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Soft computing applications in dynamic model identification of polymer extrusion process [PDF]

open access: green, 2004
This paper proposes the application of soft computing to deal with the constraints in conventional modelling techniques of the dynamic extrusion process.
Ahmad Lotfi   +9 more
core   +2 more sources

Exploration of the influence of different biomimetic designs of 3D printed multi-material artificial spinal disc on the natural mechanics restoration

open access: yesMaterials & Design, 2021
One of the great challenges of artificial spinal disc (ASD) design lies in the reproduction of the complex mechanics of an intervertebral disc (IVD) that is characterized by a viscoelastic, nonlinear, and anisotropic behavior. Although the development of
Zhiyang Yu   +3 more
doaj   +1 more source

Dataset of angular and compressive responses of biomimetic artificial spinal discs fabricated using multi-material additive manufacturing

open access: yesData in Brief, 2021
To explore the influence of different biomimetic designs and multi-material additive manufacturing on the performance of a multi-material artificial spinal disc (ASD) in terms of restoring natural mechanics, four biomimetic ASD designs together with a ...
Zhiyang Yu   +3 more
doaj   +1 more source

Algorithmic design of origami mechanisms and tessellations

open access: yesCommunications Materials, 2022
Origami is a promising source of inspiration in designing foldable structures and reconfigurable metamaterials. Here, building on exact folding kinematic conditions, an algorithmic design of rigidly-foldable origami structures is presented, allowing the ...
Andreas Walker, Tino Stankovic
doaj   +1 more source

Industrial evaluation of design heuristics for additive manufacturing

open access: yesDesign Science, 2022
Additive manufacturing (AM) has gained prominence over the last 15 years and become a viable manufacturing option. Since there is great industrial interest to implement serial production of products using AM, the education of engineers in design for ...
Alexandra Blösch-Paidosh, Kristina Shea
doaj   +1 more source

Computational design of multi-stable, reconfigurable surfaces

open access: yesMaterials & Design, 2021
A planar surface that can be reconfigured into several 3D target shapes is of importance in numerous fields at different length scales, e.g. aeronautical systems, buildings, and in medicine.
Tian Chen, Kristina Shea
doaj   +1 more source

Redeployable, 4D printed wave spring actuators

open access: yesMaterials & Design, 2023
Wave springs are a novel type of axial compression spring that offer complete axial load transmission and a significant free height reduction when compared to coil springs.
Joël N. Chapuis, Kristina Shea
doaj   +1 more source

3D-printing textiles: multi-stage mechanical characterization of additively manufactured biaxial weaves

open access: yesMaterials & Design, 2023
3D printing allows the fabrication of complex microstructures that would traditionally require specialized machinery. In the fabrication of textiles, 3D printing may enable unique yarn structures, greater manufacturing flexibility and facilitate the ...
M. Wirth, K. Shea, T. Chen
doaj   +1 more source

Phase field modelling of hopper crystal growth in alloys

open access: yesScientific Reports, 2023
Here we use phase field to model and simulate “hopper” crystals, so named because of their underlying cubic structure but with a hopper-like depression on each of the six faces.
P. C. Bollada   +2 more
doaj   +1 more source

Automatic Clustering and Classification of Coffee Leaf Diseases Based on an Extended Kernel Density Estimation Approach

open access: yesPlants, 2023
The current methods of classifying plant disease images are mainly affected by the training phase and the characteristics of the target dataset. Collecting plant samples during different leaf life cycle infection stages is time-consuming.
Reem Ibrahim Hasan   +3 more
doaj   +1 more source

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