Advanced steel technology, welding, fatigue and brittle fracture

Recommended Prerequisites

The pre-requisites of this course are those corresponding to the application for the PhD course CMM.

Teaching Methods

Classes run under theoretical and practical. In the first classes are presented the concepts and technologies associated with the concepts. In subsequent lessons are detailed aspects of technology and application exercises performed in class or lab. Students participate actively in the process of formation, being asked to present solutions to the problems posed. They are also asked to present and analyze the problems of its industrial enterprises. The evaluation is done through a written examination – 100%.

Learning Outcomes

Transmit the knowledge base considered in the area of metallic materials and the production of structures by welding technologies. Addressing the fundamentals and the standardization of metallic materials commonly in use in the construction of metal structures present the main technologies of fusion welding and solid state, as well as brazing technologies, and the selection criteria and application of these technologies. Introduce the main concepts of fracture mechanics necessary for selection of materials and design structures. The basis of the fatigue behavior of materials and welded structures. The aim is the development of instrumental skills (oral and written communication and problem solving), personal (critical thinking) and systemic (apply in practice the theoretical knowledge and development of self-criticism and self-assessment), essential for solving problems engineering in this area.

Work Placement(s)

No

Syllabus

Introduction, structural steels (metallurgical aspects, technological aspects, carbon steels, stainless steels, standardization), Aluminium alloys (metallurgical aspects, technological aspects, standardization) Welding Technology (introduction, welding processes, cutting processes) welding Metallurgy (characterization of the weld, cracking, mechanical properties, residual stress) fracture of welded joints (toughness concepts, introduction to fracture mechanics, methods of evaluation); fatigue of welded joints (concepts of fatigue , fatigue behavior of welded joints, increase resistance to fatigue) Quality of welded structures (welding defects, destructive testing, nondestructive testing standards).

Assessment Methods

Final Assessment
Exam: 100.0%

Bibliography

i) A. Loureiro, Notas de Tecnologia dos Processos de Ligação, Universidade de Coimbra, 2010.

ii) William F. Smith, Principles of Materials Science and Engineering, McGraw-Hill, Inc.

iii) J.F.O. Santos e L. Quintino, Processos de Soldadura, Edições ISQ.

iv) Carlos A. G. Moura Branco, Mecânica dos materiais; Fundação Calouste Gulbenkian.

v) C. Moura Branco, A. Augusto Fernandes, Paulo M. S. Tavares de Castro, Fadiga de Estruturas Soldadas, Fundação Calouste Gulbenkian.

vi) EN 1090:2009.

vii) NP EN 1993:2010.