Ratcheting failure of pressurised straight pipes and elbows under reversed bending

@article{Vishnuvardhan2013RatchetingFO,
  title={Ratcheting failure of pressurised straight pipes and elbows under reversed bending},
  author={S. Vishnuvardhan and Gajendra P. S. Raghava and P. Gandhi and Manickam Saravanan and Sumit Goyal and Punit Arora and Suneel Kumar Gupta and Vivek Bhasin},
  journal={International Journal of Pressure Vessels and Piping},
  year={2013},
  volume={105},
  pages={79-89}
}
Abstract Ratcheting studies were carried out on Type 304LN stainless steel straight pipes and elbows subjected to steady internal pressure and cyclic bending load. The internal pressure for all the straight pipes was 35 MPa and in the case of elbows the internal pressure was varied for different elbows, ranging from 27.6 MPa to 39.2 MPa. Cyclic bending load was applied on the specimens by subjecting them to different levels of load-line displacement. The specimens have undergone significant… Expand
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References

SHOWING 1-10 OF 12 REFERENCES
Fatigue ratcheting studies on TP304 LN stainless steel straight pipes
Abstract ‘Fatigue Ratcheting’ is a phenomenon which leads to reduction in fatigue life of a structural component by loss of ductility due to cycle-by-cycle accumulation of plastic strain. OneExpand
Ratcheting behavior of pressurized elbow pipe with local wall thinning
Abstract Ratcheting deformation is studied on elbow pipe made of Z2CND18.12N stainless steel with local wall thinning subjected to constant internal pressure and reversed in-plane bending under loadExpand
Response and cyclic strain accumulation of pressurized piping elbows under dynamic in-plane bending
Abstract Eight pairs of carbon and stainless steel, long and short radius welding elbows were tested under conditions of steady internal pressure and in-plane, resonant dynamic moments that simulatedExpand
Ratcheting Study of Pressurized Elbows Subjected to Reversed In-Plane Bending
With a multi-axial test machine, ratcheting was studied experimentally for pressurized low carbon steel elbows under reversed bending. The maximum ratcheting strain occurred mainly in the hoopExpand
Ratchetting and ratchetting boundary study of pressurized straight low carbon steel pipe under reversed bending
Abstract With a quasi-three point bending apparatus, ratchetting and the ratchetting boundary were studied experimentally for a pressurized low carbon steel pipe under reversed bending. TheExpand
Failure Mode and Failure Strengths for Wall Thinning Straight Pipes and Elbows Subjected to Seismic Loading
It is important to assess the failure strengths for pipes with wall thinning to maintain the integrity of the piping systems and to make codification of allowable wall thinning. Full-scale fractureExpand
Uniaxial and biaxial ratchetting study of SA333 Gr.6 steel at room temperature
The phenomenon of ratchetting is defined as constant accumulation of plastic strain or deformation under combined steady state and cyclic loading. It can reduce the fatigue life or can cause failureExpand
Onset of ratchetting in pressurised piping elbows subjected to in-plane bending moments
Previous work has provided the ratchetting rates for a series of carbon steel and stainless pressurised piping elbows when subjected to in-plane simulated seismic bending moments. The work reportedExpand
Recent progresses in experimental investigation and finite element analysis of ratcheting in pressurized piping
Abstract This article presents an overview of recent progresses in experimental investigation and finite element analysis (FEA) of ratcheting behavior of pressurized piping. Ratcheting, namely theExpand
Ratcheting-Fatigue Failure of Pressurized Elbows made of Carbon Steel
Ratcheting-fatigue investigations have been carried out to understand the ratcheting-fatigue failure of carbon manganese steel (conforming to ASME specification of SA-333 Gr.6). Experiments have beenExpand
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