TY  - JOUR
A1  - Pham, Phu Tinh
A1  - Staat, Manfred
T1  - FEM-based shakedown analysis of hardening structures
JF  - Asia Pacific journal on computational engineering
N2  - This paper develops a new finite element method (FEM)-based upper bound algorithm for limit and shakedown analysis of hardening structures by a direct plasticity method. The hardening model is a simple two-surface model of plasticity with a fixed bounding surface. The initial yield surface can translate inside the bounding surface, and it is bounded by one of the two equivalent conditions: (1) it always stays inside the bounding surface or (2) its centre cannot move outside the back-stress surface. The algorithm gives an effective tool to analyze the problems with a very high number of degree of freedom. Our numerical results are very close to the analytical solutions and numerical solutions in literature.
Y1  - 2014
U6  - http://dx.doi.org/10.1186/2196-1166-1-4
SN  - 2196-1166 (E-Journal)
IS  - 1
SP  - Article No. 4
PB  - SpringerOpen
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Pham, Phu Tinh
A1  - Staat, Manfred
T1  - A simplification for shakedown analysis of hardening structures
T2  - Conference proceedings of the YIC GACM 2015 : 3rd ECCOMAS Young Investigators Conference and 6th GACM Colloquium on Computational Mechanics , Aachen , Germany, 20.07.2015 - 23.07.2015 / ed.: Stefanie Elgeti ; Jaan-Willem Simon
Y1  - 2015
SP  - 1
EP  - 4
PB  - RWTH Aachen University
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Pham, Phu Tinh
A1  - Nguyen, Thanh Ngoc
A1  - Staat, Manfred
T1  - FEM based shakedown analysis of hardening structures
T2  - Proceedings International Conference on Advances in Computational Mechanics (ACOME)
Y1  - 2012
N1  - International Conference on Advances in Computational Mechanics (ACOME), August 14-16, 2012, Ho Chi Minh City, Vietnam
SP  - 870
EP  - 882
ER  - 
TY  - THES
A1  - Pham, Phu Tinh
T1  - Upper bound limit and shakedown analysis of elastic-plastic bounded linearly kinematic hardening structures
Y1  - 2011
N1  - Aachen, Techn. Hochsch., Diss., 2011
PB  - RWTH Aachen University
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Peters, H.
A1  - Ziemons, Karl
A1  - Dammers, J.
A1  - Müller-Veggian, Mattea
ED  - Nenonen, Jukka
T1  - Continuous head motion detection during MEG measurement using head location coils
T2  - Proceedings of the 12th International Conference on Biomagnetism : August 13 - 17, 2000, Helsinki University of Technology, Espoo, Finland
Y1  - 2001
SN  - 951-22-5401-8
N1  - Biomag <12, 2000, Espoo> ; Teknillinen Korkeakoulu <Helsinki> ; International Conference on Biomagnetism <12, 2000, Espoo>
PB  - Helsinki Univ. of Technology, Laboratory of Biomedical Engineering
CY  - Espoo
ER  - 
TY  - JOUR
A1  - Pawelke, Siegfried
A1  - Schmitt, W.
A1  - Meissen, Th.
T1  - Aachen 3D finger. 3D digitizer for application in dentistry / Schmitt, W. ; Pawelke, S. ; Meissen, Th.
JF  - Biomedizinische Technik. 35 (1990), H. 4
Y1  - 1990
SN  - 0013-5585
SP  - 69
EP  - 71
ER  - 
TY  - JOUR
A1  - Pawelke, Siegfried
A1  - Butzer, Paul L.
T1  - Semi-groups and resolvent operators
JF  - Archive for Rational Mechanics and Analysis
KW  - Resolvent Operator
KW  - Electromagnetism
KW  - Complex System
KW  - Neural Network
KW  - Nonlinear Dynamics
Y1  - 1968
U6  - http://dx.doi.org/10.1007/BF00250941
SN  - 0003-9527
VL  - 30
IS  - 2
SP  - 127
EP  - 147
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Pawelke, Siegfried
T1  - Weak smoothness conditions for the uniform convergence of Fourier-Jacobi series
JF  - Functiones et Approximatio. Commentarii Mathematici. 9 (1980)
Y1  - 1980
SN  - 0208-6573
N1  - Zentralblatt MATH:  http://www.emis.de/MATH-item?0471.42018
SP  - 9
EP  - 13
ER  - 
TY  - JOUR
A1  - Pawelke, Siegfried
T1  - Note on Jackson and Bernstein type approximation theorems in the case of approximation by algebraic polynomial in the spaces L and C
JF  - Studia Scientiarum Mathematicarum Hungarica. 36 (2000), H. 3-4
Y1  - 2000
SN  - 0081-6906
SP  - 353
EP  - 358
ER  - 
TY  - JOUR
A1  - Parl, C.
A1  - Larue, H.
A1  - Streun, M.
A1  - Ziemons, Karl
T1  - Double-side-readout technique for SiPM-matrices
JF  - 2010 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)
N2  - In our case the double-side-method is used to minimize the complexity of a matrix-readout. Here the number of channels is reduced to 2√N̅. It is also possible to benefit from the method in a single pixel readout system. One signal can be used to measure position and energy of the event, the other one can be applied to a fast trigger-circuit at the same time. In a next step we will investigate timing behavior and electrical crosstalk of the circuit.
Y1  - 2011
SN  - 1095-7863
SP  - 1486
EP  - 1487
PB  - IEEE
CY  - New York
ER  -