Results 71 to 80 of about 62,089 (297)

Finite element static, dynamic, and flutter analysis of rotating composite layered plates and shells [PDF]

open access: yes, 1996
This thesis introduces new conforming and non-conforming finite elements for the static and dynamic analysis of rotating composite layered plates and shells.
Attia, Osama Abdel Moniem Mohamied
core  

Dynamic stiffness formulation for free orthotropic plates

open access: yes, 2015
International audienceThis paper presents a procedure for developing the dynamic stiffness matrix of a free orthotropic Kirchhoff plate. The dynamic stiffness matrix is computed for free edge boundary conditions of the plate that allow assembly ...
Ghorbel, O.   +5 more
core   +1 more source

Vibration and buckling of thin-walled composite I-beams with arbitrary lay-ups under axial loads and end moments [PDF]

open access: yes, 2013
A finite element model with seven degrees of freedom per node is developed to study vibration and buckling of thin-walled composite I-beams with arbitrary lay-ups under constant axial loads and equal end moments.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

open access: yesAdvanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo   +7 more
wiley   +1 more source

Vehicle–bridge Coupling Vibration Analysis of Long-span Curved Bending Beam Bridge

open access: yes工程科学与技术, 2019
The impact effects of the vehicle dynamic loads should be considered in designing bridge structures. To calculate the vibration response of long-span curved bending beam bridge caused by vehicle, form function matrix was created by introducing high order
Hailin LU, Heng CAI, Yanxiang YAN
doaj  

Seismic Analysis of the Transportation Portal by the Combined Asymptotic Method

open access: yesScience and Technology of Nuclear Installations, 2011
The author extends the previously proposed combined asymptotic method (CAM) of seismic SSI analysis for the multi-support systems and applies it to the transportation portal as a double-support system (together with the reactor building).
Alexander Tyapin
doaj   +1 more source

Applications of the Dynamic Stiffness Matrix (DSM) Based Direct Damping Identification Method

open access: yes, 2005
Two potential applications of a dynamic stiffness matrix (DSM) based direct damping matrix identification method are presented in this paper. The method was proposed to identify both the mechanism and spatial distribution of damping as a matrix of ...
Gokhan O. Ozgen   +3 more
core   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

open access: yesAdvanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam   +8 more
wiley   +1 more source

Dynamic response of sandwich functionally graded nanoplate under thermal environments and elastic foundations using dynamic stiffness method

open access: yesScientific Reports
The present paper introduces the development of dynamic stiffness method for analyzing small-scale sandwich functionally graded nanoplates resting on elastic foundation in thermal environments.
Saurabh Rai, Ankit Gupta
doaj   +1 more source

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

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