scholarly journals Investigation on shear strain of reinforced concrete membrane panels subjected to pure shear

2019 ◽  
Vol 11 (8) ◽  
pp. 168781401986948
Author(s):  
Je-Pyong Jeong ◽  
Dae-Hung Kang
Keyword(s):  
Reinforced Concrete ◽  
Shear Strain ◽  
Pure Shear ◽  
Failure Criteria ◽  
Principal Compressive Stress ◽  
Strain Relationship ◽  
Trial And Error Method ◽  
Shear Strain Energy ◽  
Relationship Of ◽  
The Relationship

Hsu recently conducted a shear test on nine reinforced concrete panel elements subjected to applying pure shear using a shear testing device. Modern truss models (i.e. modified compression field theory and a rotating angle softened truss model) are used to perform a complex nonlinear analysis through a trial and error method based on a double loop. This analysis is conducted by employing equilibrium conditions, compatibility conditions, and a ductile stress–strain relationship of a reinforced concrete membrane panel in a biaxial state. In this study, an effective algorithm that uses a revised Mohr compatibility method based on the failure criteria of struts and ties is proposed. This algorithm is used to improve the convergence rate in the analysis of shear history, which was performed in the experiment of Hsu. The result of the analysis indicates that the shear strain energy in a state of extended shear strain is influenced by the relationship between principal compressive stress and strain (crushing failure).

The Compressive Behavior of Horizontally Casted Concrete Filled Steel Tubular Members with Consideration of the Process of Concrete Casting

2011 ◽  
Vol 243-249 ◽  
pp. 45-50
Author(s):  
Wen Bo Sun ◽  
Yi Qun Luo ◽  
Wei Huang
Keyword(s):  
Bearing Capacity ◽  
Slenderness Ratio ◽  
Nonlinear Finite Element ◽  
Compressive Behavior ◽  
Element Analysis ◽  
Calculation Results ◽  
Strain Relationship ◽  
Concrete Casting ◽  
Relationship Of ◽  
The Relationship

Concrete casting effect and the hooping effect of concrete filled tubular members is considered in the study of this paper. Firstly, standard stress-strain relationship of concrete and steel is chosen to simulate others’ test, and meanwhile the calculation results by nonlinear finite element analysis are compared with the results of the test. Then the bearing capacity of horizontally casted concrete filled steel tubular members under axial compression is contrasted among different construction processes. Finally, the effect of slenderness ratio of concrete filled tubular members is studied so as to reveal the relationship between the bearing capacity and slenderness ratio.

scholarly journals Establishing Relationship of Porosity and Strength of Fibre Reinforced Concrete

2019 ◽  
Vol 9 (2S2) ◽  
pp. 82-85
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
Fibre Reinforced Concrete ◽  
Steel Fibres ◽  
The One ◽  
Strength And Durability ◽  
Relationship Of ◽  
The Relationship

There are numerous factors that affect the performance of concrete in terms of strength and durability aspects. Amongst, the pores in the concrete are the one which is playing a foremost role in deciding strength and durability characteristics. The presences of pores in the concrete are due to inferior quality of concrete ingredients, lack of w/c ratio, improper compaction, poor workmanship etc. Many past studies reveal that the presence of fillers materials may reduce the pores on the concrete. But at the same time, the strength and durability should improve a lot. Under these circumstances, the presence of steel fibres in the concrete will give a better solution to arrest the pores and furnish desired results in all aspects. This study is made an attempt to establish the relationship between porosity and compressive strength on the various proportions of steel fibres of M20 and M40 grade concrete

Multifunctional Engineering Design of Elastomeric Components

2006 ◽  
Vol 79 (5) ◽  
pp. 881-891 ◽  
Author(s):  
Kenneth Reifsnider ◽  
Xinyu Huang ◽  
Yue Zou ◽  
Roham Solasi ◽  
Matthew Feshler
Keyword(s):  
Engineering Design ◽  
Constitutive Equations ◽  
Failure Criteria ◽  
Large Strains ◽  
Material Response ◽  
Active Stress ◽  
Stress States ◽  
Relationship Of ◽  
The Relationship ◽  
Mechanical Constraint

Abstract Earlier work has shown that the strength and growth of defects in elastomers is greatly affected by microstructure and mechanical constraint. Current work is focused on ionomeric materials which behave as elastomers under certain conditions of temperature, hydration, and mechanical constraint. These materials are typically characterized by large strains to failure. The present paper will deal with two aspects of their response that is important to design. The first is the creation of nonlinear constitutive equations that are appropriate for the description of their response in commercial codes. And the second is the development of strength concepts that are appropriate for the description of failure of such materials. Finally, the relationship of the material response and failure criteria to complexity of active stress states will be discussed.

Study on Stress-Strain Behaviour of Mud Stone from Triaxial Test

2011 ◽  
Vol 197-198 ◽  
pp. 1425-1429
Author(s):  
Bao Tian Xu ◽  
Chang Hong Yan
Keyword(s):  
Elastic Strain ◽  
Polynomial Function ◽  
Confining Pressure ◽  
Stress Strain ◽  
Failure Pressure ◽  
Strain Behaviour ◽  
Strain Fracture ◽  
Strain Relationship ◽  
Relationship Of ◽  
The Relationship

This paper systematically analysis the stress-strain behaviour of mud stone under different confining pressure. The relationship between the mechanical behaviour of mud stone and confining pressure is established, and the curves of stress-strain relationship of mud stone are fitted. The results indicate that the failure pressure and the elastic modulus increase with the increasing of confining pressure conforming to the linear function. The stress- strain of mud stone is divided into four different stages which are fracture closing, elastic strain, fracture expanding and plastic strain stage. The stress-strain behaviour in different stage has different function law, the stage of fracture closing can be fitted by polynomial function, the stage of fracture expanding can be fitted by hyperbola function, the fitting result is ideal.

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