revue hal-01719113v1

A two-field finite element formulation for elasticity coupled to damage

Julio Florez-Lopez , Ahmed Benallal , Giuseppe Geymonat , René Billardon
Computer Methods in Applied Mechanics and Engineering, 1994, 114 (3-4), pp.193 - 212. ⟨10.1016/0045-7825(94)90171-6⟩
Article dans une revue hal-01718412v1

The role of deviatoric and volumetric non-associativities on strain localization

Ahmed Benallal , Claudia Comi
Rendiconti Lincei. Matematica e Applicazioni, 1993
Article dans une revue hal-01719114v1

Strain localization and bifurcation in a nonlocal continuum

Gilles Pijaudier-Cabot , Ahmed Benallal
International Journal of Solids and Structures, 1993, 30 (13), pp.1761 - 1775. ⟨10.1016/0020-7683(93)90232-V⟩
Article dans une revue hal-01718249v1

Lifetime prediction of structures in anisothermal viscoplasticity coupled to damage

J. Lemaitre , Ahmed Benallal , D. Marquis
Nuclear Engineering and Design, 1992, 133 (3), pp.345 - 360. ⟨10.1016/0029-5493(92)90161-N⟩
Article dans une revue hal-01718538v1

Quelques remarques sur le rôle du couplage thermomécanique dans les phénomènes de localisation. (Some remarks on the role of thermo- mechanical couplings in localization phenomena)

Ahmed Benallal
Comptes rendus de l’Académie des sciences. Série 2, 1991
Article dans une revue hal-01719115v1

Continuum damage mechanics and local approach to fracture: Numerical procedures

Ahmed Benallal , R. Billardon , J. Lemaitre
Computer Methods in Applied Mechanics and Engineering, 1991, 92 (2), pp.141 - 155. ⟨10.1016/0045-7825(91)90236-Y⟩
Article dans une revue hal-01718284v1

Phénomènes de localisation à la frontière d’un solide. (Localization phenomena at the boundary of solids)

Ahmed Benallal , R Billardon , G. Geymonat
Comptes rendus de l’Académie des sciences. Série 2, 1990
Article dans une revue hal-01719119v1

Sur le problème en vitesses pour les solides élasto-viscoplastiques endommageables en présence de zone rompue. (On the rate boundary value problem for elastic-viscoplastic damageable solids containing a ruptured zone)

Ahmed Benallal , G. Geymonat
Comptes rendus de l’Académie des sciences. Série 2, 1990
Article dans une revue hal-01719122v1

Validation of structural computation codes in elastoviscoplasticity

Ahmed Benallal , P. Chabrand , M. Ghazouane , M. Chaudonneret , J. Culié
International Journal for Numerical Methods in Engineering, 1990, 29 (5), pp.1109-1130. ⟨10.1002/nme.1620290514⟩
Article dans une revue hal-01718554v1

Conditions de bifurcation à l’intérieur et aux frontière pour une classe de matériaux non-standards. (Bifurcation conditions inside and at the boundary for a class of non-standard materials)

Ahmed Benallal , R. Billardon , G. Geymonat
Comptes rendus de l’Académie des sciences. Série 2, 1989
Article dans une revue hal-01719123v1

An experimental investigation of cyclic hardening of 316 stainless steel and of 2024 aluminium alloy under multiaxial loadings

Ahmed Benallal , P. Le Gallo , D. Marquis
Nuclear Engineering and Design, 1989, 114 (3), pp.345 - 353. ⟨10.1016/0029-5493(89)90112-X⟩
Article dans une revue hal-01718278v1

Effects of non‐proportional loadings in cyclic elasto‐viscoplasticity: experimental, theoretical and numerical aspects

Ahmed Benallal , D. Marquis
Engineering Computations, 1988, 5 (3), pp.241 - 247. ⟨10.1108/eb023742⟩
Article dans une revue hal-01718595v1

An integration algorithm and the corresponding consistent tangent operator for fully coupled elastoplastic and damage equations

Ahmed Benallal , René Billardon , Issam Doghri
Communications in Applied Numerical Methods, 1988, 4 (6), pp.731 - 740. ⟨10.1002/cnm.1630040606⟩
Article dans une revue hal-01718276v1

Sur une formulation variationnelle à deux champs en élasticité couplée à l’endommagement. (A two-field variational formulation in elasticity coupled to damage)

Ahmed Benallal , Julio Florez-Lopez , Giusepe Geymonat
Comptes rendus de l’Académie des sciences. Série 2, 1987
Article dans une revue hal-01719125v1

Constitutive Equations for Nonproportional Cyclic Elasto-Viscoplasticity

Ahmed Benallal , D. Marquis
Journal of Engineering Materials and Technology, 1987, 109 (4), ⟨10.1115/1.3225985⟩
Article dans une revue hal-01718246v1

On the stability of some time-integration schemes in quasi-static hardening elasto-viscoplasticity

Ahmed Benallal
Engineering Analysis, 1987, 4 (2), pp.95 - 99. ⟨10.1016/0264-682X(87)90019-0⟩
Article dans une revue hal-01718531v1

Structural analysis in quasi‐static elasto‐viscoplasticity

Ahmed Benallal
Engineering Computations, 1986, 3 (4), pp.323 - 330. ⟨10.1108/eb023674⟩
Article dans une revue hal-01718439v1