TY  - JOUR
A1  - Lahmer, Tom
T1  - Optimal experimental design for nonlinear ill-posed problems applied to gravity dams
JF  - Inverse Problems
N2  - Optimal experimental design for nonlinear ill-posed problems applied to gravity dams
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2011
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
T1  - Modified Landweber iterations in a multilevel algorithm applied to inverse problems in piezoelectricity
JF  - Journal of Inverse and Ill-posed Problems
N2  - Modified Landweber iterations in a multilevel algorithm applied to inverse problems in piezoelectricity
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2009
SP  - 585
EP  - 593
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
T1  - Crack identification in hydro-mechanical systems with applications to gravity water dams
JF  - Inverse Problems in Science and Engineering
N2  - Crack identification in hydro-mechanical systems with applications to gravity water dams
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2010
SP  - 1083
EP  - 1101
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Bock, Sebastian
A1  - Hildebrand, Jörg
A1  - Gürlebeck, Klaus
T1  - Non-destructive identification of residual stresses in steel under thermal loadings
JF  - Inverse Problems in Science and Engineering
N2  - Non-destructive identification of residual stresses in steel under thermal loadings
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 1
EP  - 17
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Ilg, J.
A1  - Lerch, Reinhard
T1  - Variance-based sensitivity analyses of piezoelectric models
JF  - Computer Modeling in Engineering & Sciences
N2  - Variance-based sensitivity analyses of piezoelectric models
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2015
SP  - 105
EP  - 126
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Kaltenbacher, Barbara
A1  - Schulz, V.
T1  - Optimal measurement selection for piezoelectric material tensor identification
JF  - Inverse Problems in Science and Engineering
N2  - Optimal measurement selection for piezoelectric material tensor identification.
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2008
U6  - http://dx.doi.org/10.25643/bauhaus-universitaet.3593
SP  - 369
EP  - 387
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Kaltenbacher, Manfred
A1  - Kaltenbacher, Barbara
A1  - Lerch, Reinhard
A1  - Leder, Erich
T1  - Fem-based determination of real and complex elastic, dielectric, and piezoelectric moduli in piezoceramic materials
JF  - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
N2  - Fem-based determination of real and complex elastic, dielectric, and piezoelectric moduli in piezoceramic materials.
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2008
U6  - http://dx.doi.org/10.25643/bauhaus-universitaet.3594
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Knabe, Tina
A1  - Nikulla, Susanne
A1  - Reuter, Markus
T1  - Bewertungsmethoden für Modelle des konstruktiven Ingenieurbaus
BT  - Sonderdruck‐DFG Graduiertenkolleg
JF  - Bautechnik
N2  - Bewertungsmethoden für Modelle des konstruktiven Ingenieurbaus
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2011
SP  - 60
EP  - 64
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Könke, Carsten
A1  - Bettzieche, Volker
T1  - Optimale Positionierung von Messeinrichtungen an Staumauern zur Bauwerksüberwachung
JF  - WASSERWIRTSCHAFT
N2  - Optimale Positionierung von Messeinrichtungen an Staumauern zur Bauwerksüberwachung
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2010
SP  - 16
EP  - 16
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Könke, Carsten
A1  - Bettzieche, Volker
T1  - Optimal positioning of sensors for the monitoring of water dams
JF  - WASSERWIRTSCHAFT
N2  - Optimal positioning of sensors for the monitoring of water dams
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2010
SP  - 16
EP  - 19
ER  - 
TY  - JOUR
A1  - Lahmer, Tom
A1  - Nguyen-Tuan, Long
A1  - Könke, Carsten
A1  - Bettzieche, Volker
T1  - Thermo-hydro-mechanische 3-D-Simulation von Staumauern‐Modellierung und Validierung
JF  - WASSERWIRTSCHAFT
N2  - Thermo-hydro-mechanische 3-D-Simulation von Staumauern‐Modellierung und Validierung
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 27
EP  - 30
ER  - 
TY  - JOUR
A1  - Marzban, Samira
A1  - Lahmer, Tom
T1  - Conceptual implementation of the variance-based sensitivity analysis for the calculation of the first-order effects
JF  - Journal of Statistical Theory and Practice
N2  - Conceptual implementation of the variance-based sensitivity analysis for the calculation of the first-order effects
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 589
EP  - 611
ER  - 
TY  - JOUR
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Rabczuk, Timon
T1  - Detection of flaws in piezoelectric structures using extended FEM
JF  - International Journal for Numerical Methods in Engineering
N2  - Detection of flaws in piezoelectric structures using extended FEM
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2013
SP  - 373
EP  - 389
ER  - 
TY  - JOUR
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Rabczuk, Timon
T1  - Detection of multiple flaws in piezoelectric structures using XFEM and level sets
JF  - International Journal for Numerical Methods in Engineering
N2  - Detection of multiple flaws in piezoelectric structures using XFEM and level sets
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 960
ER  - 
TY  - JOUR
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Rabczuk, Timon
T1  - Detection of multiple flaws in piezoelectric structures using XFEM and level sets
JF  - Computer Methods in Applied Mechanics and Engineering
N2  - Detection of multiple flaws in piezoelectric structures using XFEM and level sets
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2014
SP  - 98
EP  - 112
ER  - 
TY  - JOUR
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Zhuang, Xiaoying
A1  - Park, Harold S.
A1  - Rabczuk, Timon
T1  - Topology optimization of piezoelectric nanostructures
JF  - Journal of the Mechanics and Physics of Solids
N2  - Topology optimization of piezoelectric nanostructures
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 316
EP  - 335
ER  - 
TY  - JOUR
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Zhuang, Xiaoying
A1  - Zi, Goangseup
A1  - Rabczuk, Timon
T1  - Detection of material interfaces using a regularized level set method in piezoelectric structures
JF  - Inverse Problems in Science and Engineering
N2  - Detection of material interfaces using a regularized level set method in piezoelectric structures
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 153
EP  - 176
ER  - 
TY  - JOUR
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Zhuang, Xiaoying
A1  - Zi, Goangseup
A1  - Rabczuk, Timon
T1  - Detection of material interfaces using a regularized level set method in piezoelectric structures
JF  - Inverse Problems in Science and Engineering
N2  - Detection of material interfaces using a regularized level set method in piezoelectric structures
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2015
ER  - 
TY  - JOUR
A1  - Nguyen-Tuan, Long
A1  - Könke, Carsten
A1  - Bettzieche, Volker
A1  - Lahmer, Tom
T1  - Numerical modeling and validation for 3D coupled-nonlinear thermo-hydro-mechanical problems in masonry dams
JF  - Computers & Structures
N2  - Numerical modeling and validation for 3D coupled-nonlinear thermo-hydro-mechanical problems in masonry dams
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2017
SP  - 143
EP  - 154
ER  - 
TY  - JOUR
A1  - Nguyen-Tuan, Long
A1  - Lahmer, Tom
A1  - Datcheva, Maria
A1  - Schanz, Tom
T1  - Global and local sensitivity analyses for coupled thermo‐hydro‐mechanical problems
JF  - International Journal for Numerical and Analytical Methods in Geomechanics
N2  - Global and local sensitivity analyses for coupled thermo‐hydro‐mechanical problems
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
ER  - 
TY  - JOUR
A1  - Nguyen-Tuan, Long
A1  - Lahmer, Tom
A1  - Datcheva, Maria
A1  - Stoimenova, Eugenia
A1  - Schanz, Tom
T1  - A novel parameter identification approach for buffer elements involving complex coupled thermo-hydro-mechanical analyses
JF  - Computers and Geotechnics
N2  - A novel parameter identification approach for buffer elements involving complex coupled thermo-hydro-mechanical analyses
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 23
EP  - 32
ER  - 
TY  - JOUR
A1  - Nguyen-Vinh, H.
A1  - Bakar, I.
A1  - Msekh, Mohammed Abdulrazzak
A1  - Song, Jeong-Hoon
A1  - Muthu, Jacob
A1  - Zi, Goangseup
A1  - Le, P.
A1  - Bordas, Stéphane Pierre Alain
A1  - Simpson, R.
A1  - Natarajan, S.
A1  - Lahmer, Tom
A1  - Rabczuk, Timon
T1  - Extended Finite Element Method for Dynamic Fracture of Piezo-Electric Materials
JF  - Engineering Fracture Mechanics
N2  - We present an extended finite element formulation for dynamic fracture of piezo-electric materials. The method is developed in the context of linear elastic fracture mechanics. It is applied to mode I and mixed mode-fracture for quasi-steady cracks. An implicit time integration scheme is exploited. The results are compared to results obtained with the boundary element method and show excellent agreement.
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.engfracmech.2012.04.025
SP  - 19
EP  - 31
ER  - 
TY  - JOUR
A1  - Reichert, Ina
A1  - Olney, Peter
A1  - Lahmer, Tom
T1  - Combined approach for optimal sensor placement and experimental verification in the context of tower-like structures
JF  - Journal of Civil Structural Health Monitoring
N2  - When it comes to monitoring of huge structures, main issues are limited time, high costs and how to deal with the big amount of data. In order to reduce and manage them, respectively, methods from the field of optimal design of experiments are useful and supportive. Having optimal experimental designs at hand before conducting any measurements is leading to a highly informative measurement concept, where the sensor positions are optimized according to minimal errors in the structures’ models. For the reduction of computational time a combined approach using Fisher Information Matrix and mean-squared error in a two-step procedure is proposed under the consideration of different error types. The error descriptions contain random/aleatoric and systematic/epistemic portions. Applying this combined approach on a finite element model using artificial acceleration time measurement data with artificially added errors leads to the optimized sensor positions. These findings are compared to results from laboratory experiments on the modeled structure, which is a tower-like structure represented by a hollow pipe as the cantilever beam. Conclusively, the combined approach is leading to a sound experimental design that leads to a good estimate of the structure’s behavior and model parameters without the need of preliminary measurements for model updating.
KW  - Strukturmechanik
KW  - Finite-Elemente-Methode
KW  - tower-like structures
KW  - experimental validation
KW  - mean-squared error
KW  - fisher-information matrix
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20210804-44701
UR  - https://link.springer.com/article/10.1007/s13349-020-00448-7
VL  - 2021
IS  - volume 11
SP  - 223
EP  - 234
PB  - Heidelberg
CY  - Springer
ER  - 
TY  - JOUR
A1  - Stein, Peter
A1  - Lahmer, Tom
A1  - Bock, Sebastian
T1  - Synthese und Analyse von gekoppelten Modellen im konstruktiven Ingenieurbau
BT  - Sonderdruck‐DFG Graduiertenkolleg
JF  - Bautechnik
N2  - Synthese und Analyse von gekoppelten Modellen im konstruktiven Ingenieurbau
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2011
SP  - 8
EP  - 11
ER  - 
TY  - JOUR
A1  - Vu-Bac, N.
A1  - Lahmer, Tom
A1  - Keitel, Holger
A1  - Zhao, Jun-Hua
A1  - Zhuang, Xiaoying
A1  - Rabczuk, Timon
T1  - Stochastic predictions of bulk properties of amorphous polyethylene based on molecular dynamics simulations
JF  - Mechanics of Materials
N2  - Stochastic predictions of bulk properties of amorphous polyethylene based on molecular dynamics simulations
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2014
SP  - 70
EP  - 84
ER  - 
TY  - JOUR
A1  - Vu-Bac, N.
A1  - Lahmer, Tom
A1  - Zhang, Yancheng
A1  - Zhuang, Xiaoying
A1  - Rabczuk, Timon
T1  - Stochastic predictions of interfacial characteristic of polymeric nanocomposites (PNCs)
JF  - Composites Part B Engineering
N2  - Stochastic predictions of interfacial characteristic of polymeric nanocomposites (PNCs)
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2014
SP  - 80
EP  - 95
ER  - 
TY  - JOUR
A1  - Vu-Bac, N.
A1  - Lahmer, Tom
A1  - Zhuang, Xiaoying
A1  - Nguyen-Thoi, T.
A1  - Rabczuk, Timon
T1  - A software framework for probabilistic sensitivity analysis for computationally expensive models
JF  - Advances in Engineering Software
N2  - A software framework for probabilistic sensitivity analysis for computationally expensive models
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 19
EP  - 31
ER  - 
TY  - JOUR
A1  - Vu-Bac, N.
A1  - Rafiee, Roham
A1  - Zhuang, Xiaoying
A1  - Lahmer, Tom
A1  - Rabczuk, Timon
T1  - Uncertainty quantification for multiscale modeling of polymer nanocomposites with correlated parameters
JF  - Composites Part B: Engineering
N2  - Uncertainty quantification for multiscale modeling of polymer nanocomposites with correlated parameters
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2015
SP  - 446
EP  - 464
ER  - 
TY  - JOUR
A1  - Vu-Bac, N.
A1  - Silani, Mohammad
A1  - Lahmer, Tom
A1  - Zhuang, Xiaoying
A1  - Rabczuk, Timon
T1  - A unified framework for stochastic predictions of Young's modulus of clay/epoxy nanocomposites (PCNs)
JF  - Computational Materials Science
N2  - A unified framework for stochastic predictions of Young's modulus of clay/epoxy nanocomposites (PCNs)
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2015
SP  - 520
EP  - 535
ER  - 
TY  - JOUR
A1  - Zhang, Chao
A1  - Nanthakumar, S.S.
A1  - Lahmer, Tom
A1  - Rabczuk, Timon
T1  - Multiple cracks identification for piezoelectric structures
JF  - International Journal of Fracture
N2  - Multiple cracks identification for piezoelectric structures
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2017
SP  - 1
EP  - 19
ER  - 
TY  - JOUR
A1  - Zhang, Chao
A1  - Wang, Cuixia
A1  - Lahmer, Tom
A1  - He, Pengfei
A1  - Rabczuk, Timon
T1  - A dynamic XFEM formulation for crack identification
JF  - International Journal of Mechanics and Materials in Design
N2  - A dynamic XFEM formulation for crack identification
KW  - Angewandte Mathematik
KW  - Stochastik
KW  - Strukturmechanik
Y1  - 2016
SP  - 427
EP  - 448
ER  -