Results 101 to 110 of about 194,540 (292)

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

ANALYSIS OF DISC SPRING STIFFNESS DEGRADATION INDUCED BY FATIGUE DAMAGE

open access: yesJixie qiangdu
The disc spring will bear the cyclic displacement load during using, resulting in the fatigue damage and the stiffness degradation of the disc spring, which causes irreversible influence on the compensation function when accumulated sufficiently to cause
ZHANG Xiaoguang   +2 more
doaj  

Numerical Implementation of a Critical State Model for Soft Rocks [PDF]

open access: yes, 2018
This paper details the basic tasks for the numerical implementation of a simple elasto-plastic critical state model for bonded materials (i.e. soft rocks-hard soils) into the finite element program SNAC developed at the University of Newcastle in ...
Garitte B.   +9 more
core   +1 more source

Bioinspired Bromination Enables Extensible, Strain‐Stiffening Resilin Peptide Scaffolds with Tunable Degradation

open access: yesAdvanced Functional Materials, EarlyView.
Bioinspired bromination of a resilin‐derived peptide enables the fabrication of electrospun nanofibrous scaffolds that uniquely combine strain‐stiffening elasticity, proteolytic stability, and antioxidant functionality. These brominated peptide–gelatin hybrids mimic the extensibility of natural elastomers, demonstrating tunable mechanical resilience ...
Elisa Marelli   +6 more
wiley   +1 more source

Influences of fatigue stiffness degradation of in-service concrete T-beams on natural vibration frequency

open access: yesJournal of Asian Architecture and Building Engineering
In order to obtain the fatigue stiffness degradation law of in-service concrete T-beam and carry out fatigue life prediction, a dual-stage stiffness degradation model considering cracks was established for T-beams and formulas for calculating the ...
Xin-Dai Zuo   +3 more
doaj   +1 more source

Constitutive model for bimodular elastic damage of concrete

open access: yesLatin American Journal of Solids and Structures
An elastic damage model for concrete has been proposed considering damage-induced bimodularity. A scalar damage parameter has been chosen to quantify the damage. Expressions for the material compliance tensor components have been derived from the assumed
Ravi Raveendra Babu   +2 more
doaj   +1 more source

Damage accumulation and stiffness degradation in composite laminates

open access: yes, 1999
In the presented thesis analytical modeling of elastic properties degradation and modeling of damage evolution in composite laminates is performed. Transverse cracking initiation on a fiber/matrix level is briefly studied by testing model composites and cross-ply laminates.
openaire   +2 more sources

Polyetheretherketone as a Biomaterial for Spinal Applications [PDF]

open access: yes, 2006
Threaded lumbar interbody spinal fusion devices (TIBFD) made from titanium have been reported to be 90% effective for single-level lumbar interbody fusion, although radiographic determination of fusion has been intensely debated in the literature.
Estes, Bradley T.   +5 more
core   +1 more source

Domain‐Wall‐Free Sliding Ferroelectricity in Fully Commensurate 3R Transition Metal Dichalcogenide Bilayers

open access: yesAdvanced Functional Materials, EarlyView.
It is reported that the ferroelectric switching behavior of rhombohedral (3R) phase transition metal dichalcogenide (TMD) bilayers strongly depends on their domain structures. Single‐domain TMDs (SD‐TMDs) with domain‐wall‐free structures exhibit robust and stable polarization switching, whereas poly‐domain TMDs (PD‐TMDs) with randomly distributed ...
Ji‐Hwan Baek   +8 more
wiley   +1 more source

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