Strength of Materials

General

• Code: ΔΟΜ009
• Semester: 4th
• Study Level: Undergraduate
• Course type: Special Background
• Teaching and exams language: Ελληνικά
• The course is offered to Erasmus students
• Teaching Methods (Hours/Week): Lectures (4)
• ECTS Units: 5
• Class Schedule:
  • Mon 11:00 - 15:00: Θ - Δροσόπουλος (202)
• Exams Schedule:
  • 18/06/2026, 09:00 - 11:00:

Course Contents

• Classification of materials. Behavior law of structural steel. Proportional limit, elasticity, and yield
point. Strengthening. Necking phenomenon. Behavior law of ductile materials.
• Bending theory: Moment of inertia. Pure bending. Bending with axial force. Biaxial bending.
Neutral axis. Cross-section core.
• Pure shear. Shear due to bending of symmetrical sections. Distribution of shear stresses along the
height.
• Elastic line of a beam. Calculation of the elastic line – deflection of beams using the method of
double integration.
• Torsion theory: Torsion of beams of circular cross-section and cross-section of circular ring. Torsion
of beams with rectangular cross-section.
• Buckling of rods and columns. Combined stress of a beam with axial and transverse loads. Large
deformations of structures subjected to bending, second-order phenomena.
• Applications of deformation compatibility conditions.
• Material failure: Density theory of the rotational energy of deformations (Mises), maximum shear
stress theory (Tresca), internal friction theory (Mohr – Coulomb).
• Cyclic loads. Material fatigue.
• Creep and relaxation of materials.

Educational Goals

• Evaluation of materials according to the laws of behavior.
• Understanding the response and behaviour due to various loads.
• Ability to dimension structural elements. Selection of critical sections.
• Calculation of deformations – displacements.
• Assessment of structural material failure.

General Skills

– Search for, analysis and synthesis of data and information, with the use of the necessary technology
– Adapting to new situations
– Decision-making
– Working independently
– Team work
– Working in an interdisciplinary environment
– Project planning and management
– Criticism and self-criticism
– Production of free, creative and inductive thinking

Teaching Methods

Face to face.

Use of ICT means

Powerpoint presentations, E-learning platform for
educational material.

Teaching Organization

Students Evaluation

1. Assignment of tasks aimed at exploring the understanding
of the concepts taught.

2. Final written exam at the end of the semester (in Greek).
3. Each student is given the opportunity to review their
written exam and have their mistakes analyzed.

Recommended Bibliography

• http://users.teilar.gr/~p.lokkas/Ant_Yl.pdf
• R. L. Mott, «Applied Strength of Materials», CRC Press, 2015.
• Βουθούνης Παν.: «Αντοχή των υλικών-Μηχανική παραμορφώσιμου στερεού», Εκδ. Α.
  Βουθούνη, 2017.
• Βαρδουλάκης Ι., «Τεχνική Μηχανική ΙΙ», Εκδ. Συμμετρία, 1999.
• Τσαμασφύρος Γ., «Μηχανική παραμορφώσιμων σωμάτων Ι» Εκδ.Συμμετρία, 1990.
• Βελαώρας Γ. «Αντοχή Υλικών». 2η Έκδοση. Εκδ. Ίων, 1997.
• Beer F. – Johnston R. – DeWolf J. – Mazurek D., «Μηχανική των Υλικών», Εκδ.Τζιόλα, 2015.
• E. Schweda. «Αντοχή των Υλικών». Εκδ. Μόσχος Γκιούρδας, 1978.
• Bassin – Brodsky – Wolkoff. «Statics and Strength of Marerials». 4th Edition. MacMillan /
  MacGraw Hill,1992.
• S. S. Rattan, «Strength of Materials», Tata McGraw Hill, 2008.
• Pytel – Kiusalaas. «Mechanics of Materials», Thomson Learning Inc. Brooks/Cole, 2003.
• http://users.teilar.gr/~p.lokkas/Ant_Yl.pdf
  R. L. Mott, «Applied Strength of Materials», CRC Press, 2015.
  Vouthounis P.: «Strength Materials and Mechanics of Deformable Bodies», Vouthounis publ., 2017 (in
  Greek).
  Vardoulakis Ι., «Mechanics of Deformable Solids Bodies ΙΙ», Symmetry publ., 1999 (in Greek).
  Tsamasfyeos G., «Mechanics of Deformable Bodies Ι», Symmetry publ., 1990 (in Greek).
  Velaoras G. «Strength of Materials». 2nd ed. Ion publ., 1997 (in Greek).
  Beer F. – Johnston R. – DeWolf J. – Mazurek D., «Mechanics of Materials», Tziolas, 2015.