Experimental Study on the Failure Criterion for Brittle Materials in Compression

2011 ◽  
Vol 320 ◽  
pp. 259-262
Author(s):  
Xu Ran ◽  
Zhe Ming Zhu ◽  
Hao Tang
Keyword(s):  
Thin Film ◽  
Experimental Study ◽  
Compressive Strength ◽  
Fracture Mechanics ◽  
Failure Criterion ◽  
Brittle Materials ◽  
Experimental Results ◽  
Experiment Study ◽  
Confining Stress ◽  
Theoretical Results

The mechanical behavior of multi-cracks under compression has become a very important project in the field of fracture mechanics and rock mechanics. In this paper, based on the previous theoretical results of the failure criterion for brittle materials under compression, experiment study is implemented. The specimens are square plates and are made of cement, sand and water, and the cracks are made by using a very thin film (0.1 mm). The relations of material compressive strength versus crack spacing and the lateral confining stress are obtained from experimental results. The experimental results agree well with the failure criterion for brittle materials under compression, which indicates that the criterion is effective and applicable.

Experimental Study on Full-Scale Segment Model of Huaian Cable-Stayed Bridge Pylon

2011 ◽  
Vol 243-249 ◽  
pp. 1866-1870 ◽  
Author(s):  
Hong Yuan Tang ◽  
Shao Ping Meng
Keyword(s):  
Experimental Study ◽  
Stress Distribution ◽  
Theoretical Analysis ◽  
Full Scale ◽  
Experimental Results ◽  
Horizontal Load ◽  
Experiment Study ◽  
Segment Model ◽  
Cable Stayed Bridge

Through experiment study on full scale segmental model of Huaian bridge pylon, the stress distribution in the segmental model under the U shaped tendons and the horizontal load was measured. At the same time, the critical cracking load and the coefficient cracking safety class of the anchorage zone were obtained. At last, the theoretical analysis was compared with the experimental results, the theory agreed with the experiment well.

Experimental Study on Mechanical Properties of Synthetic Macro-Fiber Reinforced Reactive Powder Concrete

2014 ◽  
Vol 496-500 ◽  
pp. 2402-2406
Author(s):  
Kui He ◽  
Hui Yang ◽  
Fang Fang Jia ◽  
Er Po Wang ◽  
Zhen Bao Lu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Compressive Strength ◽  
Fracture Mechanics ◽  
Flexural Strength ◽  
Fracture Energy ◽  
Ductile Fracture ◽  
Reactive Powder Concrete ◽  
Fiber Reinforced ◽  
Reactive Powder

Workability, strength and fracture mechanics of polypropylene macro-fiber reinforced Reactive powder concrete (RPC) were studied in this work. The results showed that the incorporation of macro-fiber could influence the workability of RPC, the slump of RPC decreased with the increasing of macro-fiber content; compressive strength decreased while splitting strength increased with the increasing of macro-fiber, meanwhile the flexural strength invariant. Macro-fiber could strongly enhance the flexural toughness of RPC and changed the failure mode from brittle to ductile; fracture energy tends to increase linearly with the increasing of macro-fiber.

Study on the Ductile-Mode Milling of Brittle Ceramics

2012 ◽  
Vol 490-495 ◽  
pp. 3654-3657
Author(s):  
Xiang Cheng ◽  
Bin Gao ◽  
Jun Ying Liu ◽  
Xian Hai Yang
Keyword(s):  
Experimental Study ◽  
Brittle Materials ◽  
Ceramic Materials ◽  
High Accuracy ◽  
Experimental Results ◽  
Machining Parameters ◽  
Machining Conditions ◽  
Ductile Mode ◽  
Hard And Brittle Materials ◽  
Experimental Background

Hard and brittle materials such as silicon and ceramic materials are difficult to machining due to their brittle properties. By the ductile-mode machining, delicate features with high accuracy can be created on these materials by mechanical micro/nano machining. This paper introduced the experimental study on the ductile-mode milling of ceramics. First, the experimental background and plans have been introduced. Then, on the sub-micron milling center, experimental results show that ductile-mode machining can be achieved. Both machining parameters and machining conditions are very important in order to realize the ductile-mode machining

Experimental Study on the Ultrafine Powder Admixture of Fly Ash and Silica Fume

2013 ◽  
Vol 826 ◽  
pp. 187-191
Author(s):  
Qiang Li ◽  
Jin Huo ◽  
Zhi Jun Ma ◽  
Yuan Li ◽  
Jun Ce Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Fly Ash ◽  
Flexural Strength ◽  
Silica Fume ◽  
Strength Test ◽  
Experimental Results ◽  
Ultrafine Powder ◽  
Powder Composite

The ultrafine powder composite admixture of fly ash and silica fume were researched in this article according to ultrafine powder fly ash and silica fume features.Through the different proportions of admixture strength test to determine the best ratio.The experimental results showed that appropriate admixture with 21.5%,12% of fly ash,8% of silica fume,1.5% of compound activator 28 days of flexural strength could be achieved 10.8Mpa,compressive strength could reach 54Mpa.

Experimental Study on the Mix Design and Fundamental Properties for Mixd Mortars Using Recycled Fine Aggregates

2011 ◽  
Vol 287-290 ◽  
pp. 943-948
Author(s):  
Wen Lan Zhao ◽  
Li Xin Liu ◽  
Tong Hao
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Natural Environment ◽  
Experimental Results ◽  
Mix Design ◽  
Clay Brick ◽  
Shrinkage Ratio ◽  
Fundamental Properties ◽  
Fine Aggregates ◽  
Mixed Mortar

This paper concerns the use of recycled fine concrete and clay brick aggregates to respectively globally replace natural fine aggregates (sand) in the production of mixed mortar. The fundamental properties such as the compressive strength and the shrinkage ratio of mixed mortar made of the recycled fine aggregates are tested and discussed in detail. The experimental results indicated that it is viable to produce mixed mortar using recycled fine concrete and clay brick aggregates, the compressive strength of mixed mortar made of recycled fine aggregates is lower than that of mixed mortar made of natural fine aggregates and the shrinkage ratio of mixed mortar made of recycled fine aggregates is larger, cured in natural environment.

Theoretical Analysis and Experimental Study of Strength Matching between Mortarless Grouted Concrete and Block Material

2013 ◽  
Vol 368-370 ◽  
pp. 1022-1026
Author(s):  
Ming Song Yi ◽  
Yan Qiu Xu ◽  
Ni Lou ◽  
Lan Ying Zhang ◽  
Guo Hui Yi
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Theoretical Analysis ◽  
Experimental Results ◽  
Joint Work ◽  
Matching Problem ◽  
Nonlinear Simulation ◽  
Strength Grade

In order to solve the strength matching problem of grouted concrete and block in mortarless grouted masonry, the article adopts the ANSYS nonlinear simulation to establish different strength grade models. And the result shows that, when the strength matching relationship between the mortarless block and the concrete reaches fc/fb=1~2, the grouted concrete and block compressive strength are brought into full play without material waste. The result is close to fcu/fcb = 1.5~3.5 (gross area) from the literature[1]. It is clear that, when the compressive strength of the two is close, their joint work can exert the best effects. It fits the experimental results and provides reference to the application of mortarless grouted block.

Experimental Study on the Mechanical Properties of Metal Oxides Filled PA1010 Composites

2007 ◽  
Vol 353-358 ◽  
pp. 1346-1349
Author(s):  
Chuan Hui Huang ◽  
Shi Bo Wang ◽  
Li Guo Liu
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Shear Strength ◽  
Metal Oxides ◽  
Experimental Results ◽  
Al2o3 Particles

This paper focuses on the effect of metal oxides on the mechanical properties of PA1010 composites, such as the tensile strength, compressive strength, shear strength and hardness. The experimental results show that the tensile strength of PA1010 composites filled with CuO and Al2O3 particles slightly decreases with the oxide contents increasing. However, the tensile strength of PA1010 composites filled with Fe3O4 particles increases, which has the average increment in tensile strength of 23.7% than the pure PA1010 materials. The results indicate that the compressive strength can be increased by adding CuO, Al2O3 and Fe3O4 particles into PA1010 polymer. The results exhibit that Fe3O4 particles have significant effects to increase the shear strength of PA1010 composites. However, Al2O3 particles filling reduce the shear strength of the composites.

scholarly journals ASSESSMENT OF TENSILE STRENGTH OF CONCRETE IN ACCORDANCE WITH ITS COMPRESSIVE STRENGTH

2020 ◽  
Vol 1 (41) ◽  
pp. 86-96
Author(s):  
Nhung Hong Tu ◽  
Cong Thanh Nguyen
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Tensile Test ◽  
Compression Test ◽  
Concrete Strength ◽  
Experimental Results ◽  
Strength Criteria ◽  
Primary Material ◽  
Compressive Strength Of Concrete

Concrete is the primary material used in construction. The importance of concrete is shown through its strength criteria which are  indispensable in all structural designs of the engineers. This article is to determine the tensile strength of concrete according to the compressive strength through an experimental study for thestrength grade B15, B20, B25 of concrete. In this study, tensile and compressive strength of concrete were determined by tensile test and compression test on the same sample. The experimental results show that the tensile strength of concrete is much smaller than its compressive strength. For concrete at 28 days, the tensilestrength is 12,0% to 12,8% of the compressive strength. The reliability of the above compressive strength value is ensured by the standard compression test. The results of this study are recommended for practical testing of concrete strength.

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