Effect of initial imperfections of struts on the mechanical behavior of tensegrity structures

2019 ◽  
Vol 207 ◽  
pp. 871-876 ◽  
Author(s):  
Jianguo Cai ◽  
Ruiguo Yang ◽  
Xinyu Wang ◽  
Jian Feng
Keyword(s):  
Mechanical Behavior ◽  
Tensegrity Structures ◽  
Initial Imperfections

Mechanical behavior of tensegrity structures with High-mode imperfections

2018 ◽  
Vol 94 ◽  
pp. 58-63 ◽  
Author(s):  
Jianguo Cai ◽  
Xinyu Wang ◽  
Ruiguo Yang ◽  
Jian Feng
Keyword(s):  
Mechanical Behavior ◽  
High Mode ◽  
Tensegrity Structures

Out-of-Plane Buckling of Fiber-Reinforced Thermoplastic Sheets Under Homogeneous Biaxial Conditions

1995 ◽  
Vol 62 (4) ◽  
pp. 834-840 ◽  
Author(s):  
G. R. Christie ◽  
I. F. Collins ◽  
D. Bhattacharyya
Keyword(s):  
Stability Analysis ◽  
Viscous Fluid ◽  
Mechanical Behavior ◽  
Linear Stability ◽  
Linear Stability Analysis ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Initial Imperfections ◽  
Reinforced Composite ◽  
Out Of Plane

The mechanical behavior of fiber-reinforced composite thermoplastic sheets during forming processes is modelled as a viscous fluid with inextensibility and incompressibility constraints. Techniques of linear stability analysis are used to study the growth or decay of initial imperfections in plane sheets reinforced by two families of fibers subjected to biaxial strains. This theory delimits situations when buckles can be expected to form during forming operations.

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

The influence of the addition of ground olive stone on the thermo-mechanical behavior of compressed earth blocks

2020 ◽  
Vol 108 (2) ◽  
pp. 203
Author(s):  
Samia Djadouf ◽  
Nasser Chelouah ◽  
Abdelkader Tahakourt
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Mechanical Behavior ◽  
Agricultural Waste ◽  
Hydraulic Press ◽  
Dry Density ◽  
Olive Stone ◽  
Compressed Earth Blocks ◽  
Clay Matrix ◽  
Earth Blocks

Sustainable development and environmental challenges incite to valorize local materials such as agricultural waste. In this context, a new ecological compressed earth blocks (CEBS) with addition of ground olive stone (GOS) was proposed. The GOS is added as partial clay replacement in different proportions. The main objective of this paper is to study the effect of GOS levels on the thermal properties and mechanical behavior of CEB. We proceeded to determining the optimal water content and equivalent wet density by compaction using a hydraulic press, at a pressure of 10 MPa. The maximum compressive strength is reached at 15% of the GOS. This percentage increases the mechanical properties by 19.66%, and decreases the thermal conductivity by 37.63%. These results are due to the optimal water responsible for the consolidation and compactness of the clay matrix. The substitution up to 30% of GOS shows a decrease of compressive strength and thermal conductivity by about 38.38% and 50.64% respectively. The decrease in dry density and thermal conductivity is related to the content of GOS, which is composed of organic and porous fibers. The GOS seems promising for improving the thermo-mechanical characteristics of CEB and which can also be used as reinforcement in CEBS.

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