Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Papp, David"'
Materials are often heterogeneous at various length scales, with variations in grain structure, defects, and composition which has a strong influence on the emergent macroscopic plastic behavior. In particular, heterogeneities lead to fluctuations in
Externí odkaz:
http://arxiv.org/abs/2406.09892
Autor:
Papp, Dávid, Agoston, Kolos Csaba
Consider a sequence of real-valued functions of a real variable given by a homogeneous linear recursion with differentiable coefficients. We show that if the functions in the sequence are differentiable, then the sequence of derivatives also satisfie
Externí odkaz:
http://arxiv.org/abs/2406.08512
Autor:
Chang, Charlotte H., Erbaugh, James T., Fajardo, Paola, Lu, Luci, Molnár, István, Papp, Dávid, Robinson, Brian E., Austin, Kemen, Cook-Patton, Susan, Kroeger, Timm, Smart, Lindsey, Castro, Miguel, Cheng, Samantha H., Ellis, Peter W., McDonald, Rob I., Garg, Teevrat, Poor, Erin E., Welker, Preston, Tilman, Andrew R., Wood, Stephen A., Masuda, Yuta J.
Natural climate solutions (NCS) are critical for mitigating climate change through ecosystem-based carbon removal and emissions reductions. NCS implementation can also generate biodiversity and human well-being co-benefits and trade-offs ("NCS co-imp
Externí odkaz:
http://arxiv.org/abs/2405.00079
We prove that every homogeneous convex polyhedron with only one unstable equilibrium (known as a mono-unstable convex polyhedron) has at least $7$ vertices. Although it has been long known that no mono-unstable tetrahedra exist, and mono-unstable pol
Externí odkaz:
http://arxiv.org/abs/2401.17906
Autor:
Davis, Maria M., Papp, Dávid
In (Davis and Papp, 2022), the authors introduced the concept of dual certificates of (weighted) sum-of-squares polynomials, which are vectors from the dual cone of weighted sums of squares (WSOS) polynomials that can be interpreted as nonnegativity
Externí odkaz:
http://arxiv.org/abs/2305.19039
In the study of monostatic polyhedra, initiated by John H. Conway in 1966, the main question is to construct such an object with the minimal number of faces and vertices. By distinguishing between various material distributions and stability types, t
Externí odkaz:
http://arxiv.org/abs/2302.04252
Autor:
Kurunczi-Papp, David, Laurson, Lasse
Publikováno v:
Phys. Rev. Materials 7, 013605 (2023)
Three-dimensional discrete dislocation dynamics simulations are used to study strain-controlled plastic deformation of face-centered cubic aluminium single crystals. After describing the rate and size dependence of the average stress-strain curves, w
Externí odkaz:
http://arxiv.org/abs/2207.07439
Publikováno v:
In Acta Materialia 15 January 2025 283
Publikováno v:
Phys. Rev. Materials 6, 023602 (2022)
Predicting the behaviour of complex systems is one of the main goals of science. An important example is plastic deformation of micron-scale crystals, a process mediated by collective dynamics of dislocations, manifested as broadly distributed strain
Externí odkaz:
http://arxiv.org/abs/2111.07362
Autor:
Kurunczi-Papp, David, Laurson, Lasse
Publikováno v:
Phys. Rev. E 104, 025008 (2021)
We study strain-controlled plastic deformation of crystalline solids via two-dimensional discrete dislocation dynamics simulations. To this end, we characterize the average stress-strain curves as well as the statistical properties of strain bursts a
Externí odkaz:
http://arxiv.org/abs/2108.02978