TY - JOUR
AU - Schall, Christoph Wilhelm Theodor
AU - Schöppner, Volker
ID - 29947
IS - 3
JF - Polymer Engineering and Science
KW - Computing Resources Provided by the Paderborn Center for Parallel Computing
TI - Measurement of material degradation in dependence of shear rate, temperature, and residence time
VL - 62
ER -
TY - JOUR
AB - The presented paper aims to characterize the damage and fracture behavior of HX340LAD Micro-Alloyed steels using small punch test. Variations with respect to punch geometries and cutting clearance are made to describe the damage behavior of the material under different loading conditions. Experimental investigations are conducted to identify the crack initiation in the specimens. Furthermore, the numerical FEM simulations are performed to identify the stress state at crack initiation. It is shown that different stress states from shear to biaxial tension can be achieved by changing the geometries of punch and varying the cutting clearance. Moreover, it is presented how changing the configurations can influence the stress state variables: Triaxiality and lode angle parameter.
AU - Otroshi, Mortaza
AU - Meschut, Gerson
ID - 27186
IS - c
JF - Engineering Failure Analysis
KW - Ductile damage
KW - stress state
KW - small punch test
KW - triaxiality
KW - lode angle parameter
SN - 1350-6307
TI - Influence of cutting clearance and punch geometry on the stress state in small punch test
VL - 136
ER -
TY - CONF
AU - Chudalla, Nick
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Schneider, Miriam
AU - Smart, Dominik
ID - 30004
T2 - 22. Kolloquium: Gemeinsame Forschung in der Klebtechnik
TI - Systematisierung einer rechnergestützten Auswertemethode zur Versagensanalyse geklebter Verbindungen
ER -
TY - JOUR
AU - Reineke Matsudo, Bernhard
AU - Sain, Basudeb
AU - Carletti, Luca
AU - Zhang, Xue
AU - Gao, Wenlong
AU - Angelis, Costantino
AU - Huang, Lingling
AU - Zentgraf, Thomas
ID - 29902
IS - 12
JF - Advanced Science
KW - General Physics and Astronomy
KW - General Engineering
KW - Biochemistry
KW - Genetics and Molecular Biology (miscellaneous)
KW - General Materials Science
KW - General Chemical Engineering
KW - Medicine (miscellaneous)
SN - 2198-3844
TI - Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces
VL - 9
ER -
TY - JOUR
AU - Vorderbrüggen, Julian
AU - Köhler, Daniel
AU - Grüber, Bernd
AU - Troschitz, Juliane
AU - Gude, Maik
AU - Meschut, Gerson
ID - 30911
JF - Composite Structures
KW - Civil and Structural Engineering
KW - Ceramics and Composites
SN - 0263-8223
TI - Development of a rivet geometry for solid self-piercing riveting of thermally loaded CFRP-metal joints in automotive construction
VL - 291
ER -
TY - JOUR
AB - The process chain for the manufacturing of sheet metal components in mass production includes various cutting and forming operations, which influence the resulting properties of the parts and therefore subsequent manufacturing steps, such as clamping and joining. It is shown that clamping of the components leads to superimposed residual stresses and geometry changes. Therefore, the part properties differ from the initial state of the semifinished products, which has to be considered in the design of clinched joints. This paper presents an approach for coupled determination of the properties of semifinished and finished parts during deep drawing and clamping as well as their effects on the joint quality during clinching. One method for the effective and efficient determination of the properties of semifinished products and components during production is using process data from the preceding manufacturing processes, which is concretely presented in this work. In addition to the interconnection of the entire production chain, it is necessary to define relevant process data for each individual manufacturing step and to correlate the data with the material properties reliably. Therefore, the cross-process interactions of different steps of the process chain for the manufacturing of sheet metal components and the effect of process variations on subsequent manufacturing steps are investigated. Consequently, the boundary conditions for a mechanical joining process based on data from preceding process steps can be predicted.
AU - Heyser, Per
AU - Wiesenmayer, S
AU - Frey, P
AU - Nehls, T
AU - Scharr, C
AU - Flügge, W
AU - Merklein, M
AU - Meschut, Gerson
ID - 30904
JF - Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
KW - Mechanical Engineering
KW - General Materials Science
SN - 1464-4207
TI - Consideration of the manufacturing history of sheet metal components for the adaptation of a clinching process
ER -
TY - CHAP
AU - Yigitbas, Enes
AU - Sauer, Stefan
AU - Engels, Gregor
ED - Vogel-Heuser, Birgit
ED - Wimmer, Manuel
ID - 29928
T2 - Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective
TI - Self-Adaptive Digital Assistance Systems for Work 4.0
ER -
TY - JOUR
AU - Gao, Wenlong
AU - Sain, Basudeb
AU - Zentgraf, Thomas
ID - 30964
IS - 4
JF - Physical Review Applied
KW - General Physics and Astronomy
SN - 2331-7019
TI - Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces
VL - 17
ER -
TY - JOUR
AB - We study output reference tracking of systems with high relative degree via output feedback only; this is, tracking where the output derivatives are unknown.
To this end, we prove that the conjunction of the funnel pre-compensator with a minimum phase system of arbitrary relative degree yields a system of the same relative degree which is minimum phase as well.
The error between the original system's output and the pre-compensator's output evolves within a prescribed performance funnel; and moreover, the derivatives of the funnel pre-compensator's output are known explicitly.
Therefore, output reference tracking with prescribed transient behavior of the tracking error is possible without knowledge of the derivatives of the original system's output; via funnel control schemes for instance.
AU - Lanza, Lukas Johannes
ID - 23398
JF - Mathematics of Control, Signals, and Systems
TI - Output feedback control with prescribed performance via funnel pre-compensator
ER -
TY - CONF
AU - Hansmeier, Tim
AU - Platzner, Marco
ID - 30971
SN - 0302-9743
T2 - Applications of Evolutionary Computation, EvoApplications 2022, Proceedings
TI - Integrating Safety Guarantees into the Learning Classifier System XCS
VL - 13224
ER -
TY - JOUR
AU - Chudalla, Nick
AU - Meschut, Gerson
AU - Bartley, Aurélie
AU - Wibbeke, Tim Michael
ID - 30915
IS - 4
JF - adhäsion KLEBEN & DICHTEN
KW - Polymers and Plastics
KW - General Chemical Engineering
KW - General Chemistry
SN - 1619-1919
TI - Bauteilschonendes Entfügen struktureller Klebverbindungen durch Kälte
VL - 66
ER -
TY - JOUR
AU - Feldmann, Michael
AU - Padalkin, Andreas
AU - Scheideler, Christian
AU - Dolev, Shlomi
ID - 31060
IS - 4
JF - J. Comput. Biol.
TI - Coordinating Amoebots via Reconfigurable Circuits
VL - 29
ER -
TY - JOUR
AU - Xin, Yang
AU - Piskunen, Petteri
AU - Suma, Antonio
AU - Li, Changyong
AU - Ijäs, Heini
AU - Ojasalo, Sofia
AU - Seitz, Iris
AU - Kostiainen, Mauri A.
AU - Grundmeier, Guido
AU - Linko, Veikko
AU - Keller, Adrian
ID - 30738
JF - Small
KW - Biomaterials
KW - Biotechnology
KW - General Materials Science
KW - General Chemistry
SN - 1613-6810
TI - Environment‐Dependent Stability and Mechanical Properties of DNA Origami Six‐Helix Bundles with Different Crossover Spacings
VL - 18
ER -
TY - CONF
AU - Wende, Marc
AU - Fischer, Florian
AU - Kenig, Eugeny
ID - 31069
T2 - Jahrestreffen der ProcessNet Fachgruppen Fluidverfahrenstechnik und Hochdruckverfahrenstechnik
TI - Experimentelle Untersuchung und Modellvalidierung zur Gravidestillation
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
ID - 31789
T2 - Journal of Applied Polymer Science
TI - Influence of process parameters on the formation of inhalable fiber dust during shredding for mechanical recycling of fiber‐reinforced organo sheets
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
AU - Bünger, J.
AU - Westphal, G.
AU - Rosenkranz, N.
AU - Monsé, C.
ID - 31788
T2 - Kunststoffe international
TI - Fiber Dust Formation during the Recycling of FRP
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
AU - Bünger, J.
AU - Westphal, G.
AU - Rosenkranz, N.
AU - Monsé, C.
ID - 31787
T2 - Kunststoffe
TI - Faserstäube beim FVK-Recycling
ER -
TY - JOUR
AB - Encrypting data before sending it to the cloud ensures data confidentiality but requires the cloud to compute on encrypted data. Trusted execution environments, such as Intel SGX enclaves, promise to provide a secure environment in which data can be decrypted and then processed. However, vulnerabilities in the executed program give attackers ample opportunities to execute arbitrary code inside the enclave. This code can modify the dataflow of the program and leak secrets via SGX side channels. Fully homomorphic encryption would be an alternative to compute on encrypted data without data leaks. However, due to its high computational complexity, its applicability to general-purpose computing remains limited. Researchers have made several proposals for transforming programs to perform encrypted computations on less powerful encryption schemes. Yet current approaches do not support programs making control-flow decisions based on encrypted data.
We introduce the concept of
dataflow authentication
(DFAuth) to enable such programs. DFAuth prevents an adversary from arbitrarily deviating from the dataflow of a program. Our technique hence offers protections against the side-channel attacks described previously. We implemented two flavors of DFAuth, a Java bytecode-to-bytecode compiler, and an SGX enclave running a small and program-independent trusted code base. We applied DFAuth to a neural network performing machine learning on sensitive medical data and a smart charging scheduler for electric vehicles. Our transformation yields a neural network with encrypted weights, which can be evaluated on encrypted inputs in
\( 12.55 \,\mathrm{m}\mathrm{s} \)
. Our protected scheduler is capable of updating the encrypted charging plan in approximately 1.06 seconds.
AU - Fischer, Andreas
AU - Fuhry, Benny
AU - Kußmaul, Jörn
AU - Janneck, Jonas
AU - Kerschbaum, Florian
AU - Bodden, Eric
ID - 31844
IS - 3
JF - ACM Transactions on Privacy and Security
KW - Safety
KW - Risk
KW - Reliability and Quality
KW - General Computer Science
SN - 2471-2566
TI - Computation on Encrypted Data Using Dataflow Authentication
VL - 25
ER -
TY - JOUR
AU - Stöckmann, Nico
ID - 31327
IS - 01
JF - Theoretical Economics Letters
SN - 2162-2078
TI - Conditional Beta-Convergence by Gravity
VL - 12
ER -
TY - GEN
AU - Hillebrandt, Henning
ID - 31947
TI - Verteiltes Berechnen kompakter Routingtabellen in Unit Disk Graphen
ER -