An Experimental Study on Allowable Compressive Stress at Prestress Transfer in Pre-Tensioned Concrete Members

In the micro electroforming process, the existence of electroforming layer defects caused by macro internal stress seriously limits the application and development of the micro electroforming technology. Currently, some studies have shown that ultrasonic can reduce the internal stress. But the formation process of the internal stress and the mechanism of ultrasonic stress relief in micro electroforming layer are still unclear now. In this paper, the relationship between dislocation density and internal stress under ultrasonic was studied. The results show that the ultrasonic can make the dislocation density increase and the compressive stress decrease. When the ultrasonic power is 200W, the dislocation density and the compressive stress culminate 3.8×10-15m-2 and-144.4MPa, respectively. The ultrasonic can excite the movement of dislocation proliferation, pile-up and opening, which leads to a micro plastic deformation in the crystal, and thereby releases the internal stress.

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An experimental study of crack development in flexural reinforced concrete members

IABSE Symposium, Vancouver 2017: Engineering the Future ◽

10.2749/vancouver.2017.3099 ◽

2017 ◽

Author(s):

Annette Beedholm Rasmussen ◽

Bjarke Würtz Sørensen ◽

Mikkel Skov ◽

Peter Kolt Rasmussen ◽

Lars Germa Hagsten

Keyword(s):

Experimental Study ◽

Reinforced Concrete ◽

Crack Development ◽

Concrete Members

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Experimental study for determining applicable models of compressive stress–strain behavior of hybrid synthetic fiber-reinforced high-strength concrete

European Journal of Environmental and Civil engineering ◽

10.1080/19648189.2017.1364297 ◽

2017 ◽

Vol 24 (1) ◽

pp. 34-59 ◽

Cited By ~ 5

Author(s):

Saber Fallah-Valukolaee ◽

Mahdi Nematzadeh

Keyword(s):

Experimental Study ◽

Compressive Stress ◽

High Strength Concrete ◽

High Strength ◽

Synthetic Fiber ◽

Fiber Reinforced ◽

Stress Strain ◽

Strength Concrete ◽

Strain Behavior

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2189 Experimental Study on the Shear Strength of Reinforced Concrete Members subjected to Axial Load : Part III. Influences of Axial Load and Shear Span Ratio(Structures)

Transactions of the Architectural Institute of Japan Summaries of Technical Papers ◽

10.3130/aijsaxxe.42.0_333 ◽

1967 ◽

Vol 42 (0) ◽

pp. 333

Author(s):

Shigezo Furui

Keyword(s):

Experimental Study ◽

Shear Strength ◽

Reinforced Concrete ◽

Axial Load ◽

Shear Span ◽

Concrete Members

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Out-of-plane behavior of confined masonry walls with aspect ratios greater than one

Canadian Journal of Civil Engineering ◽

10.1139/cjce-2019-0453 ◽

2021 ◽

Vol 48 (1) ◽

pp. 89-97

Author(s):

Jorge Varela-Rivera ◽

Joel Moreno-Herrera ◽

Luis Fernandez-Baqueiro ◽

Juan Cacep-Rodriguez ◽

Cesar Freyre-Pinto

Keyword(s):

Experimental Study ◽

Aspect Ratio ◽

Compressive Stress ◽

Masonry Walls ◽

Confined Masonry ◽

Aspect Ratios ◽

Out Of Plane ◽

Axial Compressive Stress ◽

Compressive Strut ◽

Failure Line

An experimental study on the out-of-plane behavior of confined masonry walls is presented. Four confined walls with aspect ratios greater than one were tested in the laboratory. Walls were subjected to combined axial and out-of-plane uniform loads. The variables studied were the aspect ratio and the axial compressive stress of walls. It was observed that the out-of-plane strength of walls increased as the aspect ratio or the axial compressive stress increased. Failure of walls was associated with crushing of masonry. Analytical out-of-plane strength of walls was determined using the yielding line, failure line, modified yielding line, compressive strut and bidirectional strut methods. It was concluded that the experimental out-of-plane strength of walls was best predicted with the bidirectional strut method.

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