scholarly journals Effect of Notch on Strain Rate Concentration Factor of 304 Stainless Steel Bar

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Zhengyang Yu ◽  
Bin Zhong ◽  
Yaojie Sun ◽  
Lei Ma
Keyword(s):  
Numerical Simulation ◽  
Stainless Steel ◽  
Finite Elements ◽  
Notch Root ◽  
304 Stainless Steel ◽  
Notch Depth ◽  
Root Radius ◽  
Notch Angle ◽  
Notch Root Radius ◽  
Steel Bar

In this study, the notch effect of different types of 304 stainless steel rod notch is studied because of the problem of difficulty in measuring the notch root strain of 304 rod stainless steel, and the parameters of the annular notch root are analyzed. The notch angle, notch depth, and notch root radius are the main parameters of the stress field affecting the annular notch, and the mathematical expression of the strain rate concentration factor is derived. In order to verify the accuracy of the theory, the mechanical model of 304 stainless steel bar is established by finite element and numerical simulation calculation. The results show that the theoretical and finite elements have a high degree of agreement. When the notch angle increases, both theoretical and finite elements show a downward trend. When the notch depth of 304 stainless steel bar increases, both theoretical and numerical simulations show an increasing trend. The notch root radius of 304 stainless steel bar increases with decreasing numerical simulation.

Effect of notch root radius on tensile behaviour of 316L(N) stainless steel

2014 ◽  
Vol 31 (3) ◽  
pp. 239-248 ◽  
Author(s):  
J. Ganesh Kumar ◽  
M. Nandagopal ◽  
P. Parameswaran ◽  
K. Laha ◽  
M. D. Mathew
Keyword(s):  
Stainless Steel ◽  
Notch Root ◽  
Tensile Behaviour ◽  
Root Radius ◽  
Notch Root Radius

A Numerical and Experimental Study of the Factors Influencing the Differences in Cleavage Fracture Behaviour Between CVN and SENB Specimens

2012 ◽  
Author(s):  
Robin J. Smith ◽  
Anthony J. Horn ◽  
Andrew H. Sherry
Keyword(s):  
Finite Element ◽  
Cleavage Fracture ◽  
Fracture Behaviour ◽  
Numerical Study ◽  
Notch Root ◽  
Notch Depth ◽  
Root Radius ◽  
Element Analysis ◽  
Notch Root Radius ◽  
The Individual

The cleavage fracture behaviour of Charpy V-notch (CVN) and Single Edge Notch Bend (SENB) specimens differ due to the effects of notch root radius, notch depth, notch flank angle and loading rate. This paper presents an experimental and numerical study of the cleavage fracture behaviour of CVN, SENB and a range of non-standard intermediate specimen geometries. The intermediate geometries were selected to provide a basis for quantifying the differences in cleavage fracture behaviour between the CVN and SENB specimens by isolating the individual effects of notch-root radius, notch flank angle and notch depth. Finite element analyses were used to quantify crack and notch-tip stress fields. The study also includes a comprehensive experimental programme covering the range of notch geometries modelled using finite element analysis. The overall aim of the project is to establish links between Wallin’s Master Curve for fracture toughness and the common temperature dependence of Charpy energy observed by EricksonKirk et al.

Anomaly of Toughness Behavior with Notch-Root Radius

2009 ◽  
pp. 218-218-18
Author(s):  
KP Datta ◽  
WE Wood
Keyword(s):  
Notch Root ◽  
Root Radius ◽  
Notch Root Radius

scholarly journals Effect of notch root radius on fracture toughness of polycrystalline cubic boron nitride

2011 ◽  
Vol 78 (17) ◽  
pp. 2885-2895 ◽  
Author(s):  
D. Carolan ◽  
P. Alveen ◽  
A. Ivanković ◽  
N. Murphy
Keyword(s):  
Fracture Toughness ◽  
Boron Nitride ◽  
Notch Root ◽  
Cubic Boron Nitride ◽  
Root Radius ◽  
Polycrystalline Cubic Boron Nitride ◽  
Notch Root Radius

Numerical Simulation and Experimental Analysis of Laser Surface Remelting of AISI 304 Stainless Steel Samples

2010 ◽  
Vol 636-637 ◽  
pp. 1119-1124
Author(s):  
Noé Cheung ◽  
M.A. Larosa ◽  
Wislei R.R. Osório ◽  
M.S.F Lima ◽  
Maria Clara F. Lerardi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Stainless Steel ◽  
Laser Surface ◽  
Temperature Fields ◽  
304 Stainless Steel ◽  
Operating Parameters ◽  
Aisi 304 ◽  
Laser Surface Remelting ◽  
304 Austenitic Stainless Steel

The aim of this work is to develop a heat transfer mathematical model based on the finite difference method in order to simulate temperature fields in the laser surface remelting process. Convective heat transfer in the remelted pool is taken into account by using the effective thermal conductivity approach. Experiments of laser surface remelting of AISI 304 austenitic stainless steel samples were carried out in the present investigation, and numerical simulations were applied for the CO2 laser machine operating parameters. The work also encompasses the analysis of microstructural and microhardness variations throughout the resulting treated and unmolten zones. This study permits to conclude that numerical simulation is a useful tool in setting the laser operating parameters, enabling pre-programming of the extent of the treated area.

Influence of a finite notch root radius on fracture toughness

2005 ◽  
Vol 25 (5) ◽  
pp. 543-547 ◽  
Author(s):  
T. Fett
Keyword(s):  
Fracture Toughness ◽  
Notch Root ◽  
Root Radius ◽  
Notch Root Radius
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