Results 61 to 70 of about 231 (175)

Pasternak Model Formulation of Elastic Displacements in the Case of a Rigid Circular Foundation

Journal of Asian Architecture and Building Engineering, 2007
The classical Winkler model has often been used in many engineering fields. However, it has some shortcomings, because the adjacent displacements are discontinuous.
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Updated consumer risk assessment of fluoride in food and drinking water including the contribution from other sources of oral exposure

EFSA Journal, Volume 23, Issue 7, July 2025.
Abstract This updated risk assessment evaluated evidence on potential adverse health effects of fluoride related to all sources of oral exposure as mandated by the European Commission. Fluoride benefit assessment was not included. Effects on the central nervous system, thyroid and bone were prioritised.
EFSA Scientific Committee, Susanne Hougaard Bennekou, Ana Allende, Angela Bearth, Josep Casacuberta, Laurence Castle, Tamara Coja, Amélie Crépet, Ron Hoogenboom, Helle Knutsen, Claude Lambré, Søren Saxmose Nielsen, Dominique Turck, Antonio Vicent Civera, Roberto Villa, Holger Zorn, Jacqueline Castenmiller, Karlien Cheyns, Keyvin Darney, Mary Gilbert, Jean‐Charles Leblanc, Haakon Meyer, Evangelia Ntzani, Martin Paparella, Marco Vinceti, Heather Wallace, Maria Anastassiadou, Maria Bastaki, Irene Cattaneo, Luna Greco, Anna Lanzoni, Francesca Riolo, Olaf Mosbach‐Schulz, Andrea Terron, Thorhallur Halldorsson   +34 more
wiley   +1 more source

Analysis of the mechanical behavior of functional gradient porous plates on an elastic foundation

Scientific African
Summary: This study presents an in-depth analysis of the bending behavior of porous functionally graded material (P-FGM) plates resting on a Winkler–Pasternak elastic foundation. Two types of transverse loading are considered: uniform and sinusoidal. The
Karim Fikri, Khalid Adnaoui, Laila Mouakkir   +2 more
doaj   +1 more source

Effects of Aging, Estimated Fitness, and Cerebrovascular Status on White Matter Microstructural Health

Human Brain Mapping, Volume 46, Issue 5, 01 April 2025.
White matter (WM) health declines with age and improves with estimated fitness. However, the effects of age and estimated fitness do not completely overlap spatially. Cerebrovascular health mediates the relationships of WM health with both age and estimated fitness. Males show steeper declines in WM health than females.
Grace M. Clements, Paul Camacho, Daniel C. Bowie, Kathy A. Low, Bradley P. Sutton, Gabriele Gratton, Monica Fabiani   +6 more
wiley   +1 more source

Beam Elements on Linear Variable Two-Parameter Elastic Foundation [PDF]

Bulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section, 2008
The traditional way to overcome the shortcomings of the Winkler foundation model is to incorporate spring coupling by assemblages of mechanical elements such as springs, flexural elements (beams in one-dimension, 1-D, plates in 2-D), shear-only layers ...
Iancu-Bogdan Teodoru, Vasile Muşat
doaj  

Nonlinear post-buckling of thin FGM annular spherical shells under mechanical loads and resting on elastic foundations

Vietnam Journal of Mechanics, 2014
This paper presents an analytical approach to investigate the nonlinear buckling and post-buckling of thin annular spherical shells made of functionally graded materials (FGM) and subjected to mechanical load and resting on Winkler-Pasternak type ...
Vu Thi Thuy Anh, Dao Huy Bich, Nguyen Dinh Duc   +2 more
doaj   +1 more source

Free and Forced Vibration of the Moderately Thick Laminated Composite Rectangular Plate on Various Elastic Winkler and Pasternak Foundations

Shock and Vibration, 2017
An improved Fourier series method (IFSM) is applied to study the free and forced vibration characteristics of the moderately thick laminated composite rectangular plates on the elastic Winkler or Pasternak foundations which have elastic uniform supports ...
Dongyan Shi, Hong Zhang, Qingshan Wang, Shuai Zha   +3 more
doaj   +1 more source

A refined quasi-3D higher-order shear deformation theory for static, free vibration, and buckling of laminated composite plates on kerr-type foundation

Next Materials
Composite laminate plates are widely used in different engineering fields, yet existing higher-order shear theories (HSDTs) often fail to capture shear deformation and the coupled effects of elastic supports, leading to design inaccuracies.
Kamel Eddine Atallah, Djamel Ouinas, Fatima Zohra Zaoui, Hadja Khoussa, Belkacem Achour, Mohd Firdaus Hassan, Januar Parlaungan Siregar   +6 more
doaj   +1 more source

Vibration Response of a Sandwich Higher-Order Micro Beam based on Shear and Normal Deformation Theory on Kerr Elastic Foundation with Thickness Stretching Effect [PDF]

Mechanics of Advanced Composite Structures
The novelty of this study is to consider the vibration analysis of a sandwich structure using shear and normal deformation beam theory (SNDBT) with a porous core and various reinforcement materials, including carbon nanorods (CNRs), graphene platelets ...
Seyed Amir Sajadian, Mehdi Mohammadimehr, Mohsen Irani Rahaghi   +2 more
doaj   +1 more source

Nonlinear analysis of thin rectangular plates on Winkler–Pasternak elastic foundations by DSC–HDQ methods

Applied Mathematical Modelling, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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