FINITE ELEMENT METHOD FOR SHIP STRUCTURES
2° Year of course - First semester
Frequency Not mandatory
- 7 CFU
- 56 hours
- Italian
- Trieste
- Obbligatoria
- Standard teaching
- Oral Exam
- SSD ING-IND/02
- Advanced concepts and skills
Knowledge and understanding: The objective of the course is to provide students with the capability of understanding an approach to the analysis of ship structures based on the implic/explicit modelling of the single ship’s structures. Fundamentals will be given to attack problems typical of Naval Architecture, possibly having also high complexity, taking into account also possible emerging areas. Course topics will be addressed making reference to analytical methods, numerical methods, and also experimental approaches. Multidisciplinary aspects of the subject will also be highlighted, both from a theoretical as well as from a design perspective.
Applying knowledge and understanding: The student will be able to apply the knowledge acquired during the course to standard problems associated with ship structures. The student will also have acquired the required fundamentals for developing a creative approach to problem solving. The student will be able to address structure-related problems by using simulation techniques, analytical methods, and/or semi-empirical approaches.
Making judgements: The student will be able to analyse a problem related to ship structure and choose the most appropriate approach for its solution.
Communication skills: The student will be able to clearly communicate the result of the solution of a problem related to the study of the ship structures, with particular reference to the assumptions made, the adopted calculation techniques and the results obtained from the processing of data. The student will be able to report these latter in an effective way, by combining descriptions, tabular results and graphs.
Learning skills: The student will acquire an approach to the topics of the course which promote the autonomous search of information through existing technical, scientific and regulatory literature.
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(1) Theory of finite element method to solving matematicl problem
(2) Traditional theory for the study of linear elastic solids
(3) Theory of finite element method applied to the solution of linear elastic solids
(4) Considerations on the accuracy of calculated stress-strain field
(5) Method of structural modelling
(6) Implementation of a structural problem by a general purpose software
(7) Use of the MSC Patran-Nastran for solving linear elastic problems
(8) Methods for the multi-level approach in the study of ship structures by FE models
(9) Classification societies guidelines for FE assessment of ship structures
(10) Complement of ship structure analysis
(11) Writing of reports of FE analyses of ship structures
reference book for the course: Fundamentals Of Finite Element Techniques For Structural Engineers; Authors: Brebbia, C A, Connor, J J; Butterworth and Company Publishers Limited, 1973; ISBN 978-0408704458; other reference books are suggested during the course, togheter with guidelines of the classification societies on the FE analysis of ship structures and tutorials on the use of the MSC Patran-Nastran software
(1) Theory of finite element method to solving matematicl problem
(2) Traditional theory for the study of linear elastic solids
(3) Theory of finite element method applied to the solution of linear elastic solids
(4) Considerations on the accuracy of calculated stress-strain field
(5) Method of structural modelling
(6) Implementation of a structural problem by a general purpose software
(7) Use of the MSC Patran-Nastran for solving linear elastic problems
(8) Methods for the multi-level approach in the study of ship structures by FE models
(9) Classification societies guidelines for FE assessment of ship structures
(10) Complement of ship structure analysis
(11) Writing of reports of FE analyses of ship structures
lectures, numerical exercises developed with the MSC Patran-Nastran software, and seminar teached by strucural designer from industry
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The final examination is a written examination and it deals with the topics addressed during the course. The examination consists in an exercise to be solved by using the FE software MSC Patran-Nastran. The exam is also based on a combination of open questions associated with theory of finite element method, practical modelling techniques, and regulations related to the FE assessment of ship structures.
The first part of the examination is aimed to the evaluation of Applying knowledge and understanding and Making judgements of the student. The second part of the examination is aimed to the evaluation of Knowledge and understanding and Making judgements of the student.
The course contents are in line with the following objectives:
Goal 9: Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation
Goal 12: Ensure sustainable consumption and production patterns
A critical design model aimed at reducing the weight of the ship (and so ship pollution in air and water) and using up of materials for the construction of the ship.