Fuzzy Model-based Charpy Impact Toughness Assessment for Ship Steels
نویسندگان
چکیده
منابع مشابه
Ultrahigh Charpy impact toughness (~450J) achieved in high strength ferrite/martensite laminated steels
Strength and toughness are a couple of paradox as similar as strength-ductility trade-off in homogenous materials, body-centered-cubic steels in particular. Here we report a simple way to get ultrahigh toughness without sacrificing strength. By simple alloying design and hot rolling the 5Mn3Al steels in ferrite/austenite dual phase temperature region, we obtain a series of ferrite/martensite la...
متن کاملConfidence Interval Assessment for Charpy Impact Energy Predictions – A Gaussian Mixture Model (GMM)-Based Approach
One of the obstacles of applying data-driven models in industry is the lack of confidence in the accuracy of the model predictions. One way of overcoming this is by adding a confidence interval on the predictions. In this paper, we propose a new approach for the confidence interval assessment for model predictions based on a Gaussian Mixture Model (GMM) framework. The advantages of the presente...
متن کاملA NOVEL PROCEDURE FOR MEASURING THE IMPACT FRACTURE TOUGHNESS KId WITH PRECRACKED CHARPY SPECIMENS
A procedure i s presented f o r determining the impact f r a c t u r e toughness K w i t h precracked Charpy specimens wi thout performing any load measurements.'?he Kid-val ue i s obtained from preestabl ished impact response curves and a measurement o f t h e t ime-to-fracture. The measuring technique i s f u l l y dynamic and does not impose any r e s t r i c t i o n s on t h e t e s t condi...
متن کاملImpact Toughness Modification of NIST Low-Energy Charpy Verification Specimens for Testing at Room Temperature
The possibility for the National Institute for Standards and Technology (NIST) to certify Charpy reference specimens for testing at room temperature (21 °C ± 1 °C) instead of −40 °C was investigated in a previous study, in which a slightly increased likelihood of specimen jamming was observed at the low-energy level (13 J to 20 J). Moreover, there is a concern that the higher impact toughness o...
متن کاملChannel Safety Assessment in Ship Navigation Based on Fuzzy Logic Model
1 With the progress of economic globalization, international shipping trade is developing 2 fast, resulting in a gradual rise in the amount of transportation in channel. In turn 3 maritime affairs occur more frequently due to that than before, and the circumstance of 4 transportation in channel is getting more complex. It is a great influence to the safety of 5 navigation as well as a problem m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ISIJ International
سال: 2004
ISSN: 0915-1559
DOI: 10.2355/isijinternational.44.1108