Results 71 to 80 of about 259,959 (310)
Invisibility and inverse problems [PDF]
Bulletin of the American Mathematical Society, 2008 We describe recent theoretical and experimental progress on making objects invisible. Ideas for devices that would have once seemed fanciful may now be at least approximately realized physically, using a new class of artificially structured materials, metamaterials . The equations that govern
Greenleaf, Allan +3 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
An inverse problem for Helmholtz's equation
International Journal of Mathematics and Mathematical Sciences, 1987 The refraction coefficient in Helmholtz's equation is found from the knowledge of a family of the solutions to this equation on two lines.
A. G. Ramm
doaj +1 more source
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
Row stochastic inverse eigenvalue problem
Journal of Inequalities and Applications, 2011 In this paper, we give sufficient conditions or realizability criteria for the existence of a row stochastic matrix with a given spectrum Λ = {λ1, ..., λn} = Λ1 ∪ ⋯ ∪ Λm ∪ Λm+1, m > 0; where (pk ...
Chang-qing Xu, Shang-jun Yang
doaj
Feedback methods for inverse simulation of dynamic models for engineering systems applications [PDF]
, 2011 Inverse simulation is a form of inverse modelling in which computer simulation methods are used to find the time histories of input variables that, for a given model, match a set of required output responses.
David J. Murray-Smith +1 more
core +1 more source
Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source
Stability of solutions for some inverse problems
Electronic Journal of Differential Equations, 2012 In this article we establish three stability results for some inverse problems. More precisely we consider the following boundary value problem: $Delta u + lambda u + mu = 0$ in $Omega$, $u = 0$ on $partialOmega$, where $lambda$ and $mu$ are real ...
Robert Dalmasso
doaj
Periodic waves in microstructured solids and inverse problems
Mathematical Modelling and Analysis, 2012 Conditions for the existence of periodic and solitary waves in 1D microstructured solid of Mindlin type are deduced. Inverse problems to determine material properties are solved.
Ivan Sertakov, Jaan Janno
doaj +1 more source
Applications of inverse simulation to a nonlinear model of an underwater vehicle [PDF]
, 2008 Inverse simulation provides an important alternative to conventional simulation and to more formal mathematical techniques of model inversion. The application of inverse simulation methods to a nonlinear dynamic model of an unmanned underwater ...
Murray-Smith, D., Lu, L., McGookin, E.
core