scholarly journals Analysis of Compact-Forced Simple Shear and Compact-Forced Double Shear Test Specimens for Shear Localization in Materials

2017 ◽  
Author(s):  
Thomas John LeBrun

2016 ◽  
Vol 49 (12) ◽  
pp. 4787-4797 ◽  
Author(s):  
L. Li ◽  
P. C. Hagan ◽  
S. Saydam ◽  
B. Hebblewhite ◽  
Y. Li


2016 ◽  
Vol 56 ◽  
pp. 168-175 ◽  
Author(s):  
L. Li ◽  
P.C. Hagan ◽  
S. Saydam ◽  
B. Hebblewhite


2013 ◽  
Vol 55 ◽  
pp. 277-297 ◽  
Author(s):  
Andreea Serbescu ◽  
Maurizio Guadagnini ◽  
Kypros Pilakoutas


Mechanika ◽  
2021 ◽  
Vol 27 (6) ◽  
pp. 451-458
Author(s):  
Kęstutis ŠPAKAUSKAS ◽  
Paulius GRIŠKEVIČIUS ◽  
Kazimieras PETKEVIČIUS ◽  
Vitalis LEIŠIS

The aim of the present work is to compare the interlaminar shear strength and fracture toughness of glued carbon fiber rods obtained using different experimental approaches and provide the effective way to characterise the interlaminar properties for reliable simulation of the delamination. Five different test methods (tension, single shear test, and double shear test, mode I and mode II delamination tests) were performed. Using the explicit LS-DYNA code the finite element model capable of simulating the damage process of bonded connection was developed. The interlaminar connection and delamination criteria were calibrated using the parameter identification methodology implemented in LS-OPT optimization tool.



2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Renliang Shan ◽  
Yongsheng Bao ◽  
Pengcheng Huang ◽  
Weijun Liu ◽  
Gengzhao Li

The free section of prestressed anchor cable is a weak part of support. A new supporting structure named Anchor Cable and C-Shaped Tube, which can bear transverse shear force, solves the problem that rock bolt and anchor cable are prone to shear failure in the free section and also solves the contradiction between high preload and low shear bearing capacity of support materials. Double-shear tests of Anchor Cable and C-Shaped Tube with smooth joint planes were carried out. Double-shear tests were carried out on the anchor cables with the diameter of 21.6 mm and the same type of Anchor Cable and C-Shaped Tube under different preload conditions. The influence of the preload on the shear performance of supporting materials and the enhancement effect of Anchor Cable and C-Shaped Tube supporting structure on the shear performance of anchor cables were analyzed. The test results confirm that Anchor Cable and C-Shaped Tube can improve the transverse shear resistance of the supporting material and increase the axial ultimate bearing capacity of the anchor cable during the shearing process. It is found that, during the double-shear test, the fracture form of the supporting materials is tensile fracture, and when it is sheared, Anchor Cable and C-Shaped Tube can reduce the stress concentration of the interaction between the joint surface and the surrounding rock and reduce the damage to the surrounding rock.





2013 ◽  
Vol 705 ◽  
pp. 3-8
Author(s):  
F. Gouny ◽  
F. Fouchal ◽  
P. Maillard ◽  
S. Rossignol

Construction system using timber frame with earth brick infill shows the formation of cracks at their interface with the fluctuation of temperature and humidity. Geopolymer binder has been identified to create good adhesion between these two materials. The aim of the study is to characterize the pullout and shear mechanical behavior of laboratory masonry assemblies of wood, geomaterial binder and extruded earth brick. Compression test on the brick were also performed. Full-field deformation of double shear test sample werecarried-out by digital image correlation (DIC) in order to better describe and understand the mechanical behavior. The geopolymer binder show good adhesion properties with mean shear test results around 1.5 MPa and pullout test result around 0.82MPa.



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