Role of material combination and new results of mechanical behavior for FG sandwich plates in thermal environment

2017 ◽  
Vol 21 ◽  
pp. 164-181 ◽  
Author(s):  
T.V. Do ◽  
T.Q. Bui ◽  
T.T. Yu ◽  
D.T. Pham ◽  
C.T. Nguyen
Keyword(s):  
Mechanical Behavior ◽  
Thermal Environment ◽  
Sandwich Plates ◽  
Material Combination

New Higher-Order Models for Sandwich Plates with a Flexible Core and their Accuracy Assessment

2019 ◽  
Vol 19 (03) ◽  
pp. 1950024 ◽  
Author(s):  
Ali Tian ◽  
Renchuan Ye ◽  
Peng Ren ◽  
Pengming Jiang ◽  
Zengtao Chen ◽  
...  
Keyword(s):  
Dynamic Models ◽  
Accuracy Assessment ◽  
Order Theory ◽  
Higher Order ◽  
Analytical Models ◽  
Core Material ◽  
Sandwich Plates ◽  
Higher Order Theory ◽  
Flexible Core

Two higher-order analytical models based on a new higher-order theory for sandwich plates with flexible cores are developed considering the effect of the core material density and skin-to-core-stiffness-ratio (SCSR). The main difference between the two models is the role of the flexible core in the dynamic response of sandwich plates with cores of different stiffnesses. Firstly, the governing equations of a simply supported sandwich plate with a flexible core are derived based on the two models, and the analytical solutions are determined by using Navier’s approach. Then, the free vibration, static, dynamic bending and stress field characteristics of the sandwich plates with different SCSRs are investigated. The results obtained by the proposed method are compared with other published results. In particular, an accuracy assessment of the present dynamic models is conducted for different SCSRs. Finally, conclusions on the applicability of the proposed method and other theories on sandwich plates with different SCSRs are drawn.

The role of strain-induced structural changes on the mechanical behavior of PA6/PE multilayer films under uniaxial drawing

Polymer ◽  
2012 ◽  
Vol 53 (23) ◽  
pp. 5336-5346 ◽  
Author(s):  
N. Sallem-Idrissi ◽  
V. Miri ◽  
A. Marin ◽  
R. Seguela ◽  
J.-M. Lefebvre ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Structural Changes ◽  
Multilayer Films

Coating Technique’s Application in the Improvement of Mechanical Behavior of Polyester Textile in Corrosive Environment

2011 ◽  
Vol 311-313 ◽  
pp. 1814-1817
Author(s):  
Guo Ning Liu ◽  
Hua Dong Zhao ◽  
He Zheng Wang ◽  
Jing Ru Dong ◽  
Ming Hao Zhao
Keyword(s):  
Thin Film ◽  
Mechanical Behavior ◽  
Pure Aluminum ◽  
Middle Layer ◽  
Extreme Conditions ◽  
High Concentration ◽  
Time Period ◽  
High Ozone Concentration ◽  
Polyester Textile

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.

Role of Glycosaminoglycans in the Mechanical Behavior of the Posterior Sclera

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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