Sascha Eisentrager

Lecturer

Lecturer in the School of Civil and Environmental Engineering

Dr Sascha Eisentraeger is a Lecturer in Computational Mechanics in the School of Civil and Environmental Engineering at UNSW and a member of the Centre for Infrastructure and Engineering Safety (CIES), a position he has held since January 2019. Before joining UNSW he was a Postdoctoral Research Fellow at the Otto von Guericke University Magdeburg. He was involved in several interdisciplinary projects in the context of structural health monitoring (SHM) applications, where he was concerned with the development of efficient numerical methods for the analysis of wave propagation phenomena in thin-walled structures. Therefore, the propagation of elastic guided waves (Lamb waves, Love waves, Rayleigh waves, etc.) is an important are for his innovative high order finite element and fictitious domain approaches.

Looking for a Ph.D. Student

A postgraduate position (Ph,D.) is available in the area of computational mechanics. The candidate will be dealing with the development of numerical methods based on the finite element method (FEM) and fictitious domain techniques. Candidates are expected to have a Bachelor's (Honours) or Master's degree in one of the following fields: Mechanical Engineering, Computational Science and Engineering, Civil Engineering, (computational) Physics, or (computational/applied) Mathematics. The candidates should have a strong background in numerical analysis, FEM, and programming (Matlab, Fortran, C, etc.). Suitable candidates, fulfilling the mentioned criteria, are strongly encouraged to apply.

In order to undertake postgraduate research students will generally need to obtain a scholarship either from UNSW (https://research.unsw.edu.au/postgraduate-research-scholarships) or from the government of their homeland. The eligibility can be checked in the self-assessment tool (https://selfassessment.research.unsw.edu.au/). If the assessment does not indicate "likely to be competitive for a scholarship" a successful application is unlikely. If the self-assessment was passed please email me:

  • CV with details of any research experience/publications
  • Brief statement outlining your suitability for the research area
  • Academic transcripts
  • Results of the self-assessment tool
  • Details of the proposed funding arrangement (if applicable)
  • Student information form
  • Results of an English-language test

Please do yourself a favour by personalising your email and do not send the same application to each member of the school or faculty.

Education

Doctor of Engineering (Computational Mechanics), Otto von Guericke University Magdeburg, Germany, 2014

Diploma degree (equivalent to Master of Engineering), Otto von Guericke University Magdeburg, Germany, 2010

Study abroad, The University of Adelaide (Mechanical Engineering), Australia, 2008

Editorial Boards

Structural Control and Health Monitoring

  • Official Journal of European Association for the Control of Structures
  • Journal of the International Association of Structural Control and Monitoring

Aims and Scope

  • Theoretical and technological aspects of structural control, structural health monitoring theory and smart materials and structures.
  • Focus on aerospace, civil, infrastructure and mechanical engineering applications.

Technische Mechanik (Scientific Journal for Fundamentals and Applications of Engineering Mechanics)

  • Open Access Journal
  • Free of publication costs
  • Fast and constructive peer-review process

Aims and Scope

  • Research in the field of mechanics
    • Theoretical mechanics
    • Applied mechanics
    • Experimental mechanics
    • Computational Mechanics
    • Fluid dynamics

Memberships

ISHMII (International Society for Structural Health Monitoring of Intelligent Infrastructure)

GAMM (International Association of Applied Mathematics and Mechanics)

MATEM (Association for Engineering Mechanics in Magdeburg; publisher of the open access journal Technische Mechanik)

Journal articles
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Qu Y; Chen D; Liu L; Ooi ET; Eisenträger S; Song C, 2021, 'A direct time-domain procedure for the seismic analysis of dam–foundation–reservoir systems using the scaled boundary finite element method', Computers and Geotechnics, vol. 138, http://dx.doi.org/10.1016/j.compgeo.2021.104364
2021
Gravenkamp H; Saputra AA; Eisenträger S, 2021, 'Efficient modeling of 3D geometries using octree‐meshes combined with SBFEM and transfinite elements', PAMM, vol. 20, http://dx.doi.org/10.1002/pamm.202000226
2021
Petö M; Duvigneau F; Juhre D; Eisenträger S, 2021, 'Enhanced integration scheme for unfitted polygonal elements', PAMM, vol. 20, http://dx.doi.org/10.1002/pamm.202000230
2021
Makvandi R; Abali BE; Eisenträger S; Juhre D, 2021, 'Revisiting Mindlin's theory with regard to a gradient extended phase‐field model for fracture', PAMM, vol. 20, http://dx.doi.org/10.1002/pamm.202000104
2021
Gluege R; Altenbach H; Eisentrager S, 2021, 'Locally-synchronous, iterative solver for Fourier-based homogenization', COMPUTATIONAL MECHANICS, vol. 68, pp. 599 - 618, http://dx.doi.org/10.1007/s00466-021-01975-w
2021
Ya S; Eisenträger S; Song C; Li J, 2021, 'An open-source ABAQUS implementation of the scaled boundary finite element method to study interfacial problems using polyhedral meshes', Computer Methods in Applied Mechanics and Engineering, vol. 381, http://dx.doi.org/10.1016/j.cma.2021.113766
2021
Zhang J; Ankit A; Gravenkamp H; Eisenträger S; Song C, 2021, 'A massively parallel explicit solver for elasto-dynamic problems exploiting octree meshes', Computer Methods in Applied Mechanics and Engineering, vol. 380, pp. 113811 - 113811, http://dx.doi.org/10.1016/j.cma.2021.113811
2021
Gravenkamp H; Saputra AA; Duczek S, 2021, 'High-Order Shape Functions in the Scaled Boundary Finite Element Method Revisited', Archives of Computational Methods in Engineering, vol. 28, pp. 473 - 494, http://dx.doi.org/10.1007/s11831-019-09385-1
2021
Duczek S; Saputra AA; Gravenkamp H, 2020, 'High order transition elements: The xNy-element concept—Part I: Statics', Computer Methods in Applied Mechanics and Engineering, vol. 362, pp. 112833 - 112833, http://dx.doi.org/10.1016/j.cma.2020.112833
2020
Petö M; Duvigneau F; Eisenträger S, 2020, 'Correction to: Enhanced numerical integration scheme based on image-compression techniques: application to fictitious domain methods', Advanced Modeling and Simulation in Engineering Sciences, vol. 7, http://dx.doi.org/10.1186/s40323-020-00165-2
2020
Petoe M; Duvigneau F; Juhre D; Eisentrager S, 2020, 'Enhanced numerical integration scheme based on image compression techniques: Application to rational polygonal interpolants', ARCHIVE OF APPLIED MECHANICS, vol. 91, pp. 753 - 775, http://dx.doi.org/10.1007/s00419-020-01772-6
2020
Saputra AA; Eisenträger S; Gravenkamp H; Song C, 2020, 'Three-dimensional image-based numerical homogenisation using octree meshes', Computers and Structures, vol. 237, http://dx.doi.org/10.1016/j.compstruc.2020.106263
2020
Eisenträger J; Zhang J; Song C; Eisenträger S, 2020, 'An SBFEM Approach for Rate-Dependent Inelasticity with Application to Image-Based Analysis', International Journal of Mechanical Sciences, vol. 182, http://dx.doi.org/10.1016/j.ijmecsci.2020.105778
2020
Petö M; Duvigneau F; Eisenträger S, 2020, 'Enhanced numerical integration scheme based on image-compression techniques: application to fictitious domain methods', Advanced Modeling and Simulation in Engineering Sciences, vol. 7, http://dx.doi.org/10.1186/s40323-020-00157-2
2020
Gravenkamp H; Saputra AA; Eisenträger S, 2020, 'Three-dimensional image-based modeling by combining SBFEM and transfinite element shape functions', Computational Mechanics, vol. 66, pp. 911 - 930, http://dx.doi.org/10.1007/s00466-020-01884-4
2020
Zhang J; Eisenträger J; Duczek S; Song C, 2020, 'Discrete modeling of fiber reinforced composites using the scaled boundary finite element method', Composite Structures, vol. 235, http://dx.doi.org/10.1016/j.compstruct.2019.111744
2020
Eisenträger S; Atroshchenko E; Makvandi R, 2020, 'On the condition number of high order finite element methods: Influence of p-refinement and mesh distortion', Computers and Mathematics with Applications, vol. 80, pp. 2289 - 2339, http://dx.doi.org/10.1016/j.camwa.2020.05.012
2020
Duczek S; Gravenkamp H, 2019, 'Critical Assessment of Different Mass Lumping Schemes for Higher Order Serendipity Finite Elements', Computer Methods in Applied Mechanics and Engineering, vol. 350, pp. 836 - 897, http://dx.doi.org/10.1016/j.cma.2019.03.028
2019
Duvigneau F; Duczek S, 2019, 'High‐order shape functions for interior acoustics', PAMM, vol. 19, http://dx.doi.org/10.1002/pamm.201900010
2019
Makvandi R; Duczek S; Juhre D, 2019, 'A Phase-Field Fracture Model based on Strain Gradient Elasticity', Engineering Fracture Mechanics, vol. 220, pp. 1 - 22, http://dx.doi.org/10.1016/j.engfracmech.2019.106648
2019
Duczek S; Gravenkamp H, 2019, 'Mass Lumping Techniques in the Spectral Element Method: On the Equivalence of the Row-sum, Nodal Quadrature, and Diagonal Scaling Methods', Computer Methods in Applied Mechanics and Engineering, vol. 353, pp. 516 - 569, http://dx.doi.org/10.1016/j.cma.2019.05.016
2019
Duczek S; Gravenkamp H, 2018, 'On the Construction of Diagonal Mass Matrices for Serendipity Elements', Proceedings in Applied Mathematics and Mechanics, vol. 18, pp. e201800188 - e201800188, http://dx.doi.org/10.1002/pamm.201800188
2018
Heinze C; Duczek S; Sinapius M; Wierach P, 2017, 'A Minimal Model-Based Approach for the Fast Approximation of Wave Propagation in Complex Structures', Structural Health Monitoring, vol. 16, pp. 568 - 582, http://dx.doi.org/10.1177/1475921717697509
2017
Gravenkamp H; Duczek S, 2017, 'Automatic image-based analyses using a coupled quadtree-SBFEM/SCM approach', Computational Mechanics, vol. 60, pp. 559 - 584, http://dx.doi.org/10.1007/s00466-017-1424-1
2017
Duczek S; Duvigneau F; Würkner M; Gabbert U, 2017, 'The Finite Cell Method: Polygonal and Tetrahedral Cells', Proceedings in Applied Mathematics and Mechanics, vol. 17, pp. 295 - 296, http://dx.doi.org/10.1002/pamm.201710117
2017
Gravenkamp H; Duczek S; Birk C, 2017, 'Automatic Quadtree-Based Modeling Using a Coupled SBFEM/SCM Approach', Proceedings in Applied Mathematics and Mechanics, vol. 17, pp. 299 - 300, http://dx.doi.org/10.1002/pamm.201710119
2017
Duczek S; Duvigneau F; Gabbert U, 2016, 'The Finite Cell Method for Tetrahedral Meshes', Finite Elements in Analysis and Design, vol. 121, pp. 18 - 32, http://dx.doi.org/10.1016/j.finel.2016.07.004
2016
Duczek S; Gabbert U, 2016, 'The Finite Cell Method for Polygonal Meshes: Poly-FCM', Computational Mechanics, vol. 58, pp. 587 - 618, http://dx.doi.org/10.1007/s00466-016-1307-x
2016
Willberg C; Duczek S; Vivar Perez JM; Ahmad ZAB, 2015, 'Simulation Methods for Guided-Wave Based Structural Health Monitoring: A Review', Applied Mechanics Reviews, vol. 67, pp. 1 - 20, http://dx.doi.org/10.1115/1.4029539
2015
Duczek S; Gabbert U, 2015, 'Efficient Integration Method for Fictitious Domain Approaches', Computational Mechanics, vol. 56, pp. 725 - 738, http://dx.doi.org/10.1007/s00466-015-1197-3
2015
Duczek S; Berger H; Gabbert U, 2015, 'The Finite Pore Method: A New Approach to Evaluate Gas Pores in Cast Parts by Combining Computed Tomography and the Finite Cell Method', International Journal of Cast Metals Research, vol. 28, pp. 221 - 228, http://dx.doi.org/10.1179/1743133615y.0000000003
2015
Duczek S; Liefold S; Gabbert U, 2015, 'The Finite and Spectral Cell Methods for Smart Structure Applications: Transient Analysis', Acta Mechanica, vol. 226, pp. 845 - 869, http://dx.doi.org/10.1007/s00707-014-1227-9
2015
Duczek S; Berger H; Ambos E; Gabbert U, 2015, 'Eine neue Methode zur Berücksichtigung des Einflusses der Porosität in Al-Druckgussteilen auf die Festigkeit – Ein Beitrag zum Leichtbau', Giesserei-Rundschau, vol. 62, pp. 222 - 227, http://www.proguss-austria.at/wp-content/uploads/2017/11/Giesserei_9_10_2015.pdf
2015
Schmicker D; Duczek S; Liefold S; Gabbert U, 2014, 'Wave Propagation Analysis Using High-Order Finite Element Methods: Spurious Oscillations Excited by Internal Element Eigenfrequencies', Technische Mechanik – Scientific Journal for Fundamentals and Applications of Engineering Mechanics, vol. 34, pp. 51 - 71, http://dx.doi.org/10.24352/UB.OVGU-2017-053
2014
Hosseini SMH; Duczek S; Gabbert U, 2014, 'Damage Localization in Plates Using Mode Conversion Characteristics of Ultrasonic Guided Waves', Journal of Nondestructive Evaluation, vol. 33, pp. 152 - 165, http://dx.doi.org/10.1007/s10921-013-0211-y
2014
Joulaian M; Duczek S; Gabbert U; Düster A, 2014, 'Efficient Simulation of Wave Propagation in Heterogeneous Materials', Proceedings in Applied Mathematics and Mechanics, vol. 14, pp. 715 - 716, http://dx.doi.org/10.1002/pamm.201410340
2014
Vivar Perez JM; Duczek S; Gabbert U, 2014, 'Analytical and Higher Order Finite Element Hybrid Approaches for an Efficient Simulation of Ultrasonic Guided Waves I: 2D-Analysis', Smart Structures and Systems, vol. 13, pp. 587 - 614, http://dx.doi.org/10.12989/sss.2014.13.4.587
2014
Duczek S; Joulaian M; Düster A; Gabbert U, 2014, 'Numerical Analysis of Lamb Waves Using the Finite and Spectral Cell Methods', International Journal for Numerical Methods in Engineering, vol. 99, pp. 26 - 53, http://dx.doi.org/10.1002/nme.4663
2014
Joulaian M; Duczek S; Gabbert U; Düster A, 2014, 'Finite and Spectral Cell Method for Wave Propagation in Heterogeneous Materials', Computational Mechanics, vol. 54, pp. 661 - 675, http://dx.doi.org/10.1007/s00466-014-1019-z
2014
Duczek S; Gabbert U, 2013, 'Anisotropic Hierarchic Finite Elements for the Simulation of Piezoelectric Smart Structures', Engineering Computations, vol. 30, pp. 682 - 706, http://dx.doi.org/10.1108/ec-08-2013-0005
2013
Hosseini SMH; Duczek S; Gabbert U, 2013, 'Non-Reflecting Boundary Condition for Lamb Wave Propagation Problems in Honeycomb and CFRP Plates Using Dashpot Elements', Composites: Part B: Engineering, vol. 54, pp. 1 - 10, http://dx.doi.org/10.1016/j.compositesb.2013.04.061
2013
Willberg C; Duczek S; Gabbert U, 2013, 'Increasing the Scanning Range of Lamb Wave Based SHM Systems by Optimizing the Actuator-Sensor Design', CEAS Aeronautical Journal, vol. 4, pp. 87 - 98, http://dx.doi.org/10.1007/s13272-012-0052-x
2013
Duczek S; Willberg C; Schmicker D; Gabbert U, 2012, 'Development, Validation and Comparison of Higher Order Finite Element Approaches to Compute the Propagation of Lamb Waves Efficiently', Key Engineering Materials, vol. 518, pp. 95 - 105, http://dx.doi.org/10.4028/www.scientific.net/kem.518.95
2012
Willberg C; Duczek S; Vivar Perez JM; Schmicker D; Gabbert U, 2012, 'Comparison of Different Higher Order Finite Element Schemes for the Simulation of Lamb Waves', Computer Methods in Applied Mechanics and Engineering, vol. 241-244, pp. 246 - 261, http://dx.doi.org/10.1016/j.cma.2012.06.011
2012
Duczek S; Willberg C; Gabbert U, 2011, 'Increasing the Scanning Range of Lamb Wave Based SHM Systems by Optimizing the Sensor Design and Excitation Frequency', Proceedings in Applied Mathematics and Mechanics, vol. 11, pp. 625 - 626, http://dx.doi.org/10.1002/pamm.201110302
2011
Song C; Eisenträger S, 'High-order implicit time integration scheme based on Padé expansions', , http://arxiv.org/abs/2103.12282v1
Book Chapters
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Koch S; Duvigneau F; Duczek S; Woschke E, 2019, 'Vibration reduction in automotive applications based on the damping effect of granular material', in Proceedings, Springer Fachmedien Wiesbaden, pp. 43 - 57, http://dx.doi.org/10.1007/978-3-658-20251-4_3
2019
Heinze C; Duczek S; Sinapius M, 2018, 'A Minimal Model for Fast Approximation of Lamb Wave Propagation in Complex Aircraft Parts', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 241 - 261, http://dx.doi.org/10.1007/978-3-319-49715-0_10
2018
Würkner M; Duczek S; Berger H; Köppe H; Gabbert U, 2018, 'A Software Platform for the Analysis of Porous Die-Cast Parts Using the Finite Cell Method', in Altenbach H; Carrera E; Kulikov G (ed.), Analysis and Modelling of Advanced Structures and Smart Systems, Springer, Singapore, pp. 327 - 341, http://dx.doi.org/10.1007/978-981-10-6895-9-14
2018
Duvigneau F; Duczek S, 2018, 'A Numerical Study on the Potential of Acoustic Metamaterials', in Altenbach H; Carrera E; Kulikov G (ed.), Analysis and Modelling of Advanced Structures and Smart Systems, Springer, Singapore, pp. 11 - 34, http://dx.doi.org/10.1007/978-981-10-6895-9-2
2018
Lammering R; Duczek S; Gabbert U, 2018, 'Objectives', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 11 - 13, http://dx.doi.org/10.1007/978-3-319-49715-0_2
2018
Lammering R; Duczek S; Gabbert U, 2018, 'Motivation', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 3 - 10, http://dx.doi.org/10.1007/978-3-319-49715-0_1
2018
Duczek S; Willberg C; Gabbert U, 2018, 'Higher Order Finite Element Methods', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 117 - 159, http://dx.doi.org/10.1007/978-3-319-49715-0_6
2018
Duczek S; Gabbert U, 2018, 'The Finite Cell Method: A Higher Order Fictitious Domain Approach for Wave Propagation Analysis in Heterogeneous Structures', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 217 - 239, http://dx.doi.org/10.1007/978-3-319-49715-0_9
2018
Duczek S; Gabbert U, 2018, 'Fundamental Principles of the Finite Element Method', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 63 - 90, http://dx.doi.org/10.1007/978-3-319-49715-0_4
2018
Duczek S; Ahmad ZAB; Vivar-Perez JM; Gabbert U, 2018, 'Damping Boundary Conditions for a Reduced Solution Domain Size and Effective Numerical Analysis of Heterogeneous Waveguides', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 199 - 216, http://dx.doi.org/10.1007/978-3-319-49715-0_8
2018
Duczek S; Ahmad ZAB; Vivar-Perez JM; Gabbert U, 2018, 'Hybrid Simulation Methods: Combining Finite Element Methods and Analytical Solutions', in Lammering R; Gabbert U; Sinapius M; Schuster T; Wierach P (ed.), Lamb-Wave Based Structural Health Monitoring in Polymer Composites, Springer, pp. 161 - 198, http://dx.doi.org/10.1007/978-3-319-49715-0_7
2018
Conference Papers
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Koch S; Duczek S; Duvigneau F; Woschke E, 2019, 'Simulation of fluid structure interactions by using high order FEM and SPH', in Onate E; Wriggers P; Zohdi T; Bischoff M; Owen DRJ (eds.), 6th International Conference on Particle-Based Methods. Fundamentals and Applications, PARTICLES 2019, INT CENTER NUMERICAL METHODS ENGINEERING, Barcelona, SPAIN, pp. 795 - 805, presented at 6th International Conference on Particle-Based Methods (PARTICLES) - Fundamentals and Applications, Barcelona, SPAIN, 28 October 2019 - 30 October 2019, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000563501600073&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1
2019
Gabbert U; Hosseini SM; Duczek S, 2014, 'Computational and experimental investigation of ultrasonic wave proagation in sandwich panels', in 21st International Congress on Sound and Vibration 2014, ICSV 2014, pp. 753 - 760
2014
Duczek S; Joulaian M; Düster A; Gabbert U, 2013, 'Simulation of lamb waves using the spectral cell method', in Proceedings of SPIE - The International Society for Optical Engineering, SPIE-INT SOC OPTICAL ENGINEERING, San Diego, CA, presented at Conference on Health Monitoring of Structural and Biological Systems, San Diego, CA, 11 March 2013 - 14 March 2013, http://dx.doi.org/10.1117/12.2009983
2013
Hosseini SMH; Duczek S; Gabbert U, 2013, 'Ultrasonic guided wave propagation in cellular composite plates', in Structural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013, DESTECH PUBLICATIONS, INC, Stanford Univ, Stanford, CA, pp. 941 - 947, presented at 9th International Workshop on Structural Health Monitoring (IWSHM), Stanford Univ, Stanford, CA, 10 September 2013 - 12 September 2013
2013

Award for the best Ph.D. thesis in 2014 (Otto von Guericke University Magdeburg)

  • CVEN3304 - Concrete Structures (T2, 2019)
  • CVEN4308 - Structural Dynamics (T3, 2019)