Common failure modes of pressure vessels

2022-03-12View Original

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First category: Short-term failure modes: 1) Brittle fracture 2) Ductile rupture 3) Leakage at joints due to excessive deformations 4) Crack formation or ductile tearing due to excessive local strains 5) Instability – elastic, plastic, or elastic-plastic. Second category: Long-term failure modes: 6) Creep rupture 7) Creep – excessive deformations at mechanical joints or resulting in unacceptable load transfer 8) Creep instability 9) Erosion, corrosion 10) Environmentally assisted cracking such as stress corrosion cracking, hydrogen-induced cracking, etc. Third category: Cyclic failure modes: 11) Progressive plastic deformation 12) Alternating plasticity 13) Fatigue under elastic strains (medium and high cycle fatigue) or under elastic-plastic strains (low cycle fatigue) 14) Environmentally assisted fatigue

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Common failure modes of pressure vessels

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