Results 111 to 120 of about 2,489,716 (309)

Forming limit diagrams [PDF]

open access: yes, 2018
In this work, the Marciniak and Kuczynski model (MK) will be reviewed and will be generalized to a more general approach for the calculation of forming limit diagrams. In the new model we will account for all directions of the imperfection.
Issa, Jimmy
core   +1 more source

Artificial neural network-based prediction of complete forming limit curves for steel in sheet metal forming

open access: yesJournal of Alloys and Metallurgical Systems
Forming Limit Curve (FLC) is crucial for predicting material formability and preventing defects in the sheet metal forming industry. Traditionally, FLCs are determined through Nakajima and Marciniak tests, which assess the material's response to various ...
Shivesh Kumar Sharan   +3 more
doaj   +1 more source

The content of landscape form [the limits of formalism] [PDF]

open access: yesPaisagem e Ambiente, 2001
Os valores contidos por trás da apreciação e da avaliação da paisagem podem trazer também a questão principal do paisagismo aqui, a base da arquitetura paisagística é colocada como um material bruto, transformado em design, base da qual poderão derivar prazeres e ou significado.
openaire   +4 more sources

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

The analysis of forming limit in re-penetration process of the hole-flanging of sheet metal

open access: yes, 2011
A methodology for formulating an elasto-plastic finite element model was developed to analyze the direct penetration and re-penetration in the hole-flanging process.
Li, Ching-Lun; Huang, You-Min; Tsai, Yi-Wei
core   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Aproximação inversa e otimização topológica aplicados à determinação de leiaute de Tailored Blanks [PDF]

open access: yes, 2007
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaOs blanks soldados ou tailored blanks consistem de peças de aços de diferentes espessuras, classes de resistência ou ...
Silveira, Márcio Eduardo
core  

Sheet metal forming limit predictions based on advanced constitutive equations

open access: yes, 2019
The present paper aims at analysing the strain and stress-based forming limits predicted by an advanced sheet metal forming limit model. The onset of localized necking is simulated through the Marciniak-Kuczinsky (MK) analysis [1]., which connects the ...
Barlat, F   +3 more
core   +1 more source

Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2014
More recently, Titanium and aluminum alloys are gaining more interests to be implemented in hydro-forming applications. It is necessary to predict forming limits for these sheet alloys.
Milad Janbakhsh   +2 more
doaj  

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

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