Fatigue life prediction and verification of high-pressure hydrogen storage vessel

Wu, E; Zhao, Yu; Zhao, Bing; Wei-pu, XU

doi:10.1016/j.ijhydene.2021.06.177

Cited by 24 publications

(12 citation statements)

References 21 publications

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“…[19,20] The J-C model parameters of 316L in this study are shown in Table 5. [21] According to the research of Fabbro et al, [22] the peak pressure can be calculated using a triangular oblique wave, from which the peak pressure formula of the LSP can be obtained, and the expression is shown in Equations (2)(3)(4).…”

Section: Constitutive Model and Pressure Modelmentioning

confidence: 99%

“…Therefore, the remanufacturing of local areas is an effective way to put damaged parts back into use, thus maximizing the value of the remaining material. [1,2] Metal additive manufacturing is a major remanufacturing technology, including laser-directed energy deposition (DED) and laser powder bed fusion (LPBF). It is the repair of damaged parts by reverse engineering and powder supply additive manufacturing.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the remanufacturing of local areas is an effective way to put damaged parts back into use, thus maximizing the value of the remaining material. [ 1,2 ]…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Residual Stress Induced by Laser Shock Peening on Fatigue Crack Propagation Behavior in Directed Energy Deposition Stainless Steel

Duan,

Shang,

Luo

et al. 2023

steel research int.

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To investigate the effect of laser shock peening (LSP) on the fatigue crack propagation behavior of 316L stainless steel fabricated by directed energy deposition (DED), three‐dimensional finite element models of DED and compact tensile specimens before and after LSP are developed. The residual stress fields induced by DED and LSP are simulated, as well as the effects of different residual stresses on the stress intensity factor and effective stress ratio based on the contour integral method is also analyzed. The microstructure of the LSP region is observed by SEM. When the crack length increases from 12 mm to 22.5 mm, the average effective stress ratio of the DED specimen is 0.133, and the average effective stress ratio of the DED specimen after LSP decreases to 0.110, which decreases by 17.3%. The fatigue lives of the DED specimen before and after LSP are 62.7% and 105.2% of that of the hot‐rolled plate. After LSP treatment, the fatigue life of the DED specimen is increased by about 1.68 times. The fracture morphology in the transient fracture zone changes from ductile and brittle mixed fracture to ductile fracture.This article is protected by copyright. All rights reserved.

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Section: Constitutive Model and Pressure Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Residual Stress Induced by Laser Shock Peening on Fatigue Crack Propagation Behavior in Directed Energy Deposition Stainless Steel

Duan,

Shang,

Luo

et al. 2023

steel research int.

View full text Add to dashboard Cite

show abstract

“…To speed up the calculation and simulation of head fiber changes, the head is divided into ten equal parts, each part is given a winding angle, and the head is smoothed. 15,18 In addition, to study the effect of autofrettage pressure on the fatigue life of the vessel, element 23, 550 in the liner was selected. Therefore, the treatment of the head composite layer and the selection of the elements were shown in Figure 2.…”

Section: Meshing and Fiber Layeringmentioning

confidence: 99%

“…Bai 13 and Wu et al 14 have pointed out that the maximum stress and strain occur at the head of the vessel and the damage of the composite material does not affect the determination of the autofrettage pressure by establishing the progressive damage model of the composite vessel. Wu et al 15 studied the effect of autofrettage pressure on the equivalent stress amplitude and mean stress of a high-pressure hydrogen storage vessel under cyclic loading, and determined the best autofrettage pressure for the vessel. However, the above literature mainly studies the influence of autofrettage pressure on the bearing capacity of vessels and the prediction of the fatigue life.…”

Section: Introductionmentioning

confidence: 99%

Fatigue analysis of high-pressure hydrogen storage vessel based on optimum autofrettage pressure

Shiheng

Wei-pu

et al. 2022

Journal of Reinforced Plastics and Composites

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To improve the fatigue performance of high-pressure hydrogen storage vessels, a method is proposed to determine the optimal autofrettage pressure of the vessel using numerical simulation and experimental verification. First, a finite element model considering the actual structure of the vessel is established based on grid theory. Then, the effect of autofrettage pressure on the equivalent alternating stress amplitude of liner under cyclic fatigue load is studied by using the modified equation of Smith–Watson–Topper mean stress. Lastly, the optimum autofrettage pressure is determined according to the DOT-CFFC and CGH2R standards, and the fatigue life is predicted. The results show that under the optimum autofrettage pressure, the bearing capacity of the liner under working pressure and the fatigue life under fatigue cycle load are increased by 74% and 12 times, respectively. The experimental results are in good agreement with the numerical simulation results, with an average error of 6.3%. This research has important reference significance for the preliminary design stage of composite vessels.

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Numerical analysis on mechanical and fatigue behaviors of aviation electrical connector considering structural effect

Luo,

Wang,

Jiang

et al. 2023

Int J Numerical Modelling

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This work is motivated by the fact that the reliability of electrical connectors influenced by their mechanical behavior and fatigue life directly affects the working performance of the whole equipment system. In this paper, theoretical analyses of insertion force, maximum stress, and fatigue life in an aviation electrical connector are presented and the corresponding mathematical models are firstly derived. Then, to numerically investigate its mechanical behavior and fatigue life, a simplified 3D FE model is developed by using ABAQUS and FE‐SAFE software and verified by experiments and theoretical analysis. Finally, the distribution and evolution characteristics of contact forces, stress and fatigue life considering the influences of reed thickness and slot width are quantitatively analyzed in details. The results indicate that the insertion force first increases and then stabilizes at the level of 0.16 N as the pin head is fully inserted into the jack, which shows an opposite to the evolution of extraction force. Moreover, the maximum value of stress and the minimum value of fatigue life are all located at the root of the jack reed. Besides, unlike the small effect of slot width, the Fimax and σmax values obviously increase and the Nf value decreases with the increment of reed thickness.

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Fatigue life prediction and verification of high-pressure hydrogen storage vessel

Cited by 24 publications

References 21 publications

Effects of Residual Stress Induced by Laser Shock Peening on Fatigue Crack Propagation Behavior in Directed Energy Deposition Stainless Steel

Effects of Residual Stress Induced by Laser Shock Peening on Fatigue Crack Propagation Behavior in Directed Energy Deposition Stainless Steel

Fatigue analysis of high-pressure hydrogen storage vessel based on optimum autofrettage pressure

Numerical analysis on mechanical and fatigue behaviors of aviation electrical connector considering structural effect

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