Results 101 to 110 of about 10,072,628 (333)

A method of the determination of a developable ruled surface

open access: yes, 1999
Using dual vector calculus, a method of determination of a developable ruled surface is presented. The dual vectorial expression of a developable ruled surface m(t, u) = p(t) + ux(t), p(t) is called the base curve of m(t, u), obtained from the ...
Kose, O
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced 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

Ruled Surface Media Facades

open access: yes, 2014
Traditionally media facades have been created using 2D surfaces, not dissimilar to televisions. As computational architecture continues to explore non-Euclidian shapes it is a logical process to investigate the use and possibilities of emerging complex ...
M. Goldsack, H. Haeusler, D. Nguyen
core  

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

open access: yesAdvanced 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

Mannheim Offsets of Ruled Surfaces

open access: yesMathematical Problems in Engineering, 2009
In a recent works Liu and Wang (2008; 2007) study the Mannheim partner curves in the three dimensional space. In this paper, we extend the theory of the Mannheim curves to ruled surfaces and define two ruled surfaces which are offset in the sense of Mannheim.
Orbay, Keziban   +2 more
openaire   +2 more sources

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann   +8 more
wiley   +1 more source

An Effective Method for Slicing Triangle Meshes Using a Freeform Curve

open access: yesMathematics
Slicing 3D polygonal meshes is a fundamental operation in various applications such as virtual surgery, garment simulation, and game development. Existing methods primarily slice meshes using either a single line or a set of line segments approximating a
Seung-Yong Lee   +2 more
doaj   +1 more source

On polar relative normalizations of ruled surfaces

open access: yesUniversal Journal of Mathematics and Applications, 2018
This paper deals with skew ruled surfaces in the Euclidean space $\mathbb{E}^{3}$ which are equipped with polar normalizations, that is, relative normalizations such that the relative normal at each point of the ruled surface lies on the corresponding ...
Ioanna-Iris Papadopoulou   +1 more
doaj   +1 more source

On projections of ruled and veronese surfaces

open access: yesJournal of Algebra, 1989
A closed subscheme \(X\subset {\mathbb{P}}^ n\) is said to be of maximal rank if for every \(h\geq 1\) the restriction homomorphism \(H^ 0({\mathcal O}_{{\mathbb{P}}^ n}(h))\to H^ 0({\mathcal O}_ X(h))\) is injective or surjective. In many previous papers the authors gave contributions to answer the following question (Hartshorne projection conjecture).
Ballico, E, Ellia, Ph
openaire   +1 more source

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