Results 21 to 30 of about 145 (124)

Mechanical Properties and Testing Strategies for Two‐Photon Lithography: A Review of Current Practices and Emerging Challenges

open access: yesLaser &Photonics Reviews, EarlyView.
Two‐photon lithography enables the fabrication of complex 3D microstructures with tunable mechanical properties spanning from soft hydrogels to rigid hybrid networks. This review summarizes how material composition, printing parameters, and post‐processing govern stiffness and viscoelasticity, highlighting advanced characterization methods and emerging
Dalila Fontana   +6 more
wiley   +1 more source

EFFECTS OF PRE-BUCKLING DEFLECTIONS ON LOCAL, DISTORTIONAL AND LATERAL-TORSIONAL BUCKLING OF I-BEAMS

open access: yesDoboku Gakkai Ronbunshu, 1985
The displacement and strain distributions for a plate segment comprising open cross section are derived considering the pre-buckling deflection of beam axis. Applying the higher order theory obtained to I-beams bent about their major axes by equal end moments, the effects of pre-buckling deflections on local, distortional and lateral-torsional buckling
Seizou USUKI, Kaoru HASEBE
openaire   +2 more sources

Properties of Liquid Crystalline Elastomer Foams

open access: yesMacromolecular Rapid Communications, EarlyView.
Controlled foaming of liquid crystalline elastomers (LCE) with expandable microspheres creates particle‐centred mesogenic interphases that enhance viscoelastic dissipation at low bubble fractions. Under impact, optimal damping shifts to moderate porosity, balancing interphase loss, bubble compression, compliance, and integrity.
Oliver Dai   +2 more
wiley   +1 more source

Analysis of the Crashworthiness of Novel Flax‐Fiber Hybrid Reinforced Three‐Dimensional Woven Composites

open access: yesPolymer Composites, EarlyView.
Through‐thickness binder yarns in tailored three‐dimensional woven flax‐fiber composites stabilize damage propagation and promote progressive crushing, enhancing crashworthiness and energy absorption. ABSTRACT This study investigates the impact crashworthiness performance of flax‐fiber reinforced three‐dimensional (3D) composites through a ...
H. F. M. de Queiroz   +3 more
wiley   +1 more source

Material Extrusion‐Enabled Soft Multimodal Pressure Sensors With Fabrication‐Embedded Stretch‐Induced Strain Insensitivity

open access: yesSmall, EarlyView.
Material extrusion‐based additive manufacturing integrates mechanically anisotropic electrospun piezoelectric composite microfibers with stretchable silver electrodes into a three‐dimensional serpentine architecture to realize stretch‐induced strain‐insensitive pressure sensors, maintaining a stable sensing performance under tensile strains up to 30 ...
Jinsheng Fan   +7 more
wiley   +1 more source

Spatially Resolved Strain Mapping In Flexible Oxide Membranes

open access: yesSmall, EarlyView.
High‐resolution synchrotron x‐ray diffraction reveals how strain transfers and distributes within crystalline oriented oxide membranes (10–100 nm thick) on flexible substrates that are subjected to stretching and bending. The study uncovers local strain heterogeneities that deviate from macroscopic averages, providing a crucial framework when ...
Pol Salles   +10 more
wiley   +1 more source

Anatomical Study of Lateral Compression II Screw Path and Entry Parameters Based on Three‐Dimensional CT Image Reconstruction Techniques

open access: yesOrthopaedic Surgery, Volume 17, Issue 5, Page 1454-1463, May 2025.
This graphical abstract illustrates a study where 43 adult patients (21 males, 22 females) underwent CT scans to reconstruct 3D pelvic models using Mimics and 3‐Matic software. The analysis measured the Lateral Compression II (LC‐II) screw path, revealing sex‐based anatomical differences that could improve the precision and safety of percutaneous LC‐II
Xingye Du, Yong Liu, Xuefeng Jiang
wiley   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 34, September 10, 2026.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli   +3 more
wiley   +1 more source

Distortional lateral torsional buckling for simply supported beams with web cleats [PDF]

open access: yesCanadian Journal of Civil Engineering, 2015
Critical moment expressions for steel beams based on elastic lateral torsional buckling as given in classical solutions and present standard provisions are based on assumed fully restrained support conditions and simplifying kinematic assumptions that neglect distortional effects.
Hassan, Rusul, Mohareb, Magdi
openaire   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, Volume 2, Issue 4, August 2026.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

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