Numerical Study on Plastic Strain Distributions and Mechanical Behaviour of a Tube under Bending

Amaechi, Chiemela Victor; Adefuye, Emmanuel Folarin; Oyetunji, Abiodun Kolawole; Ja’e, Idris Ahmed; Adelusi, Ibitoye; Odijie, Agbomerie Charles; Wang, Facheng

doi:10.3390/inventions7010009

Cited by 7 publications

(5 citation statements)

References 62 publications

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“…As seen on Figure 10, there are different locations of the damages to the helical spring reinforcement, which the authors identified as "damage sites". Similar fatigue studies on helix reinforcement include composite cords [76], as micro-cracks are seen in the composite materials [87], meaning the helix damage observed here is novel. From Figure 10, it is evident that the stress profile along the…”

Section: Results Of Helix Localised Damagesupporting

confidence: 69%

“…The liner wrinkling is an indication that the liner material may be compromised, or that the metal-composite interface between the liner and the composite material is weakened. Even in bonded contacts, there is still a high prevalence of micro-strains [87] and micro-cracks [88]. Thus, there might be micro-cracks resulting from the liner wrinkling.…”

Section: Results Of Hose's Liner Wrinklingmentioning

confidence: 99%

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Numerical Modelling on the Local Design of a Marine Bonded Composite Hose (MBCH) and Its Helix Reinforcement

et al. 2022

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With the exploration of oil trending deeper, from shallow waters to deep waters, there is a corresponding increase in the need for more sustainable conduit materials for production purposes. Secondly, there is an increasing demand for more energy from fossil fuels that are excavated with less expensive technologies. As such, short-service hoses are applied in the offshore industry. The industry has utilised composites to improve the material and solve different offshore issues. This study analyses a current problem facing the oil and gas industry at present regarding hose usage. This paper presents results from the local design and analyses of a marine bonded composite hose (MBCH), to present its result visualisations and nephographs. In this paper, the local design of a 1 m section of an MBCH was carried out in ANSYS under different loading conditions. Some design criteria were set, and other load conditions were used to simulate the model using the finite element model (FEM) approach. From this study, composites could be considered to improve conventional marine hoses. The findings of the study include the identification of linear wrinkling and damage sites on the helix reinforcement. An experimental investigation and proper content test are recommended for the bonded hose. Additionally, highly reinforced hose ends are recommended in the ends of the MBCH, as they had maximum stress and strain values. It is recommended that hose operations like reeling must be conducted under operational pressure and not design pressure, as the study shows that the design pressure could be high on the hose model.

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Section: Results Of Helix Localised Damagesupporting

confidence: 69%

Section: Results Of Hose's Liner Wrinklingmentioning

confidence: 99%

Numerical Modelling on the Local Design of a Marine Bonded Composite Hose (MBCH) and Its Helix Reinforcement

et al. 2022

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“…For the local design of the reeling hose, ANSYS Structural version R2 2020 [83,84] and Simscale OpenFEA [47,85] were utilised. Both platforms were used to ascertain the different physics investigated on the loading conditions of the marine reeling hose to present results from both statics and dynamic behaviour of the hose.…”

Section: Model Descriptionmentioning

confidence: 99%

“…Secondly, these multi-layered risers have similar behaviour to marine hoses in mechanical performance. They both exhibit some mechanical-related behaviours in terms of delamination, contacts, liner collapse, and fatigue [46][47][48][49][50][51]. In principle, these marine hoses are designed using both global and local designs [52][53][54][55].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modelling on the Mechanical Behaviour of Marine Bonded Composite Hose (MBCH) under Burst and Collapse

Amaechi

Chesterton

Butler

et al. 2022

JMSE

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Currently, the properties of composites have been harnessed on pipelines in the marine offshore industry. In this study, marine bonded composite hose (MBCH) is presented. It is aimed at understanding the stress/strain distribution on marine bonded hoses using local design pressure under burst and collapse cases. This study also investigates composite material modelling, hose modelling, liner wrinkling, helical spring deformation, and two MBCH models—with and without ovalisation. The ovalized model is considered the simplified model in this research. A mesh study was carried out on meshing the hose layers. In this study, local design pressure was considered and not operational pressure. This finite element model was adopted to predict the deformation and mechanical response behaviour of MBCH. From this study, composites could be considered to improve conventional marine hoses. The study findings include identification of buckled sections on the hose and stressed zones on the helix reinforcement. Highly reinforced hose ends are recommended in ends of the MBCH as they had maximum stress and strain values.

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“…Generally, the engineers are concerned with the challenges, concepts, awareness, utility, management of engineering facilities and development of new technologies [25] [26] [27] [28]. These technologies are used to develop construction materials like pipes and hoses [29] [30] [31] [32] as well as 3D-printed face shields [33] [34] [35].…”

Section: Introductionmentioning

confidence: 99%

Management of Biohazards and Pandemics: COVID-19 and Its Implications in the Construction Sector

Amaechi¹,

Amaechi²,

Amechi³

et al. 2022

CWEEE

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This paper investigates the impact of biohazards and pandemics on construction workers' health and well-being. A proper selection of control methods for biohazards and pandemics like COVID-19 pandemic will result in improved public health conditions. Occupational risks in the construction industry are also examined, with a focus on biohazards and pandemics, their containment, and the implications for health and safety. A safer work environment in the construction industry is encouraged. In this study, some statistical methods were used to analyse the data obtained from sampled questionnaire. According to the findings, fewer people in poor developing countries get routine check-ups compared to developed countries. The construction industries studied have little or no insurance plans for staff. It also demonstrates that personal protective equipment (PPE) such as nasal masks, helmets, hand gloves, and work aprons can assist in the control of biohazards in the construction sector, such as asthma, cancer, and asbestosis. There should be safety awareness programmes, conferences, and seminars, as well as

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Numerical Study on Plastic Strain Distributions and Mechanical Behaviour of a Tube under Bending

Cited by 7 publications

References 62 publications

Numerical Modelling on the Local Design of a Marine Bonded Composite Hose (MBCH) and Its Helix Reinforcement

Numerical Modelling on the Local Design of a Marine Bonded Composite Hose (MBCH) and Its Helix Reinforcement

Finite Element Modelling on the Mechanical Behaviour of Marine Bonded Composite Hose (MBCH) under Burst and Collapse

Management of Biohazards and Pandemics: COVID-19 and Its Implications in the Construction Sector

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