Results 231 to 240 of about 23,824 (281)

A Fatigue Test Machine for Biaxial Compression of Concrete

Journal of Testing and Evaluation, 1988
Abstract A 980 kN (220 000 lb) capacity test machine has been developed to study the fatigue behavior of concrete under biaxial compression. It features a load bifurcation mechanism and brush-type loading platens. Concrete plates 15.2 by 15.2 by 3.8 cm (6 by 6 by 1.5 in.) can be tested with the two principal stress ratios ranging from 0 (
ECM Su, TTC Hsu
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Comparing compression and biaxial tests for bread dough

Journal of Non-Newtonian Fluid Mechanics, 2013
Abstract Due to the potentially anisotropic microstructure of bread dough, the pre-test deformation produced during the making of the specimens significantly affects the rheological properties of dough, and the resistance to deformation is increased. Some new experimental results for JANZ dough are reported in this paper. Lubricated compression tests
Fuzhong Qi, Shao-Cong Dai, Surjani Uthayakumaran, Roger I. Tanner   +3 more
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A Biaxial Tension-Compression Test Method for Composite Laminates

Journal of Composites Technology and Research, 1994
Development of a test system and associated experimental procedure for evaluating the strength of composite laminates under an in-plane biaxial tension-compression (BTC) stress state is presented. A description of the BTC test system and specimen is given.
WS Johnson, JE Masters, JZ Wang, DF Socie   +3 more
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Development of a biaxial compression test apparatus for granular materials

AIP Conference Proceedings, 2013
A set of two-dimensional biaxial compression testing system was developed to investigate the stress-strain behavior and its change with the micro-structure of granular materials. The specimen was assembled using small metal bars with elliptical section. Load was then subjected in both horizontal and vertical directions.
Lian-Wei Zhang, Jian-Min Zhang
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Biaxial Compression Testing of Refractory Concretes

1983
In the past, the design of large refractory lined process vessels, such as used in coal gasification, has been based on operating experience. During the 1970’s, efforts were funded by the Department of Energy (DOE) to develop mathematical models that would predict the thermo-mechanical behavior of refractory concrete lined coal gasification process ...
Albert H. Bremser, Oral Buyukozturk
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The Test of Dynamic Characteristics of Concrete under Biaxial Compression State

Advanced Materials Research, 2013
Concrete structure in reality mostly in complicated stress state, dynamic characteristics and static characteristics under earthquakes and other dynamic loads are very different. For a further understanding of the dynamic characteristics of the concrete, true triaxial testing machine system was used to the C30 concrete at different strain rates and ...
Jin Sheng Lei, Fei Liu, Gang Peng, Min Lei   +3 more
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Elastic stability in biaxial testing with cruciform specimens subjected to compressive loading

Composite Structures, 2020
Abstract This work presents the main aspects that should be taken into account to design biaxial experiments with cruciform specimens in the presence of compressive loading, applied on the arms of the sample by means of compression plates. The global buckling of the cruciform specimen and the local instability of the rectangular-shaped central region
M.C. Serna Moreno, S. Horta Muñoz
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Investigation of the failure mode of shale rocks in biaxial and triaxial compression tests

International Journal of Rock Mechanics and Mining Sciences, 2015
Abstract High horizontal in-situ stress and weak sedimentary laminated roof rock can severely affect underground coal mine roof stability. These sedimentary rocks possess planes of weakness along the horizontal direction in a mine roof and delaminate easily when acted upon by high lateral stresses.
Shrey Arora, Brijes Mishra
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THE CONTROL SYSTEM OF THE FATIGUE TEST STAND UNDER BIAXIAL TENSION-COMPRESSION

Experimental Techniques, 2010
In this paper, a system for control of the hydraulic test stand for biaxial tension—compression of cruciform specimens was presented. The system is equipped with six control loops and two compensators of amplitude, which improve the machine operation. The elaborated mechatronic system based on the biaxial strength machine realizes the planned fatigue ...
L. Kasprzyczak, E. Macha
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Investigation on recycled aggregate concretes exposed to high temperature by biaxial compressive tests

Construction and Building Materials, 2020
Abstract Recycled aggregate concretes (RACs) made of building wastes can achieve good environmental and economic benefits. Since fire is one of the most common disaster in modern high-rise buildings, the strength, deformation and bearing capacity of recycled concrete structures under high temperatures should be carefully studied in design.
Z.H. Deng, H.Q. Huang, Bailong Ye, Huaping Wang, Ping Xiang   +4 more
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