Tensile and Fatigue Testing and Material Hardening Model Development for 508 LAS Base Metal and 316 SS Similar Metal Weld under In-air and PWR Primary Loop Water Conditions

2015 ◽  
Author(s):  
Subhasish Mohanty ◽  
William Soppet ◽  
Saurin Majumdar ◽  
Ken Natesan
Keyword(s):  
Base Metal ◽  
Fatigue Testing ◽  
Model Development ◽  
Hardening Model ◽  
Primary Loop ◽  
Water Conditions ◽  
Metal Weld

Study on Incorporation of New Design Fatigue Curves and a New Environmental Fatigue Correction Factor for PWR Environment Into the JSME Environmental Fatigue Evaluation Method

2020 ◽  
Author(s):  
Seiji Asada ◽  
Shengde Zhang ◽  
Masahiro Takanashi ◽  
Yuichiro Nomura
Keyword(s):  
Stainless Steel ◽  
Base Metal ◽  
Stainless Steels ◽  
Evaluation Method ◽  
Austenitic Stainless Steels ◽  
Steel Base ◽  
Improved Design ◽  
Fatigue Evaluation ◽  
Cast Stainless Steel ◽  
Metal Weld

Abstract Improved design fatigue curves were developed in the Subcommittee on Design Fatigue Curve in the Atomic Energy Research Committee in the Japan Welding Engineering Society (JWES). Working Group on Design Fatigue Curves (WG DFC) in the JSME has studied the validity and the applicability of the improved design fatigue curves developed in the JWES to incorporate into the JSME Environmental Fatigue Evaluation Method. The authors propose a fatigue analysis method using the design fatigue curves developed in the JWES that are applied revised factors to optimize the environmental fatigue analysis. Also, the Japanese pressurized water reactor (PWR) utility group developed equations of environmental fatigue factors (Fen) for austenitic stainless steel base metal, weld metal and cast stainless steel in PWR environment. The WG DFC has investigated the Fen equations and concluded that the Fen equation of austenitic stainless steel base metal is the most conservative among the three equations and close to NUREG/CR-6909 Rev.1 [24]. The authors propose to use the Fen equation for base metal for austenitic stainless steels for all of the base metal, weld metal and cast stainless steel. In addition, the authors have confirmed that the employment of the proposed Fen equation to the proposed design fatigue curves of austenitic stainless steels accurately predicts the existing environmental fatigue test data of austenitic stainless steels, which were used in the development of the current Fen equation of austenitic stainless steels in PWR environments in the JSME Environmental Fatigue Evaluation Method. Therefore, the proposed Fen equation can be applied to environmental fatigue evaluation for austenitic stainless steels.

Server Hardening Model Development

2009 ◽  
pp. 319-342
Author(s):  
Doug White ◽  
Alan Rea
Keyword(s):  
Model Development ◽  
Complete Model ◽  
Hardening Model ◽  
Security Components

In this chapter the authors present essential server security components and develop a set of logical steps to build hardened servers. The authors outline techniques to examine servers in both the Linux/ UNIX and the Windows Environment for security flaws from both the internal and external perspectives. Ultimately, the chapter builds a complete model which includes advice on tools, tactics, and techniques that system administrators can use to harden a server against compromise and attack.

Laser hardening model development based on a semi-empirical approach

2012 ◽  
Vol 5 (3/4) ◽  
pp. 247 ◽  
Author(s):  
Silvia Martínez ◽  
Eneko Ukar ◽  
Aitzol Lamikiz ◽  
Ivan Tabernero ◽  
Fernando Liebana
Keyword(s):  
Model Development ◽  
Empirical Approach ◽  
Laser Hardening ◽  
Hardening Model ◽  
Semi Empirical

The Tensile and Shear Strength of a Base Metal Weld Joint Used in Dentistry

1981 ◽  
Vol 60 (2) ◽  
pp. 154-158 ◽  
Author(s):  
M.I. MacEntee ◽  
E.B. Hawbolt ◽  
J.I. Zahel
Keyword(s):  
Shear Strength ◽  
Base Metal ◽  
Weld Joint ◽  
Metal Weld
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