Results 51 to 60 of about 16,167 (158)
The vascular bundle–inspired structure design involved developing a unit cell and rotating it by 45° for 2D/3D assembly. Unit cells varied in strut thickness (t) from 0.2 to 1.15 mm. Finite element model (FEM) analysis under quasi‐static compression yielded stress–strain curves and stress/strain maps.
Fredrick Mwema, Ndivhuwo Ndou
wiley +1 more source
Three-Dimensional Imaging Technology of Pipelines Based on NURBS Surface
Three-dimensional imaging of pipeline is the most intuitive but also the most complicated way to process deformation detection data, and the three-dimensional reconstruction algorithm of surfaces is the key to achieving three-dimensional imaging of ...
Peng He +4 more
doaj
The Quick Measure of a Nurbs Surface Curvature for Accurate Triangular Meshing
NURBS surfaces are the most widely used surfaces for three-dimensional models in CAD/ CAE programs. When a model for FEM calculation is prepared with a CAD program it is inevitable to mesh it finally. There are many algorithms for meshing planar regions.
Kniat Aleksander
doaj +1 more source
Rotary 4D Printing of Programmable Metamaterials on Sustainable 4D Mandrel
The paper introduces open, rotary 4D printing of programmable tubular metamaterials. It presents an open, non‐planar path‐to‐G‐code pipeline and shape‐changing rotary mandrel that enable support‐free fabrication and multi‐stimuli actuation. Experiments and FEA validate the mentioned features and stress redistribution.
Hesam Soleimanzadeh +4 more
wiley +1 more source
This study confronts core challenges in concrete additive manufacturing (AM) for architectural applications. It specifically addresses the design–fabrication disconnection and absence of regulatory frameworks by proposing a multidisciplinary framework integrating parametric design, structural optimization, and robotic construction.
Songlin Bai +5 more
wiley +1 more source
Although the uniform theory of diffraction (UTD) could be theoretically applied to arbitrarilyshaped convex objects modeled by nonuniform rational B-splines (NURBS), one of the great challenges in calculation of the UTD surface diffracted fields is the ...
Song Fu +4 more
doaj +1 more source
Aerodynamic Characteristics Optimization Design of the HALE Joined‐Wing Configuration UAV
This study investigates the factors influencing the aerodynamic performance enhancement of the rear wing of the joined‐wing configuration UAVs by analyzing the flow field structure and flow mechanisms before and after airfoil optimization. Correspondingly, an optimization design concept tailored to joined‐wing aircraft is proposed. Focusing on the rear
Junlei Sun +4 more
wiley +1 more source
For lower accuracy of tooth surface of outputted model after simulation process for spiral bevel gear,some methods cubic NURBS reconstruction and optimization of tooth surface are proposed by combining with the advantages and features of the Non- Uniform
Li Yunsong +2 more
doaj
Accuracy assessment of mine walls’ surface models derived from terrestrial laser scanning
The monitoring of highwall slopes at open-pit mines is an important task to ensure safe mining. For this reason, several techniques such as total station, radar, terrestrial Light Detection and Ranging (LIDAR) can be employed for surface measurement. The
Nguyen Quoc Long +6 more
doaj +1 more source
Higher‐Order, Mixed‐Hybrid Finite Elements for Kirchhoff–Love Shells
ABSTRACT A novel mixed‐hybrid method for Kirchhoff–Love shells is proposed that enables the use of classical, possibly higher‐order Lagrange elements in numerical analyses. In contrast to purely displacement‐based formulations that require higher continuity of shape functions as in isogeometric analysis (IGA), the mixed formulation features ...
Jonas Neumeyer +2 more
wiley +1 more source

