【Daily Question】2015.06.11 Failure modes of pressure vessels (2 wealth points for replies; +3–8 additional wealth points for correct answers)
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Strength, stiffness, stability – three forms of failure.
①Strength; ② Stiffness; ③ Stability
1. Strength failure: The container undergoes excessive plastic deformation or rupture under load； 2. Stiffness failure: Excessive elastic deformation of the container, resulting in difficulties in transportation and installation or loss of normal operational capacity ； 3. Stable failure: The container suddenly changes shape under load, resulting in the loss of its functional capacity.
1. Strength failure: The container undergoes excessive plastic deformation or rupture under load； 2. Stiffness failure: Excessive elastic deformation of the container, resulting in difficulties in transportation and installation or loss of normal operational capacity ； 3. Stable failure: The container suddenly changes shape under load, resulting in the loss of its functional capacity.
①Strength； ②Stiffness ； ③Stability
Pressure vessel failures often manifest in three forms: 1. Strength; 2. Stiffness; 3. Stability
Correct answer: elastic failure, plastic failure, elastoplastic failure