Search Results - "UNGER, F."

Multiscale Modeling of Concrete by Unger, Jörg F, Eckardt, Stefan

“…In this paper, a mesoscale model of concrete is presented, which considers particles, matrix material and the interfacial transition zone (ITZ) as separate…”
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Modelling of cohesive crack growth in concrete structures with the extended finite element method by Unger, Jörg F., Eckardt, Stefan, Könke, Carsten

“…In this paper, the extended finite element method (XFEM) is used for a discrete crack simulation of concrete using an adaptive crack growth algorithm…”
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Efficient higher-order cycle jump integration of a continuum fatigue damage model by Titscher, Thomas, Unger, Jörg F.

“…•Formulation of fatigue as ODE of the history variables.•Adaptive Runge–Kutta schemes accelerate fatigue simulations by factor of 50–100.•Novel fatigue model…”
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Explicit dynamics in impact simulation using a NURBS contact interface by Otto, Peter, De Lorenzis, Laura, Unger, Jörg F.

“…Summary In this paper, the impact problem and the subsequent wave propagation are considered. For the contact discretization an intermediate non‐uniform…”
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Multiscale modeling of linear elastic heterogeneous structures via localized model order reduction by Diercks, Philipp, Veroy, Karen, Robens‐Radermacher, Annika, Unger, Jörg F.

“…In this article, a methodology for fine scale modeling of large scale linear elastic structures is proposed, which combines the variational multiscale method,…”
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Regarding “Eteplirsen for the treatment of Duchenne muscular dystrophy” by Unger, Ellis F., Califf, Robert M.

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A Three-Phase Transport Model for High-Temperature Concrete Simulations Validated with X-ray CT Data by Pohl, Christoph, Šmilauer, Vít, Unger, Jörg F.

“…Concrete exposure to high temperatures induces thermo-hygral phenomena, causing water phase changes, buildup of pore pressure and vulnerability to spalling. In…”
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Implicit–Explicit Integration of Gradient-Enhanced Damage Models by Titscher, Thomas, Oliver, Javier, Unger, Jörg F

“…AbstractQuasi-brittle materials exhibit strain softening. Their modeling requires regularized constitutive formulations to avoid instabilities on the material…”
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Coupling a NURBS contact interface with a higher order finite element discretization for contact problems using the mortar method by Otto, Peter, De Lorenzis, Laura, Unger, Jörg F.

“…In this paper, a contact problem between two bodies, discretized by finite elements, is solved by adding an auxiliary NURBS layer between the bodies. The…”
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Bayesian inference for random field parameters with a goal-oriented quality control of the PGD forward model’s accuracy by Coelho Lima, Isabela, Robens-Radermacher, Annika, Titscher, Thomas, Kadoke, Daniel, Koutsourelakis, Phaedon-Stelios, Unger, Jörg F.

“…Numerical models built as virtual-twins of a real structure (digital-twins) are considered the future of monitoring systems. Their setup requires the…”
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From adaptive licensing to adaptive pathways: Delivering a flexible life-span approach to bring new drugs to patients by Eichler, H-G, Baird, LG, Barker, R, Bloechl-Daum, B, Børlum-Kristensen, F, Brown, J, Chua, R, Del Signore, S, Dugan, U, Ferguson, J, Garner, S, Goettsch, W, Haigh, J, Honig, P, Hoos, A, Huckle, P, Kondo, T, Le Cam, Y, Leufkens, H, Lim, R, Longson, C, Lumpkin, M, Maraganore, J, O'Rourke, B, Oye, K, Pezalla, E, Pignatti, F, Raine, J, Rasi, G, Salmonson, T, Samaha, D, Schneeweiss, S, Siviero, PD, Skinner, M, Teagarden, JR, Tominaga, T, Trusheim, MR, Tunis, S, Unger, TF, Vamvakas, S, Hirsch, G

“…The concept of adaptive licensing (AL) has met with considerable interest. Yet some remain skeptical about its feasibility. Others argue that the focus and…”
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From concrete mixture to structural design—a holistic optimization procedure in the presence of uncertainties by Agrawal, Atul, Tamsen, Erik, Unger, Jörg F., Koutsourelakis, Phaedon-Stelios

“…Abstract We propose a systematic design approach for the precast concrete industry to promote sustainable construction practices. By employing a holistic…”
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Piezo regulates epithelial topology and promotes precision in organ size control by Mim, Mayesha Sahir, Kumar, Nilay, Levis, Megan, Unger, Maria F., Miranda, Gabriel, Gazzo, David, Robinett, Trent, Zartman, Jeremiah J.

“…Mechanosensitive Piezo channels regulate cell division, cell extrusion, and cell death. However, systems-level functions of Piezo in regulating organogenesis…”
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Constitutive modeling of creep-fatigue interaction for normal strength concrete under compression by Kindrachuk, Vitaliy M., Thiele, Marc, Unger, Jörg F.

“…•A constitutive damage model for concrete under compressive fatigue is presented.•The model is based on a viscous formulation which induces damage.•Fatigue and…”
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PGD in thermal transient problems with a moving heat source: A sensitivity study on factors affecting accuracy and efficiency by Strobl, Dominic, Unger, Jörg F., Ghnatios, Chady, Robens‐Radermacher, Annika

“…Thermal transient problems, essential for modeling applications like welding and additive metal manufacturing, are characterized by a dynamic evolution of…”
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Adaptive Licensing: Taking the Next Step in the Evolution of Drug Approval by Eichler, H‐G, Oye, K, Baird, L G, Abadie, E, Brown, J, Drum, C L, Ferguson, J, Garner, S, Honig, P, Hukkelhoven, M, Lim, J C W, Lim, R, Lumpkin, M M, Neil, G, O'Rourke, B, Pezalla, E, Shoda, D, Seyfert‐Margolis, V, Sigal, E V, Sobotka, J, Tan, D, Unger, T F, Hirsch, G

“…Traditional drug licensing approaches are based on binary decisions. At the moment of licensing, an experimental therapy is presumptively transformed into a…”
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Efficient bead-on-plate weld model for parameter estimation towards effective wire arc additive manufacturing simulation by Strobl, Dominic, Unger, Jörg F., Ghnatios, Chady, Klawonn, Alexander, Pittner, Andreas, Rethmeier, Michael, Robens-Radermacher, Annika

“…Despite the advances in hardware and software techniques, standard numerical methods fail in providing real-time simulations, especially for complex processes…”
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A Fourier transformation‐based method for gradient‐enhanced modeling of fatigue by Kindrachuk, Vitaliy M., Titscher, Thomas, Unger, Jörg F.

“…Summary A key limitation of the most constitutive models that reproduce a degradation of quasi‐brittle materials is that they generally do not address issues…”
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Standardized definitions for evaluation of heart failure therapies: scientific expert panel from the Heart Failure Collaboratory and Academic Research Consortium by Abraham, William T., Psotka, Mitchell A., Fiuzat, Mona, Filippatos, Gerasimos, Lindenfeld, JoAnn, Mehran, Roxana, Ambardekar, Amrut V., Carson, Peter E., Jacob, Richard, Januzzi, James L., Konstam, Marvin A., Krucoff, Mitchell W., Lewis, Eldrin F., Piccini, Jonathan P., Solomon, Scott D., Stockbridge, Norman, Teerlink, John R., Unger, Ellis F., Zeitler, Emily P., Anker, Stefan D., O'Connor, Christopher M.

“…ABSTRACT The Heart Failure Academic Research Consortium is a partnership between the Heart Failure Collaboratory (HFC) and Academic Research Consortium (ARC),…”
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Branched polyesters based on poly[vinyl-3-(dialkylamino)alkylcarbamate- co -vinyl acetate- co -vinyl alcohol]-graft-poly( d , l -lactide- co -glycolide): Effects of polymer structure on cytotoxicity by Unger, F, Wittmar, M, Kissel, T

“…Abstract Branched polyesters of the general structure poly[vinyl-3-(dialkylamino)alkylcarbamate- co -vinyl acetate- co -vinyl alcohol]-graft-poly( d , l…”
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