Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure
Dome curvatures of pressure vessels often sustain highest level of stresses when subjected to various loading conditions. This research is aimed at investigating the effect of dome geometrical shape (hemispherical, torispherical, and ellipsoidal domes) on mechanical deformation and crack length of l...
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my.utm.843362019-12-28T01:55:28Z http://eprints.utm.my/id/eprint/84336/ Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure Teshnizi, Shokrollah Sharifi Gohari, Soheil TJ Mechanical engineering and machinery Dome curvatures of pressure vessels often sustain highest level of stresses when subjected to various loading conditions. This research is aimed at investigating the effect of dome geometrical shape (hemispherical, torispherical, and ellipsoidal domes) on mechanical deformation and crack length of laminated woven reinforced polymer (GRP) composite pressure vessels under low-velocity impact (LVI) (case one) or combination of LVI and internal pressure (case two). The study is based on finite element (FE) simulations with laboratory-based experimental validation studies. It was observed that the maximum vertical displacements () and crack length along the diameter of deformation (a) are both of lower magnitude in case one. Damage intensity and fracture differ for different combinations of loading. Only matrix breakage and debonding occurs in case one and fiber breakage occurs in case two. The dome geometric shapes used in this study were found to be invariant to both damage intensity and failure modes. Irrespective of the type of load applied, the magnitude of and crack length correlate with dome geometric shape as the maximum and the minimum occur in torispherical and hemispherical domes, respectively. The maximum and the minimum crack lengths also take place in torispherical and hemispherical domes, respectively. Elsevier B.V. 2018 Article PeerReviewed Teshnizi, Shokrollah Sharifi and Gohari, Soheil (2018) Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure. Archives of Civil and Mechanical Engineering, 18 (4). pp. 1715-1728. ISSN 1644-9665 https://doi.org/10.1016/j.acme.2018.07.006 |
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TJ Mechanical engineering and machinery Teshnizi, Shokrollah Sharifi Gohari, Soheil Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure |
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Dome curvatures of pressure vessels often sustain highest level of stresses when subjected to various loading conditions. This research is aimed at investigating the effect of dome geometrical shape (hemispherical, torispherical, and ellipsoidal domes) on mechanical deformation and crack length of laminated woven reinforced polymer (GRP) composite pressure vessels under low-velocity impact (LVI) (case one) or combination of LVI and internal pressure (case two). The study is based on finite element (FE) simulations with laboratory-based experimental validation studies. It was observed that the maximum vertical displacements () and crack length along the diameter of deformation (a) are both of lower magnitude in case one. Damage intensity and fracture differ for different combinations of loading. Only matrix breakage and debonding occurs in case one and fiber breakage occurs in case two. The dome geometric shapes used in this study were found to be invariant to both damage intensity and failure modes. Irrespective of the type of load applied, the magnitude of and crack length correlate with dome geometric shape as the maximum and the minimum occur in torispherical and hemispherical domes, respectively. The maximum and the minimum crack lengths also take place in torispherical and hemispherical domes, respectively. |
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Article |
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Teshnizi, Shokrollah Sharifi Gohari, Soheil |
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Teshnizi, Shokrollah Sharifi Gohari, Soheil |
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Teshnizi, Shokrollah Sharifi |
title |
Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure |
title_short |
Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure |
title_full |
Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure |
title_fullStr |
Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure |
title_full_unstemmed |
Fracture of laminated woven GFRP composite pressure vessels under combined low-velocity impact and internal pressure |
title_sort |
fracture of laminated woven gfrp composite pressure vessels under combined low-velocity impact and internal pressure |
publisher |
Elsevier B.V. |
publishDate |
2018 |
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http://eprints.utm.my/id/eprint/84336/ https://doi.org/10.1016/j.acme.2018.07.006 |
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1654960073204563968 |
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13.160551 |