NDLI: A simplified computation method of plastic limit load for tee joint containing corner cracks

Content Provider	IEEE Xplore Digital Library
Author	Lijie Chen Zunqun Gong Qi Zhao Yinghua Liu
Copyright Year	2010
Description	Author affiliation: Department of Engineering Mechanics, Tsinghua University, Beijing, China (Yinghua Liu) \|\| School of Physics and Mechanical & Electrical Engineering, Xiamen University, China (Lijie Chen; Zunqun Gong; Qi Zhao)
Abstract	First, we introduce the iterative method of the modified elastic compensation method (KtECM) proposed by the authors for plastic limit load analysis of structures containing flaws. Then, plastic limit load of tee joint containing corner cracks under internal pressure is computed by using the KtECM and the elastic-plastic analysis method (EPAM). During computations, we adopt both 3-D tee joint geometry and a simplified plate model to consider through-wall cracks growing along the run pipe — a more dangerous crack growth mode. The errors between the results of the simplified plate models and those of the 3D tee joint models with different methods are within 10%, while the mean time consumed for the simplified plate models with the KtECM is about 20% of that for the 3-D unsimplified tee joint model with the EPAM. Finally, based on the results of the simplified plate model with the KtECM and those of the 3-D unsimplified tee joint model with the EPAM, we establish the empirical relationships between the crack length and the plastic limit load for the tee joint. These results illustrate that the simplified computation method of plastic limit load for tee joint is applicable and efficient for limit load analysis.
Starting Page	620
Ending Page	623
File Size	353234
Page Count	4
File Format	PDF
ISBN	9781424477371
e-ISBN	9781424477395
DOI	10.1109/MACE.2010.5536318
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solid modeling Electrochemical machining Corner crack Power system modeling Stress Computational geometry Physics computing Plastic limit load Safety Tee joint Plastics Iterative methods Ligaments Modified elastic compensation method
Content Type	Text
Resource Type	Article

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