Photoelastic stress response of complex 3D-printed particle shapes

Amini, Negin; Tuohey, Josh; Long, John M.; Zhang, Jun; Morton, David A.; Daniels, Karen E.; Fazelpour, Farnaz; Hapgood, Karen

doi:10.1016/j.powtec.2022.117852

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…In the latter, stable spray‐dried nanoparticle clusters made up of multiple nanofillers are employed in high‐performance dental resin composites. [ 107 ] Mechanical stability can in principle be achieved in various ways, for example, by designed slurry properties (e.g., size and shape distribution of primary particles, surface charge distribution, tailoring particle–particle interaction [ 108 ] and particle microstructure [ 109 ] ), by the use of additives (e.g., clays in porcelain manufacturing [ 110 ] to improve bonding, plasticity, and deformability), or by chemical reactions during drying that improve bonding of suspended primary particles. In general, while smaller primary particles yield a higher deformation resistance in the structures formed by spray‐drying, fracture stress and strain of the resulting supraparticles depend directly on their diameter.…”

Section: Spray‐drying As a Highly Versatile Tool For Materials Chemistsmentioning

confidence: 99%

Multifunctional, Hybrid Materials Design via Spray‐Drying: Much more than Just Drying

Wintzheimer,

Luthardt,

Cao

et al. 2023

Advanced Materials

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Spray‐drying is a popular and well‐known “drying tool” for engineers. This perspective highlights that, beyond this application, spray‐drying is a very interesting and powerful tool for materials chemists to enable the design of multifunctional and hybrid materials. Upon spray‐drying, the confined space of a liquid droplet is narrowed down, and its ingredients are forced together upon “falling dry.” As detailed in this article, this enables the following material formation strategies either individually or even in combination: nanoparticles and/or molecules can be assembled; precipitation reactions as well as chemical syntheses can be performed; and templated materials can be designed. Beyond this, fragile moieties can be processed, or “precursor materials” be prepared. Post‐treatment of spray‐dried objects eventually enables the next level in the design of complex materials. Using spray‐drying to design (particulate) materials comes with many advantages—but also with many challenges—all of which are outlined here. It is believed that multifunctional, hybrid materials, made via spray‐drying, enable very unique property combinations that are particularly highly promising in myriad applications—of which catalysis, diagnostics, purification, storage, and information are highlighted.

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Section: Spray‐drying As a Highly Versatile Tool For Materials Chemistsmentioning

confidence: 99%

Multifunctional, Hybrid Materials Design via Spray‐Drying: Much more than Just Drying

Wintzheimer,

Luthardt,

Cao

et al. 2023

Advanced Materials

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“…Based on photoelastic theory, the combination of bright and dark field setups is distinguished by whether the orientation of the plane polarizer and the quarter wave plate are perpendicular or parallel to one another [16]. In the present study, a dark field arrangement was chosen as the light traversed the plane polarizer, with the quarter wave plate installed in the corresponding direction.…”

Section: 𝜎 − 𝜎 = 𝑁𝜆 ℎ𝐶mentioning

confidence: 99%

“…The subsequent research actively utilizes photoelasticity to understand the formation and impact of the force-chain network in granular materials [10][11][12], as well as explore the effects of the shearing rate [13] and packing density on slip behavior [14], and jamming in granular materials [15]. Recently, studies have been carried out on diverse subjects, such as the fabrication of particle models of various shapes using 3D printing [16], the impact of stress relaxation from temporary halts in pile penetration processes [17], and the visualization of the soil arching effect [18].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Variability in Reflective Photoelasticity: Focus on Adhesives, Light Sources, and Camera Setup

Kim,

Nam,

Jung

2023

Applied Sciences

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This study investigates the impact of various experimental parameters on the reflective photoelastic coating technique used to measure the stress and strain in model soil particles. The focus is directed towards three pivotal parameters: the choice of adhesive for the photoelastic coating, the inherent properties of the light source, and the configuration of the camera for color image analysis. Through a series of uniaxial compression tests on consistently crafted model soil particles, a notable relationship emerges between the adhesive’s shear strength, its viscosity, and the uniformity of the photoelastic response. While the light source’s characteristics and camera adjustments hold significance, their influence on the consistency of the response is comparatively subtle. Consequently, the adhesive’s role is underscored as instrumental in influencing the photoelastic response, offering valuable insights for subsequent research endeavors utilizing the reflective photoelastic technique.

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New high sensitivity approach for a quantitative visualization of the continuous whole-field stress evolution in digital photoelasticity

Fandiño-Toro,

Rico-García,

Briñez-de León

2024

Optics and Lasers in Engineering

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Photoelastic stress response of complex 3D-printed particle shapes

Cited by 7 publications

References 24 publications

Multifunctional, Hybrid Materials Design via Spray‐Drying: Much more than Just Drying

Multifunctional, Hybrid Materials Design via Spray‐Drying: Much more than Just Drying

Evaluating Variability in Reflective Photoelasticity: Focus on Adhesives, Light Sources, and Camera Setup

New high sensitivity approach for a quantitative visualization of the continuous whole-field stress evolution in digital photoelasticity

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