Results 241 to 250 of about 31,818 (279)

NON-TRADITIONAL GEOMETRY FOR WEDGE-SPLITTING TEST

2021
The wedge-splitting test is widely used in the testing of fracture mechanical parameters of concrete or concrete-like materials. This test provides a stable crack propagation, which was analysed on a cube specimen. Another interesting application for measuring fracture mechanical properties combines wedge-splitting test with a three-point bending test.
Juhászová, Tereza, Miarka, Petr, Seitl, Stanislav   +2 more
openaire   +1 more source

Wedge-splitting tests for tensile strength and fracture toughness of concrete

Theoretical and Applied Fracture Mechanics, 2018
Abstract This study presents a new approach for determination of tensile strength ft and fracture toughness KIC of concrete using wedge-splitting (WS) specimens as neither property can be easily measured because of the heterogeneous material structures. The Boundary Effect Model (BEM) was extended to WS geometry and relevant equations were derived so
J.F. Guan, X.Z. Hu, C.P. Xie, Q.B. Li, Z.M. Wu   +4 more
openaire   +1 more source

Analyzing of Wedge Splitting Test on Asphalt Pavement Using Optical Measurements

Journal of Testing and Evaluation, 2017
Abstract This paper dealt with the characterization of opening mode fracture using Digital Image Correlation, coupled with a kinematic approach. Tests were carried out using a Wedge Splitting sample made in asphalt concrete AC12. The asphalt concrete was provided in the RILEM-SIB.
A. Jamaaoui, O. Pop, R. Ktari, A. Millien, C. Petit   +4 more
openaire   +1 more source

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

Advanced Materials Research, 2014
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 ...
Stanislav Seitl, Carlos Bermejo, Jakub Sobek, Václav Veselý   +3 more
openaire   +1 more source

Wedge Splitting Test on Douglas genotypes using an integrated mixed-mode approach

Theoretical and Applied Fracture Mechanics, 2017
Abstract The objective of this study is to estimate the influence of mixed mode on the global fracture energy. The experimental tests were carried out using three Douglas genotypes. In order to evaluate the fracture parameters the Wedge Splitting Tests were performed.
Amine Jamaaoui, Octavian Pop, Frédéric Dubois, Guy Costa   +3 more
openaire   +1 more source

Friction and plasticity effects in wedge splitting and cutting fracture tests

Journal of Materials Science, 1998
An analysis is given for determining G for removing a thin layer using a wedge. Corrections are described for both friction and the plastic bending of the layer. Experimental results are analysed for adhesive joints and for cutting tests on polymers and biological materials. In all of these the fracture toughness could be found.
openaire   +1 more source

Double-Edge Wedge Splitting Test: Preliminary Results

2010
A new technique to identify the residual strength in the post-cracking regime has been developed at the Politecnico di Milano for thin-walled Fibre Cementitious Composite structures. The idea is that to spatially uncouple compressive stresses from tensile stresses in an indirect tensile test, close to Brazilian test, by introducing only a mode I crack ...
DI PRISCO, MARCO, LAMPERTI TORNAGHI, MARCO GIANNI, LAPOLLA, SIMONE   +2 more
openaire   +1 more source

Tensile behaviour of magnesia-spinel refractories: Comparison of tensile and wedge splitting tests

Journal of the European Ceramic Society, 2013
In some industrial applications, the need to improve the thermal shock resistance of refractories by optimisation of their microstructural design is of major importance. Refractories with enhanced thermal shock resistance usually present a rather low resistance to crack initiation but high resistance to crack propagation (rising R-curves), as well as a
Grasset-Bourdel, Renaud, Alzina, Arnaud, Huger, Marc, Chotard, Thierry, Emler, Robert, Gruber, Dietmar, Harmuth, Harald   +6 more
openaire   +2 more sources

Influence of Defects on Reinforced Concrete Fracture Performance in Improved Wedge Splitting Tests

Journal of Testing and Evaluation, 2018
Abstract To predict the crack propagation and failure response of reinforced concrete structure, the effect of defects on reinforced concrete fracture characteristics was investigated. Based on the improved wedge splitting test device (an authorized patent No. ZL201410085111.7, China), specimens with various defects were tested.
Xin Hu, Shaowei Hu, Xiangqian Fan
openaire   +1 more source

Fatigue Fracture Behaviour Of Concrete Through Wedge-Splitting Tests

proceedings of the 11th International Conference on Fracture Mechanics of Concrete and Concrete Structures, 2023
Srinithya A, Yogesh R, Chandra JM Kishen
openaire   +1 more source