High-strength steels (HSSs) with nominal yield stress not less than 460 MPa have been increasingly employed in bridge structures. Compared SM490 normal-strength steel (NSS), HSSs, including SBHS500 and SM570, higher strength but lower ductility, brittle fracture can easily occur the HSSs members notches. Therefore, 48 tension specimens U-notch or V-notch made of SBHS500, SM570 structural are ca...

Three-point bend (TPB) and wedge splitting (WS) tests have been conducted on three different concretes and the specific fracture energy GF determined on the basis of the concept of local fracture energy. The latter is influenced by the free back surface of a notched test specimen, as explained by Hu and Wittmann. Tests on three or four specimen sizes with four notch to depth ratios confirm the ...

Editor—We would like to thank Dr Farooq for his interest on our article. However, there seems to be some misunderstanding. The practical purpose of our study was not to prove that a CXR may be omitted after central venous catheterization, but to minimize post-procedural adjustments of central venous catheter insertion depth. We agree that our technique is not so helpful for patients without pri...

INTRODUCTION A suprascapular nerve entrapment can occur at the suprascapular notch or at the spinoglenoid notch. So, the size and shape of the suprascapular notch are associated with suprascapular entrapment neuropathy as well as with an injury to the suprascapular nerve in arthroscopic procedures. The knowledge on the variations along the course of the nerve is important in understanding the s...

x-100 steel is one of the most recently developed materials for production of gas transportation pipelines. this material is severely anisotropic. smooth and notched round bars with different notch radius and flat notched specimens with different notch radius and notch depth in tension are tested to characterize the failure of this material under quasi-static loading condition. triaxiality fact...

We propose and demonstrate novel band-rejection filtering scheme based on lossy torsional acousto-optic (AO) coupling in a single polarization fiber. Simulation results show that the polarization insensitive notch depth of -30 dB is achievable for a 2-m-long fiber in the state-of-the-art fiber manufacturing technology. More efficient band-rejection in excess of -44 dB could be also feasible in ...

In regards to the problem of tubing precision separation, high-efficiency separation method for under eccentric wheel high-speed rotational bending fatigue loading is proposed, which aims promote initiation cracks at root annular V-notch on surface. Research stress concentration effect notch surface carried out. The design takes into account characteristics separation. numerical simulation calc...

INTRODUCTION The concept of the study was to compare the morphometry of the suprascapular notch (SSN) in females and males because its size and shape may be a factor in suprascapular nerve entrapment. MATERIAL AND METHODS The measurements of 81 scapulae included morphological length and width, maximal width and length projection of the scapular spine, and width and length of the glenoid cavit...

It is generally observed that the existence of geometrical discontinuity like notches in materials will lead to strength weakening, as a resultant of local stress concentration. By comparing the influence of notches to the strength of three typical materials, aluminum alloys with intermediate tensile ductility, metallic glasses with no tensile ductility, and brittle ceramics, we observed streng...

Although bedside ultrasonography can accurately distinguish esophageal from tracheal intubation, it is not used to establish the correct depth of endotracheal tube insertion. As indirect sonographic markers of endotracheal tube insertion depth have proven unreliable, a method for visual verification of correct tube depth would be ideal. We describe the use of saline to inflate the endotracheal ...