Systematic Stress and Progressive Failure Analysis of Composite Cryogenic Pressure Vessels

2007 ◽  
Author(s):  
Mark Garnich ◽  
D. Robbins ◽  
Erik Andrews ◽  
Emmett Nelson
Keyword(s):  
Failure Analysis ◽  
Progressive Failure ◽  
Pressure Vessels ◽  
Progressive Failure Analysis ◽  
Cryogenic Pressure Vessels

Progressive Failure Analysis of Pipeline Repaired by Composite Wrapping

2016 ◽  
Vol 853 ◽  
pp. 483-487
Author(s):  
Yan Yv Wang ◽  
Zhi Qiang Cheng ◽  
Bao Sheng Liu
Keyword(s):  
Failure Analysis ◽  
Critical Pressure ◽  
Progressive Failure ◽  
Failure Criteria ◽  
Pressure Vessels ◽  
Progressive Failure Analysis ◽  
Failure Propagation ◽  
Hashin Failure Criteria ◽  
Two Stages ◽  
Good Agreement

Composite overwrap systems have been widely used to repair damaged pipelines. Its effectiveness has been proven by many researches and engineering applications. However, the research on progressive failure mode of the repaired structure has not been reported. In the present paper, finite element method with Hashin failure criteria is developed to realize the progressive failure analysis. The predicted burst pressure is in good agreement with the burst experiment. Different from widely-reported failure progress in Composite Overwrapped Pressure Vessels (COPV), the progressive failure analysis for the defected pipeline overwrapped by composite reveals very different failure stages: stable failure propagation and rapid failure propagation. The identification of critical pressure between these two stages is valuable in composite reparation design for the defected pipeline.

Progressive Failure Analysis of Composite Pressure Vessels by Finite Element Method

2007 ◽  
Vol 348-349 ◽  
pp. 133-136 ◽  
Author(s):  
Li Li Tong ◽  
Zhen Qing Wang ◽  
S.H. Chen ◽  
Bao Hua Sun
Keyword(s):  
Finite Element Method ◽  
Failure Analysis ◽  
Pressure Vessel ◽  
Progressive Failure ◽  
Shell Element ◽  
Pressure Vessels ◽  
Fiber Failure ◽  
Progressive Failure Analysis ◽  
Composite Pressure Vessel ◽  
Structural Shell

The progressive failure analysis of composite pressure vessel under hydrostatic pressure has been carried out. The composite pressure vessel has been modeled by using layer structural shell element. After the failure of the weakest ply, the stiffness is reduced by either fiber failure or matrix failure. The stiffness of failed element has been totally discarded and other element are considered to remain unchanged after the weakest ply failure. The stress of the laminate at the same point is evaluated again to see if the laminate can carry additional load. This ply-by-ply analysis progresses until the ultimate strength of the pressure vessels is reached. A parametric study has been done on the progressive failure analysis.

Progressive failure analysis of thin-walled composite structures

2013 ◽  
Vol 95 ◽  
pp. 53-62 ◽  
Author(s):  
Diego Cárdenas ◽  
Hugo Elizalde ◽  
Piergiovanni Marzocca ◽  
Frank Abdi ◽  
Levon Minnetyan ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Composite Structures ◽  
Progressive Failure ◽  
Progressive Failure Analysis ◽  
Thin Walled
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