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Volume 16, Issue 32 (11-2020)                   Marine Engineering 2020, 16(32): 107-117 | Back to browse issues page

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Naderian M, Kabiri Ataabadi A. Implementation of Life Estimation Algorithm of Composite High Speed Craft Shell due to Cyclic Sea Pressure. Marine Engineering 2020; 16 (32) :107-117
URL: http://marine-eng.ir/article-1-742-en.html
Implementation of Life Estimation Algorithm of Composite High Speed Craft Shell due to Cyclic Sea Pressure
Mohammad Naderian1 , Abdulreza Kabiri Ataabadi *1
1- Malek Ashtar University of Technology
Abstract:   (3039 Views)
According to increasing use of composites in high speed craft and exposing continuously to cyclic load, in this research, implementation of fatigue life estimation algorithm of composite shell of high speed craft has been done. The selected fatigue model which is based on reduction of mechanical properties and damage variable is introduced. This model has been implemented in finite element code (abaqus) with UMAT subroutine and validated with available results. Then, by using slamming load calculated from DNVGL standard and craft properties, the shell thickness is determined and fatigue life of the shell is analyzed with the faigue model due to the cyclic sea pressure. The results show that, the used faigue model has adequate ability for impelementation in the FEM software to fatigue life estimation and if the shell is designed with slamming pressure and assumed safety factor, the fatigue life due to cyclic sea pressure will be very high.
Keywords: High speed craft, Fatigue, Determine the fatigue life, Woven composite
Full-Text [PDF 939 kb]   (2758 Downloads)    
Type of Study: Research Paper | Subject: Ship Structure
Received: 2020/06/24 | Accepted: 2020/12/7
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