Results 41 to 50 of about 508 (224)

Design and Testing of Impacted Stiffened CFRP Panels under Compression with the VERTEX Test Rig

Aerospace, 2023
Aeronautical composite primary structures must evidence sufficient residual strength in the presence of damage for compliance with damage tolerance requirements.
Florent Grotto, Christophe Bouvet, Bruno Castanié, Joël Serra   +3 more
doaj   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

The Effects of Ply Orientation on Nonlinear Buckling of Aircraft composite Stiffened Panel

Fracture and Structural Integrity, 2019
In this paper, gradual demand for curved, stiffened panels composite emerged from carbon fiber reinforced plastics (CFRP); these are structures that are frequently used in aerospace engineering.
Ouadia Mouhat, Abdelmajid Bybi, Ahmed El Bouhmidi, Mohamed Rougui   +3 more
doaj  

Progressive Failure Analysis of Composite Stiffened Panels [PDF]

47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference<BR> 14th AIAA/ASME/AHS Adaptive Structures Conference<BR> 7th, 2006
A new progressive failure analysis capability for stiffened composite panels has been developed based on the combination of the HyperSizer stiffened panel design/analysis/optimization software with the Micromechanics Analysis Code with Generalized Method of Cells (MAC/GMC).
Brett Bednarcyk, Phillip Yarrington, Craig Collier, Steven Arnold   +3 more
openaire   +1 more source

Universal Gripper for Industrial Manipulation With Enhanced Rigid Mechanics and Self‐Adaptable Fingers

Advanced Robotics Research, EarlyView.
An enhanced universal gripper combining rigid mechanics with self‐adaptable fingers is presented for industrial automation. The novel six‐bar linkage with integrated compliant pad eliminates mechanical interference while enabling passive shape adaptation.
Muhammad Usman Khalid, Nirmal Kumar Ravikumar, Mattia Frascio, Sumanth Nagalakunta, Alessandro Seitone, Benoît Lévesque, Alessandro Zanella, Matteo Zoppi   +7 more
wiley   +1 more source

Dynamic buckling of laminated composite stringer stiffened CFRP panels under axial compression

MATEC Web of Conferences, 2018
In this work, the dynamic buckling of stiffened panels is evolved numerically through a nonlinear incremental expression through making use of a specific time integration procedure via the finite element software program.
Ouadia Mouhat, Abdellatif Khamlichi, Boubel Hasnae, Elmrabet Oumnia, Rougui Mohamed, Echebba El Mehdi, Bouhmidi Ahmed El   +6 more
doaj   +2 more sources

Concurrent optimization of stacking sequence and stiffener layout of a composite stiffened panel

Engineering Optimization, 2018
This article is to optimally design laminated composite stiffened panels by optimizing both stacking sequences of the panel skin and stiffeners as well as the layout of stiffeners. Starting from initial designs of stiffener layout and stacking sequences for each stiffener and the panel skin, the problem is formulated with discrete and continuous ...
Haichao An, Shenyan Chen, Hai Huang
openaire   +1 more source

Perivascular Matrix Densification Dysregulates Angiogenesis and Activates Pro‐Inflammatory Endothelial Cells

Advanced Science, EarlyView.
Perivascular matrix densification promotes the emergence of aberrant endothelial tip cells (ATECs) that invade and persist within fibrotic microenvironments. Using in vivo lineage tracing and a human microvessel model, this study shows that fibrous matrix cues destabilize VE‐cadherin–mediated junctions to gate TGF‐β signaling, inducing a pro ...
Jingyi Xia, William Y. Wang, Kyle A. Jacobs, Kairav Maniar, Daphne Lin, Evan H. Jarman, Daniel L. Matera, Kristen Loesel, Christopher D. Davidson, Harrison L. Hiraki, Xiaotian Tan, Eve H. Shikanov, Robert N. Kent, Carole Parent, Xudong Fan, Ariella Shikanov, Matthew L. Kutys, Brendon M. Baker   +17 more
wiley   +1 more source

Research on Compression Buckling and Failure Characteristics of Composite Fuselage Cap-stringer Stiffened Panel

Hangkong gongcheng jinzhan, 2021
Carbon fiber reinforced polymer(CFRP)is widely used in the design of aircraft fuselage panel.It is important to study the buckling and failure characteristics of panel to improve the efficiency of structural design.The compression buckling load,failure ...
LI Zhen, CHENG Liping
doaj   +1 more source

Developmentally Inspired Bioprinting of Nascent Multicellular Human Heart Tissue Through in Situ Differentiation and Morphogenesis of iPSCs

Advanced Science, EarlyView.
A developmentally inspired bioprinting approach enables the fabrication of pluripotent tissues that undergo shape‐morphing and in situ cardiac lineage specification. This method employs embedded bioprinting to deposit iPSCs within soft granular hydrogels to create pluripotent tissue constructs that undergo cell‐mediated shape morphogenesis.
Ankita Pramanick, Juhi Chakraborty, Orlaith Kennedy, Hey Wei Wong, Sogol Kianersi, Daniel Kelly, Vasileios Sergis, Abhay Pandit, Andrew C. Daly   +8 more
wiley   +1 more source