Multilayered architectured ceramic panels with weak interfaces: energy absorption and multi-hit capabilities

Sarvestani, Hamidreza Yazdani; Mirkhalaf, Mohammad; Akbarzadeh, Abdolhamid; Bäckman, David; Genest, Marc; Ashrafi, Behnam

doi:10.1016/j.matdes.2019.107627

Cited by 43 publications

(29 citation statements)

References 36 publications

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“…As in the previous discussion, these types of diffusers are very good to absorb sound energy at 3.0 kHz and 6.0 kHz. [40,43,44,55], the middle to high frequencies ability on the sound absorption occurred due to the cavities and viscous damping effects. These findings are suitable for acoustical materials for the buildings interior.…”

Section: Oxide Analysis Of Seashellsmentioning

confidence: 99%

On the Role of Acoustical Improvement and Surface Morphology of Seashell Composite Panel for Interior Applications in Buildings

et al. 2019

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This manuscript focuses on the acoustical behaviors and surface morphology of seashell waste filler reinforced polyester (SFRP) coverings Anadara granosa Linn, Perna viridis Linn, and Placuna placenta Linn and applications in buildings. Their acoustical performances were observed using an impedance tube using a technique with two and four microphones based on ASTM E1050-98 and ASTM E2611-09. The improvements of acoustical performance were conducted by a coupled resonator inclusion with addition of a fibrous dacron layer and back cavity. The experimental results showed that the resonators and back cavity on the material structure were able to shift the absorption ability at low frequency. The promising wide broadband frequencies performance occurred when the 15 mm Placuna placenta FRP treated with front-tailed cavity without any additional fibrous layer and air gap started from 0.2 at 2.0 kHz. The combination of resonators and fibrous layer on the material structure was able to stabilize the sound transmission loss (STL) in 52–56 dB at a high frequency. On the observation of the simple surface morphology material, it was found that Placuna placenta Linn had the highest damping performances due to the smallest pores and the most carbon compound compared to the others. Therefore, this finding is very useful for building applications.

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Section: Oxide Analysis Of Seashellsmentioning

confidence: 99%

On the Role of Acoustical Improvement and Surface Morphology of Seashell Composite Panel for Interior Applications in Buildings

et al. 2019

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“…The concept that we demonstrated here could be applied to any soft materials including elastomers and hydrogels in order to achieve large inelastic deformation and high energy dissipation. Combining our composite with other successful implementations of nature's toughening mechanisms in the literature [8][9][10] is a promising way to make advanced laminate composites with high energy dissipations at multiple length scales.…”

Section: Discussionmentioning

confidence: 99%

Toughening elastomers via microstructured thermoplastic fibers with sacrificial bonds and hidden lengths

Zou¹,

Therriault²,

Gosselin³

2021

Extreme Mechanics Letters

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Soft materials capable of large inelastic deformation play an essential role in highperformance nacre-inspired architectured materials with a combination of stiffness, strength and toughness. The rigid "building blocks" made from glass or ceramic in these architectured materials lack inelastic deformation capabilities and thus rely on the soft interface material that bonds together these building blocks to achieve large deformation and high toughness. Here, we demonstrate the concept of achieving large inelastic deformation and high energy dissipation in soft materials by embedding microstructured thermoplastic fibers with sacrificial bonds and hidden lengths in a widely used elastomer. The microstructured fibers are fabricated by harnessing the fluid-mechanical instability of a molten polycarbonate (PC) thread on a commercial 3D printer. Polydimethylsiloxane (PDMS) resin is infiltrated around the fibers, creating a soft composite after curing. The failure mechanism and damage tolerance of the composite are analyzed through fracture tests. The high energy dissipation is found to be related to the multiple fracture events of both the sacrificial bonds and elastomer matrix. Combining the microstructured fibers and straight fibers in the elastomer composite results in a ~ 17 times increase in stiffness and a ~ 7 times increase in total energy to failure compared to the neat elastomer. Our findings in applying the

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“…The authors show that smaller hexagonal tiles (L 1 = 2.5 and 5 mm) with lower stiffness increased the multi-hit capability, absorbing more energy in the second and third hit than any of the other arrangements. However, decreasing tile size does lead to larger delamination and greater deflection [29].…”

Section: Dic Used In Impact Studies To Measure Target Deformationmentioning

confidence: 99%

“…Sarvestani et al [29] examined a number of novel multi-layered architectured ceramics, laminated together to enhance damage tolerance. Each ceramic tile was made from 263 borosilicate ceramic with 96-99.8% theoretical density, 3875 kg/m 3 density and a thickness of 0.635 mm.…”

Section: Dic Used In Impact Studies To Measure Target Deformationmentioning

confidence: 99%

Visual Methods to Assess Strain Fields in Armour Materials Subjected to Dynamic Deformation—A Review

Ellis

Hazell

2020

Applied Sciences

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When impacted by a projectile, ballistic protection undergoes very large strain rates over very short periods of time. During these impact events, materials will undergo a very short region of elastic deformation, before undergoing significant plastic deformation. Due to the high levels of plastic deformation the samples undergo, strain gauges and other embedded sensors are often ineffective or become damaged before useful data can be obtained. Three-dimensional digital image correlation (3D DIC) is a non-invasive measurement method that uses two high-speed cameras, offset from each other by 15–45° to observe a speckle pattern on the sample material. As the material, and by extension the speckle pattern, deforms, the images taken throughout the deformation can be compared in sequence, to determine the motion and deformation of the sample. Recent advances in camera technology have allowed for frame rates in the hundreds of thousands of frames per-second, allowing for the measurement of very high-strain rate impact events. This paper will describe the premise of 3D DIC and provide a review of the current applications and research into high-speed impact testing using 3D DIC.

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Multilayered architectured ceramic panels with weak interfaces: energy absorption and multi-hit capabilities

Cited by 43 publications

References 36 publications

On the Role of Acoustical Improvement and Surface Morphology of Seashell Composite Panel for Interior Applications in Buildings

On the Role of Acoustical Improvement and Surface Morphology of Seashell Composite Panel for Interior Applications in Buildings

Toughening elastomers via microstructured thermoplastic fibers with sacrificial bonds and hidden lengths

Visual Methods to Assess Strain Fields in Armour Materials Subjected to Dynamic Deformation—A Review

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