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Keywords: limit load
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Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. October 2022, 144(5): 051307.
Paper No: PVT-21-1130
Published Online: February 16, 2022
... stress distributions better than the power law and closer to elastic-plastic solutions for textbook cases such as thick cylinder, beam, etc. This part of the article offers several numerical examples to demonstrate the robustness of the method. Upper and lower bound limit loads are calculated using...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. October 2022, 144(5): 051306.
Paper No: PVT-21-1129
Published Online: February 16, 2022
...Sathya Prasad Mangalaramanan Statically admissible stress distributions are necessary to evaluate lower bound limit loads. Over the last three decades, several methods have been postulated to obtain these distributions using iterative elastic finite element analyses. Some of the pioneering...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. June 2022, 144(3): 031303.
Paper No: PVT-20-1194
Published Online: January 18, 2022
.... In this paper, the effect of global and local limit load solutions for defective elbows on the reference stress and hence the J predictions is investigated using published three-dimensional elastic-plastic finite element (FE) J results, in order to create guidance for users to follow when performing structural...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. April 2022, 144(2): 021302.
Paper No: PVT-21-1039
Published Online: August 18, 2021
... and limit analysis of KH piping elbows subjected to internal pressure and cyclic bending moments. Various loading combinations are investigated to generate the shakedown limit and the plastic limit load interaction curves. The effects of material hardening, elbow angle, and loading conditions...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. February 2021, 143(1): 011302.
Paper No: PVT-19-1264
Published Online: August 11, 2020
...Min Xu; Jian-bin Wen; Yu-jie Zhao; Chang-Yu Zhou; Xiao-hua He In engineering, many pressure pipes are made of steels with good plasticity, which are subject to internal pressure, axial force, shear force, bending moment, torsion moment or their combined loads. The plastic limit load is an important...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. December 2015, 137(6): 061203.
Paper No: PVT-13-1181
Published Online: December 1, 2015
... be the reason of the difference in results between the experiments and the model. The disparities between the results are less than 15% except the Test No. 9. It indicates that the modeling method is correct and the limit load calculated by the FE method is effective and can be used as the basis for analysis...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. October 2013, 135(5): 051201.
Paper No: PVT-12-1124
Published Online: August 26, 2013
.... Editor: Haofeng Chen. 08 08 2012 10 04 2013 Simplified limit analysis techniques have already been employed for limit load estimation on the basis of linear elastic finite element analysis (FEA) assuming elastic-perfectly-plastic material model. Due to strain hardening, a component...
Journal Articles
Article Type: Research-Article
J. Pressure Vessel Technol. December 2012, 134(6): 061501.
Published Online: October 18, 2012
..., and evaluate the fatigue life. The linear elastic FEA (finite element analysis) of storage with single, two, and three defects is performed. The limit load analysis is also discussed with two different iterative methods. The result shows that IRIS can be used in detecting internal and external defects...
Topics: Storage, Stress
Journal Articles
Article Type: Design And Analysis
J. Pressure Vessel Technol. August 2012, 134(4): 041202.
Published Online: July 9, 2012
.... By introducing the element bearing ratio (EBR), generalized yield criterion as well as the reference volume concept, the elastic modulus reduction method (EMRM) is improved and applied to determine both the upper and lower bounds on limit loads of the BPHS. The global safety factor (GSF) is defined as the ratio...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011203.
Published Online: December 1, 2011
... ratchetting, and limit loads are investigated. Influence functions of the yield stress of WM on the maximum temperature ranges and limit loads are generated. The results confirm the applicability of the extended LMM to the cracked welded pipe. Ratchet limit interaction curves of the welded pipe...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011204.
Published Online: December 1, 2011
...Rongsheng Li; Zengliang Gao; Yuebao Lei A global limit load solution is derived in this paper for embedded off-set elliptical cracks in a plate under combined tension and bending, based on the net-section collapse principle. The new limit load solution is validated using 3D elastic-perfectly...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2010, 132(1): 011202.
Published Online: December 7, 2009
... or B ′ C , the permanent plastic strains go on increasing indefinitely—known as “ratchetting.” The point C corresponds to the limit load for the applied mechanical load. Significant differences can be seen between the reverse plasticity limit AB considering temperature-independent yield stress...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. February 2009, 131(1): 011204.
Published Online: November 17, 2008
...R. Adibi-Asl; R. Seshadri Limit loads are determined in this paper by invoking the concept of equivalence of “static indeterminacy” that relates a multidimensional component configuration (with cracks) to a “reference two-bar structure.” Simple scaling relationships are developed that enable rapid...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. May 2007, 129(2): 296–305.
Published Online: July 20, 2006
...R. Adibi-Asl; R. Seshadri Several upper-bound limit-load multipliers based on elastic modulus adjustment procedures converge to the lowest upper-bound value after several linear elastic iterations. However, pressure component design requires the use of lower-bound multipliers. Local limit loads...
Journal Articles
Article Type: Research Papers
J. Pressure Vessel Technol. August 2007, 129(3): 391–399.
Published Online: July 3, 2006
... to determine the limit load of components with cracks or crack-like flaw. On the basis of linear elastic Finite Element Analysis (FEA), by specifying spatial variations in the elastic modulus, numerous sets of statically admissible and kinematically admissible distributions can be generated, to obtain lower...
Journal Articles
Article Type: Article
J. Pressure Vessel Technol. February 2005, 127(1): 61–69.
Published Online: March 15, 2005
... an inelastic stress analysis. The experimentally determined limit load is compared with that from the finite element analysis. The stress concentration factor, the spread of the plastic area, and the behavior of the deformation are provided. Also, a burst test of the model vessel is carried out to provide some...