Wedge Splitting Test of Foam Concrete Specimens: Calibration Curves

2014 ◽  
Vol 627 ◽  
pp. 281-284 ◽  
Author(s):  
Stanislav Seitl ◽  
Ildikó Merta ◽  
Václav Veselý
Keyword(s):  
Foam Concrete ◽  
Homogeneous Case ◽  
Load Transmission ◽  
Calibration Curves ◽  
Wedge Splitting Test ◽  
Splitting Test ◽  
T Stress ◽  
Rectangular Groove ◽  
Concrete Interface ◽  
Wedge Splitting

In the present paper, the well-known wedge splitting test is applied on specimens made from foam concrete. In the case of this material the whole test specimens cannot be made from foam concrete but the rectangular groove, needed for the load transmission pieces, has to be made of stiffer material (typically marble). K-calibration (B1) and T-stress (B2) calibration curves for such specimens are introduced. The objective was to compare and discuss the calibration curves for the homogeneous case, the case with marble parts and the case with marble parts considering the glued marble/foam concrete interface

Two Parameter Description of Crack Tip Stress Fields for Wedge Splitting Test Specimen: Influence of Wedge Angle

2014 ◽  
Vol 969 ◽  
pp. 345-350
Author(s):  
Stanislav Seitl ◽  
Carlos Bermejo ◽  
Jakub Sobek ◽  
Václav Veselý
Keyword(s):  
Wedge Angle ◽  
Crack Tip ◽  
Stress Fields ◽  
Finite Element Software ◽  
Wedge Splitting Test ◽  
Splitting Test ◽  
T Stress ◽  
Two Parameter ◽  
Crack Tip Stress ◽  
Wedge Splitting

Two parameter fracture mechanics uses for description of the crack tip stress fields, not only the stress intensity factor (SIF), but the second term of Williams expansion the T-stress. In the paper, the SIF and T-stress of typical wedge splitting specimens with usual loading arrangements varying in the wedge angle are directly computed using ANSYS finite element software. The influence of the wedge angle value is quantified.

T -STRESS VALUES DURING FRACTURE IN WEDGE SPLITTING TEST GEOMETRIES: A NUMERICAL STUDY

2009 ◽  
pp. 419-428
Author(s):  
Stanislav SEITL ◽  
Pavel HUTAŘ ◽  
Václav VESELÝ ◽  
Zbyněk KERŠNER
Keyword(s):  
Numerical Study ◽  
Wedge Splitting Test ◽  
Splitting Test ◽  
T Stress ◽  
Wedge Splitting

scholarly journals Wedge splitting test for a steel–concrete interface

2005 ◽  
Vol 72 (17) ◽  
pp. 2565-2583 ◽  
Author(s):  
Rasmus Walter ◽  
Lennart Østergaard ◽  
John F. Olesen ◽  
Henrik Stang
Keyword(s):  
Wedge Splitting Test ◽  
Splitting Test ◽  
Concrete Interface ◽  
Wedge Splitting

Experimental Investigation on Relative Crack Length For Fracture Toughness of Concrete

2010 ◽  
Vol 146-147 ◽  
pp. 1524-1528 ◽  
Author(s):  
Xue Zhi Wang ◽  
Zong Chao Xu ◽  
Zhong Bi ◽  
Hao Wang
Keyword(s):  
Fracture Toughness ◽  
Experimental Investigation ◽  
Crack Length ◽  
Fracture Toughness Test ◽  
Test Results ◽  
Toughness Test ◽  
Wedge Splitting Test ◽  
Splitting Test ◽  
Wedge Splitting

The wedge splitting test specimens with three series of different relative crack length were used to study the influences of relative crack length on the fracture toughness of common concrete. The suitable formulation for fracture toughness of concrete with different relative crack length was gotten on comparing between fracture toughness test results and computation results of the model developed from Hu formula.

Numerical Stress Analysis of the Biaxial Tension-Compression Wedge-Splitting Test in Vicinity of the Crack Tip

2018 ◽  
Vol 784 ◽  
pp. 85-90
Author(s):  
Stanislav Seitl ◽  
Petr Miarka ◽  
Ildikó Merta ◽  
Zbyněk Keršner
Keyword(s):  
Stress Analysis ◽  
Mechanical Test ◽  
Biaxial Tension ◽  
Crack Tip ◽  
Biaxial Stress ◽  
Stress Fields ◽  
Wedge Splitting Test ◽  
Splitting Test ◽  
Compression Wedge ◽  
Wedge Splitting

Wedge-splitting test is widely used fracture mechanical test for its stability in measurement during the testing and many papers were published. However, the biaxial wedge-splitting test is relatively a new method and the numerical stress analysis of such test is necessary. Especially the investigation of the stress fields in the vicinity of the crack tip. In this contribution, influence of various biaxial stress level is discussed on values of first and second terms of William’s expansion.

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