Results 31 to 40 of about 13,347 (307)

Variable Stiffness Flexure Structures Enabled by Phase‐Change Gallium and Adhesive Interfacial Locking for Soft Robotic Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim   +2 more
wiley   +1 more source

Technique of multipulse gas load fracturing

open access: yesPetroleum Exploration and Development, 2008
In destressing and fracturing formation with multipulse gas loading, the pressure gradient of deflagration gas along cracks affects crack initiation and extension.
Chun-sheng PU   +3 more
doaj   +1 more source

Safety Assessment of Masonry Arch Bridges Considering the Fracturing Benefit

open access: yesApplied Sciences, 2020
The evolutionary analysis of the fracturing process is an effective tool to assess of the structural bearing capacity of masonry arch bridges. Despite their plain basic assumptions, it must be remarked that elastic analysis and plastic or limit analysis ...
Federico Accornero, Giuseppe Lacidogna
doaj   +1 more source

Fracture toughness characterization of thin Ti/SiC composites [PDF]

open access: yes, 2011
Titanium based alloys reinforced uniaxially with silicon carbide fibres (Ti/SiC) are advanced and innovative materials for aerospace vehicles.
Ma, Wei
core  

Cyclic J-integral using the linear matching method

open access: yes, 2013
The extended version of the latest Linear Matching Method (LMM) has the capability to evaluate the stable cyclic response, which produces cyclic stresses, residual stresses and plastic strain ranges for the low cycle fatigue assessment with cyclic load ...
Chen, Haofeng, Chen, Weihang
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Revisiting classical concepts of Linear Elastic Fracture Mechanics - Part I: The closing �mathematical� crack in an infinite plate and the respective Stress Intensity Factors

open access: yesFracture and Structural Integrity, 2023
This is the first part of a short three-paper series, aiming to revisit some classical concepts of Linear Elastic Fracture Mechanics. The motive of this first paper is to highlight some controversial issues, related to the unnatural overlapping of the ...
Christos F. Markides   +1 more
doaj   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney   +2 more
wiley   +1 more source

A Phantom-Node Method with Edge-Based Strain Smoothing for Linear Elastic Fracture Mechanics

open access: yesJournal of Applied Mathematics, 2013
This paper presents a novel numerical procedure based on the combination of an edge-based smoothed finite element (ES-FEM) with a phantom-node method for 2D linear elastic fracture mechanics. In the standard phantom-node method, the cracks are formulated
N. Vu-Bac   +7 more
doaj   +1 more source

Enrichment of the Boundary Element Method through the Partition of Unity Method for Fracture Analysis using Local and Global Formulations [PDF]

open access: yes, 2010
The present thesis proposes an innovative technique of applying enrichment to the Boundary Element Method to allow accurate analysis of 2D crack problems. An overview of fracture mechanics is given, with particular emphasis given to numerical methods and
SIMPSON, ROBERT
core  

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