Burst pressure reduction of various thermoset composite pressure vessels after impact on the cylindrical part

Blanc-Vannet, P.

doi:10.1016/j.compstruct.2016.10.099

Cited by 33 publications

(8 citation statements)

References 19 publications

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“…Burst tests were conducted after impacting a vessel to establish a relationship between the incident energy and the residual burst pressure. In a different study, Blanc-Vannet 13 summarized a large series of impacts on 200 pressure vessels with a wide range of thicknesses (5-30 mm) and impact energies (6-11,000 J). Furthermore, a comparison of the effect of impact on unpressurized and pressurized pressure vessels was made.…”

Section: Introductionmentioning

confidence: 99%

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The initiation and progression of damage in composite overwrapped pressure vessels subjected to contact loads

Weerts

Cousigné

Kunze

et al. 2021

Journal of Reinforced Plastics and Composites

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In order to investigate the residual strength of composite overwrapped pressure vessels subjected to impact loads, an extensive experimental study has been performed. The vessels are loaded up to different mechanical work levels (quasi-static) or with various impact energies (dynamic). After loading, the emerged damage in the pressure vessel is examined using computed tomography scans. The tests of vessels up to various energies enable us to visualize the initiation and progressive growth of damage. The overall influence of the damage is subsequently quantified by means of a burst pressure test. Accordingly, the reduction of burst pressure can be used to evaluate the global severity of the observed damage in the computed tomography scan. From the experiments, it is concluded that the first failure mechanisms, that is, delaminations, do not cause a meaningful reduction of the burst pressure. Shear bands, on the other hand, which are formed thereafter, do induce a significant decrease of the residual strength.

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Section: Introductionmentioning

confidence: 99%

“…For both empty and pressurized cylinders, the burst pressure starts to decrease after passing a certain threshold impact energy. Blanc-Vannet 13 found a relationship to determine this threshold energy for pressure vessels with different initial burst pressures and different inner radii.…”

Section: Introductionmentioning

confidence: 99%

The initiation and progression of damage in composite overwrapped pressure vessels subjected to contact loads

Weerts

Cousigné

Kunze

et al. 2021

Journal of Reinforced Plastics and Composites

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“…With regards to a freight tank wagon vessel, a range of numerical and experimental studies have been conducted to analyse the low-velocity impact resistance of a CFRP filament-wound pressure vessel. These include analysis of the impact response [39][40][41][42], damage prediction [43,44] and residual burst strength after impact [45][46][47][48]. Moreover, the effect of pressure-induced hoop and axial preload has also been studied [49,50].…”

Section: Impact Performance Of Compositesmentioning

confidence: 99%

Impact Resistance of Fibre Reinforced Composite Railway Freight Tank Wagons

2021

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The use of fibre reinforced composite materials is one method by which the lightweighting of rail vehicles can be achieved. However, the issue of impact damage, amongst other challenges, limits their safety certification. This issue is accentuated by the high levels of loading a rail vehicle may be subjected to during service. This paper addresses the significance of pre-tension on large composite structures, specifically for a composite redesign of a pressure vessel for a freight tank wagon. Preloading was determined to be detrimental to the overall impact resistance of a large composite vessel. At 15.71 J of impact energy, there was a 22% increase in mean absorbed energy for a uniaxially loaded panel over an unloaded panel. However, there was only a 4% difference in penetration depth between uniaxial and biaxial loading. A novel finding from these results is that the effects of preloading are more profound if the loading does not act parallel to a principal fibre direction. Matrix cracking and delaminations are the most common failure modes observed for specimens under low-velocity impact and are intensified by preload.

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“…However, these are expensive materials and, since construction standards such as ISO 11119-3 and EN 13923:2005 are very conservative, high safety factors and regular inspections during the lifetime are required, enhancing the manufacturing and the maintenance costs, restricting the widespread use of such structures. 3,[5][6][7][8] The failure criteria and the pre-defined normative inspections of COPVs are based on the behavior of metallic cylinders where usually, a safety factor of 4 or more is applied to the first ply failure load, which implies directly on the vessel cost. Nonetheless, composite structures fail in in a different and more complex way than metals (break of fibers, cluster formation, delamination, damage through thickness and so on) and in most of the time, the structure is still capable of pressurization after the first ply failure, being this criteria inadequate for fiber reinforced structures.…”

Section: Introductionmentioning

confidence: 99%

Using OBR for pressure monitoring and BVID detection in type IV composite overwrapped pressure vessels

Souza

Tarpani

2020

Journal of Composite Materials

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Type IV COPVs (Composite Overwrapped Pressure Vessels) are among the most suited structures for hydrogen storage. However, its complex modes of failure and requirement for periodic maintenance has led the industry to apply high safety factors on designs. This is one of the challenges inhibiting the widespread usage of the H2 in commercial vehicles. Structural health monitoring based on optical fibers is an emerging technology that can overcome these problems, as a neural network of sensors can be integrated to the structure during manufacturing and is readily accessible over the vessel lifetime. This gives information about the real structure condition, reducing overall maintenance costs. Here, core optical fibers were embedded in type IV COPVs during the manufacturing process and monitored with OBR (Optical Backscatter Reflectometer). Sensors were interrogated during an impact detection test and a pressurization test until burst failure. Fibers were capable of detecting the position and intensity of the damage in the first test and provided strain profiles over the entire length of the vessel for longitudinal and circumferential directions on the second. Optical microscopy of vessel sections showed matrix accumulation around the optical fiber as the main cause of sensor’s failure. During pressurization, steep peaks of strain in the dome regions from the early measurements indicated the burst failure site.

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Burst pressure reduction of various thermoset composite pressure vessels after impact on the cylindrical part

Cited by 33 publications

References 19 publications

The initiation and progression of damage in composite overwrapped pressure vessels subjected to contact loads

The initiation and progression of damage in composite overwrapped pressure vessels subjected to contact loads

Impact Resistance of Fibre Reinforced Composite Railway Freight Tank Wagons

Using OBR for pressure monitoring and BVID detection in type IV composite overwrapped pressure vessels

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