The role of porosity and solid matrix compressibility on the mechanical behavior of poroelastic tissues

Polyester textiles usually have excellent mechanical properties. However, their mechanical behaviors under extreme conditions such as in the environment with high ozone concentration usually decay after a certain time period. Aiming at increasing the mechanical behavior of commercial polyester textiles under extreme conditions, a PET thin film coated with pure aluminum (Al) on its surface has been introduced as the top layer of the fabricated material with polyester textile as the middle layer. Main purpose of the study is to evaluate the role of aluminum thin film on the surface in improving the mechanical behavior of the polyester textiles after they have been exposed in the environment with extremely high concentration of ozone gas.

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Role of Glycosaminoglycans in the Mechanical Behavior of the Posterior Sclera

Volume 1B: Extremity; Fluid Mechanics; Gait; Growth, Remodeling, and Repair; Heart Valves; Injury Biomechanics; Mechanotransduction and Sub-Cellular Biophysics; MultiScale Biotransport; Muscle, Tendon and Ligament; Musculoskeletal Devices; Multiscale Mechanics; Thermal Medicine; Ocular Biomechanics; Pediatric Hemodynamics; Pericellular Phenomena; Tissue Mechanics; Biotransport Design and Devices; Spine; Stent Device Hemodynamics; Vascular Solid Mechanics; Student Paper and Design Competitions ◽

10.1115/sbc2013-14144 ◽

2013 ◽

Author(s):

Barbara J. Murienne ◽

C. Thao D. Nguyen

Keyword(s):

Mechanical Properties ◽

Mechanical Behavior ◽

Viscoelastic Behavior ◽

Ocular Diseases

Changes in sclera mechanical properties have been shown to play an important role in ocular diseases such as glaucoma 1,2,3 and myopia 4,5. In both diseases, those changes in mechanical behavior were observed along with changes in proteoglycan (PG) and associated glycosaminoglycan (GAG) levels, which have been shown to significantly influence the viscoelastic behavior of other tissues 6.

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Protective role of Arapaima gigas fish scales: Structure and mechanical behavior

Acta Biomaterialia ◽

10.1016/j.actbio.2014.04.009 ◽

2014 ◽

Vol 10 (8) ◽

pp. 3599-3614 ◽

Cited By ~ 92

Author(s):

Wen Yang ◽

Vincent R. Sherman ◽

Bernd Gludovatz ◽

Mason Mackey ◽

Elizabeth A. Zimmermann ◽

...

Keyword(s):

Mechanical Behavior ◽

Protective Role ◽

Fish Scales ◽

Arapaima Gigas

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Visco-Elastic Analysis on the Effect of Flexible Layer on Mechanical Behavior of Tunnels

International Journal of Applied Mechanics ◽

10.1142/s1758825119500273 ◽

2019 ◽

Vol 11 (03) ◽

pp. 1950027 ◽

Cited By ~ 32

Author(s):

Kui Wu ◽

Zhushan Shao

Keyword(s):

Mechanical Behavior ◽

Rock Deformation ◽

Elastic Analysis ◽

Interaction Forces ◽

Finite Element Software ◽

Good Ability ◽

Good Improvement ◽

Rock Rheology ◽

Primary Support

Installing flexible layer is one kind of supporting techniques to deal with the large deformation in tunnels excavated in viscoelastic rocks. The role of flexible layer is to absorb rock deformation due to rock rheology. For further understanding the effect of flexible layer on mechanical behavior of tunnels, a three-layered model is established to study the mechanical behavior of tunnel where flexible layer is installed between surrounding rock and primary support. Visco-elastic analytical solutions for displacements and interaction forces in the rock/flexible layer interface and in the flexible layer/primary support interface are provided. Numerical calculation by use of finite element software Abaqus is carried out to verify the effectiveness and reliability of theoretical analysis. It could be found that flexible layer has a good ability to absorb rock deformation. Compared with rigid support structure, pressure and displacement of primary support in tunnels employing flexible layer could achieve a good improvement. This improvement is dramatically affected by the thickness and deformability of reserved flexible layer.

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