Industrial safety of pressure vessels - structural integrity point of view

Sedmak, Aleksandar; Algool, Mahdi; Kirin, Snežana; Rakićević, Branislav; Bakić, Ramo

doi:10.2298/hemind150423005s

Cited by 17 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Regarding probability, as already explained, it is separated into two major affecting factors, material defects and human factor. In the case of crack-like defects there is already new, interesting concept, based on fracture mechanics approach, applied recently for large spherical storage tank [6] and cylindrical pressure vessel [8], using the FAD to assess structural integrity of a cracked component. The basic concept of FAD is to evaluate ratios between the stress intensity factor and fracture toughness (Y coordinate), which can be interpreted as the probability of brittle fracture, and between the local stress and its critical value (X coordinate), which can be interpreted as the probability of plastic collapse, Fig.…”

Section: Risk Based Approach -New Methodologymentioning

confidence: 99%

“…1, using the simple definition of risk (product of probability and consequence). Even in that case, there are different options, some of them recently introduced [3][4][5][6][7][8], which turned out to be efficient and useful engineering tool, especially for managers when they have to make difficult decisions. Anyhow, simple methods do not provide precise solutions generally speaking.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Risk Based Assessment of Pressure Vessels Integrity

2018

Teh. vjesn.

View full text Add to dashboard Cite

New methodology for risk based approach to integrity assessment of pressure vessels has been introduced. Namely, the risk matrix has been defined with consequence taken as usual, whereas probability has been separated into two, emphasizing effects of human factor and material defects. Toward this end, the failure assessment diagram (FAD) has been used here as a simple engineering tool to estimate probability of the failure due to material defects. Probability of failure due to human factor has been estimated according to the survey performed (with operators and managers) in the firm where pressure vessel is located and operated. With consequence estimated according to the simple standard procedure or by using more complex procedures (API 581, RIMAP), the novel risk based structural assessment has been completed. As an example, cylindrical storage tanks for compressed air are analysed.

show abstract

Section: Risk Based Approach -New Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Risk Based Assessment of Pressure Vessels Integrity

2018

Teh. vjesn.

View full text Add to dashboard Cite

show abstract

“…Both failure mechanisms are represented as nondimensional ratios of working parameters and material properties. This approach has been applied recently to estimate risk probability [11,12] based on simple reasoning that the closer the point is to the limit curve the larger is the probability of failure. The limit curve is defined according to Dugdale model:…”

Section: Failure Assessment Diagrammentioning

confidence: 99%

Effect of Over-Pressure on Pipeline Structural Integrity

et al. 2019

View full text Add to dashboard Cite

The effect of proof over-pressure on pipeline structural integrity using fracture mechanics parameters is analysed in the case of pipeline in Reversed Hydro Power Plant, made of High Strength Low Alloyed steel with 800 MPa tensile strength due to special design requirements. To assess its structural integrity, extensive testing of the full-scale prototype had been performed, including hydrostatic pressurizing. Since plastic strain was recorded during proof over-pressurizing, special attention is given to the fact that this is actually a mechanism for crack initiation and propagation. To investigate this effect micromechanical modelling is considered, as well as the Failure Assessment Diagramme. It is shown that over-pressuring has potential detrimental effect on pipeline safety, i.e. structural integrity.

show abstract

“…Anyhow, the aforementioned approach is a bit more descriptive than engineering. Therefore, now we introduce a special procedure for risk analysis, based on fracture mechanics concept, [8][9][10][11].…”

Section: Figurementioning

confidence: 99%

Risk Management of a Hydro Power Plant – Fracture Mechanics Approach

Vučetić

Kirin²,

Sedmak

et al. 2019

Teh. vjesn.

View full text Add to dashboard Cite

Risk management of a hydro power plant has been analysed from fracture mechanics point of view. The research is focused on the risk and integrity assessment of pressure equipment in a reversible hydro power plant in order to determine to what extent it poses a risk to Bajina Basta settlement and its inhabitants. The risk matrix has been used to assess risk level according to probability and consequence in a more descriptive way, whereas the failure assessment diagram has been used as an alternative engineering approach, including level II analysis.

show abstract

Industrial safety of pressure vessels - structural integrity point of view

Cited by 17 publications

References 9 publications

Novel Risk Based Assessment of Pressure Vessels Integrity

Novel Risk Based Assessment of Pressure Vessels Integrity

Effect of Over-Pressure on Pipeline Structural Integrity

Risk Management of a Hydro Power Plant – Fracture Mechanics Approach

Contact Info

Product

Resources

About