Compressive Stress-Strain Behavior of Composite Ordinary and Reactive Powder Concrete

2013 ◽  
Vol 4 (3) ◽  
Author(s):  
Bassam A. Tayeh
Keyword(s):  
Compressive Stress ◽  
Reactive Powder Concrete ◽  
Stress Strain ◽  
Strain Behavior ◽  
Reactive Powder

scholarly journals Properties of Reactive Powder Concrete and Its Application in Highway Bridge

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Junwei Song ◽  
Shuhua Liu
Keyword(s):  
Compressive Stress ◽  
Strain Curve ◽  
Elastic Behaviour ◽  
Reactive Powder Concrete ◽  
Stress Strain ◽  
River Sand ◽  
Element Analysis ◽  
Conventional Concrete ◽  
Reactive Powder ◽  
Uniaxial Compressive Stress

A high-performance reactive powder concrete (RPC) was prepared with river sand, and the maximum particle size is 1.25 mm, under the 80°C steam curing condition. It is tested completely in terms of strength, uniaxial compressive stress-strain relation, flexural load-deflection relation, and frost resisting durability, and the results indicate that the concrete is suitable to RPC200. The uniaxial compressive stress-strain curve shows a linear-elastic behaviour up to explosive failure, which is different from that of conventional concrete. High postpeak load carrying capacity shows high toughness and reinforcing effect of the steel fibers. The RPC has not only much higher limit strain than conventional concrete, but also excellent frost resisting durability at the fifth day of age exceeding F300. Furthermore, the RPC satisfactorily meets the requirement of practical application for Xialouzi Bridge built with the RPC totally according to the calculation with finite element analysis software MIDAS/Civil. And the static loading testing result suggests that design of the bridge meets the utilization requirements.

Compressive stress–strain behavior of steel fiber reinforced-recycled aggregate concrete

2014 ◽  
Vol 46 ◽  
pp. 65-72 ◽  
Author(s):  
Jodilson Amorim Carneiro ◽  
Paulo Roberto Lopes Lima ◽  
Mônica Batista Leite ◽  
Romildo Dias Toledo Filho
Keyword(s):  
Compressive Stress ◽  
Steel Fiber ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Fiber Reinforced ◽  
Stress Strain ◽  
Aggregate Concrete ◽  
Strain Behavior

scholarly journals Effect of Densification on Compressive Stress-Strain Behavior in Wood

2007 ◽  
Vol 56 (4) ◽  
pp. 321-325
Author(s):  
Tadashi OHTANI ◽  
Takayuki FUJIWARA ◽  
Kinuyo MATSUDA
Keyword(s):  
Compressive Stress ◽  
Stress Strain ◽  
Strain Behavior

High Strain-Rate Compressive Behavior and Constitutive Modeling of Selected Polymers Using Modified Ramberg-Osgood Equation

2014 ◽  
Vol 566 ◽  
pp. 80-85
Author(s):  
Kenji Nakai ◽  
Takashi Yokoyama
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Compressive Stress ◽  
Constitutive Modeling ◽  
High Strain ◽  
Strain Rates ◽  
Stress Strain ◽  
Strain Behavior ◽  
Least Squares Fit ◽  
Wide Range

The present paper is concerned with constitutive modeling of the compressive stress-strain behavior of selected polymers at strain rates from 10-3 to 103/s using a modified Ramberg-Osgood equation. High strain-rate compressive stress-strain curves up to strains of nearly 0.08 for four different commercially available extruded polymers were determined on the standard split Hopkinson pressure bar (SHPB). The low and intermediate strain-rate compressive stress-strain relations were measured in an Instron testing machine. Six parameters in the modified Ramberg-Osgood equation were determined by fitting to the experimental stress-strain data using a least-squares fit. It was shown that the monotonic compressive stress-strain behavior over a wide range of strain rates can successfully be described by the modified Ramberg-Osgood constitutive model. The limitations of the model were discussed.

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