Investigations were undertaken to develop pullout tests that could be carried out on finished structures. Three possible approaches considered were: pulling out of tapered anchors placed in drilled holes; pulling out of bolts set in hardened concrete using epoxy; and measuring the force required to ...
3.1The pull-out resistance of fibers in UHPC matrix The use of steel fibers is able to bridge the cracks and transfer the stress from the matrix to the fiber, improving thetensile strength. The improving capacity of steel fibers is mainly determined by the fiber-matrix bond property, which ...
and 6mm Load %4 as applied through steel and titanium bolts with 10(ixB0; countersunk13; head,normai to the plane of the disc, while it was supported along the periphery by a speciaii.13; designed fixture13; Tests were carried out under stroke control using microprocessor based controller...
Connections for timber structures using concealed bonded-in rods offer one possible solution to the development of more efficient joining methods. However the importance of certain basic joint characteristics, and the influence of adhesive type and properties, are not yet fully understood and as such ...
(2007), FIB (2011) and Mallée et al. (2013), the embedment depth for bonded anchors must satisfy the conditionhef ≤ 20d. In fact, the assumption of uniform bond stresses alonghef, usually adopted to estimate the pullout strength, cannot be considered valid for arbitrarily large ...
The pull-through strength is calculated as: (5)where, is the pull-through load value at first load drop (see Eq. (2)) and is the area of the washer. Download: Download high-res image (724KB) Download: Download full-size image Fig. 8. Combined load rig assembled and connected to ...
This method also does not include tests for pretensioned bolts or mine roof support system evaluation. 1.2 This test method is applicable to mechanical, cement grout, resin, (epoxy, polyester, and the like), or other similar anchor systems. 1.3 Units—The values stated in inch-pound units ...
Pull-Off Adhesion Tester is an automated tool used to accurately test bond, adhesion or tensile strength of coatings, overlays and substrate surfaces.
[5] studied different configurations of potted inserts in Nomex honeycomb sandwich panels with carbon epoxy face sheets. They reported a strong relationship between insert pull-out strength and core height, core density as well as face sheet thickness, while the shear-out strength was dominated by...
out tests demonstrated that type 2 connections, particularly using 10 mm and 14 mm screws, outperformed traditional dowelled joints in terms of load capacity. Numerical analysis based on Eurocode 5 showed close alignment with experimental results, particularly for screws with actual thread diameters of...