IDENTIFYING DATA 2023_24
Subject (*) RESISTANCE OF MATERIALS Code 20204109
Study programme
Bachelor's Degree in Chemical Engineering (2010)
 Cycle 1st
Descriptors Credits Type Year Period
3 Compulsory Third 2Q
Language
Català
Department Mechanical Engineering
Coordinator
SAAVEDRA ORELLANA, ENRIQUE ALEJANDRO
 E-mail enriquealejandro.saavedra@urv.cat
Lecturers
SAAVEDRA ORELLANA, ENRIQUE ALEJANDRO
Web
General description and relevant information <p>What is the RM: The Resistance of materials is the science that deals with the calculation of the mechanical resistance, stiffness and stability of the parts of a structure (machines or building). The objective of the RM: Establish the criteria of an element to determine the most convenient material, the most suitable shape and dimensioning, to resist external forces in the most economical way. Objective of the subject: That the student develops the ability to analyze an RM problem in a simple and logical way by applying fundamental principles to its solution.</p>

Competences
Type A Code Competences Specific
 A1.1 Consistently apply knowledge of basic, scientific and technological subjects pertaining to engineering
 A1.2 Design, execute and analyse experiments related to engineering
 A4.8 Knowledge and use of the principles of the strength of materials (RI8)
Type B Code Competences Transversal
 B1.1 Communicate information clearly and accurately to diverse audiences (CT5)
Type C Code Competences Nuclear

Learning outcomes
Type A Code Learning outcomes
 A1.1 Aplica correctament els principis de la resistència de materials.
 A1.2 Comprova a través de l'experimentació i treball en grup en el laboratori els fonaments teòrics explicats a l'aula.
 A4.8 Determina les propietats mecàniques dels materials i el tipus d'assajos que s'usen per caracteritzar-les.
Identifica els diferents tipus de materials ceràmics, vidres, polímers i compostos i els relaciona amb els seus processos de degradació, vida i prevenció, i en prediu les propietats i aplicacions.
Aplica les condicions d'equilibri als sòlids rígids, conjunts de sòlids i sòlids deformables.
Determina l'estat tensió i deformació d'un prisma mecànic sotmès a qualsevol combinació d'accions
Modelitza diferents sistemes resistents i avalua la seva capacitat estructural segons criteris de resistència i rigidesa.
Type B Code Learning outcomes
 B1.1 Plan their communications: generate ideas, search for information, select and order the information, make schemes, determine the type of audience and the objectives of the communication, etc.
Draft documents with the appropriate format, content, structure, language accuracy and register, and illustrate concepts using the appropriate conventions: formats, titles, footnotes, captions, etc.
Type C Code Learning outcomes

Contents
Topic Sub-topic
SUBJECT 0. INTRODUCTION Know the scope of application of the elasticity and resistance of materials. Static and elastic equilibrium. Definition of prismatic piece. Concept of tension and deformation. The elastic problem. Hypothesis of elasticity.
SUBJECT 1. STATICS Strength concept. Concept of moment of a force. Balance concept. Binding conditions. Equilibrium of the solid in the plane. Balance of forces with the action of friction.
SUBJECT 2. TRACTION AND COMPRESSION Definition. Tensile state of traction and compression. Deformations. Own weight. Hyperstatic systems. Initial and thermal stresses.
SUBJECT 3. PRESSURE VESSELS Tensions generated by the pressure inside closed containers. Deformations. Constructive characteristics.
Standards and International Certification Codes.
SUBJECT 4. PURE SHEAR STRESS AND TORSIONAL MOMENT Pure shear. Elementary shear theory. Deformations. Calculation of riveted and screwed joints. Torsion in straight and circular bars. Distribution of tangential stresses. Diagrams. Calculation of power transmission axles.
SUBJECT 5 AND SUBJECT 6. GENERAL THEORY OF BENDING. ANALYSIS OF TENSIONS AND DEFORMATIONS COMBINED LOADS AND HYPERSTATIC BENDING Definitions. Diagrams in flexion. Navier's law for the calculation of normal stresses in pure bending. Stresses in simple bending. Tangential stresses: Colignon's formula. Principal stresses in simple bending. Dimensioning of bars in simple bending.
Definitions. Double integration method for calculating deformations. Mohr's theorem. Effect of shear stress.
SUBJECT 7. ELASTIC INSTABILITY. BUCKLING. Definitions. Euler's method. Limitations X method. Other methods. Eccentric compression.
SUBJECT 8. STRUCTURES Calculation and design of articulated reticular structures.
PRACTICE 1. TENSILE TESTING OF MATERIALS

Planning
Methodologies  ::  Tests
  Competences (*) Class hours
 Hours outside the classroom
 (**) Total hours
Introductory activities
0.5 0 0.5
Lecture
A1.1
A1.2
A4.8
 11 20.5 31.5
Problem solving, exercises in the classroom
A1.1
A4.8
B1.1
 4 8 12
Laboratory practicals
A1.1
A1.2
A4.8
B1.1
 7.5 5.4 12.9
Problem solving, exercises
A1.1
 4.5 8.2 12.7
Personal attention
0.5 0.9 1.4
 
Practical tests
A1.1
A4.8
 0 3 3
Short-answer objective tests
A1.1
A4.8
B1.1
 0 1 1
 
(*) On e-learning, hours of virtual attendance of the teacher.
(**) The information in the planning table is for guidance only and does not take into account the heterogeneity of the students.

Methodologies
Methodologies
  Description
Introductory activities The subject, the teachers and the methodology and evaluation will be presented.
Lecture The theoretical content of each subject will be presented in an applied manner.
Problem solving, exercises in the classroom Problems will be presented that will be solved in class, by the teacher, or by the students in a guided way.
Laboratory practicals There will be laboratory sessions where the students will apply the contents of the subject. The students will have to present a reasoned report on the development of the practice.
Problem solving, exercises Solving problems proposed by the teacher, to be solved individually
Personal attention Personalized attention is essential to be able to solve all the problems that the students have in the proposed problems, in the collection of problems given, in the laboratory practices as well as in the work that they will have to present.

Personalized attention
Description

Personalized attention will be provided at Enrique Saavedra Orellana: office 207 (located in the mechanical engineering department of the ETSEQ) during the established consultation hours. For Erasmus students, it is possible to have personalized attention in English.

Assessment
Methodologies Competences Description Weight        
Problem solving, exercises in the classroom
A1.1
A4.8
B1.1
 The methodology and rigor in solving numerical questions, by the group, of the problems proposed by the teacher will be evaluated 10%
Laboratory practicals
A1.1
A1.2
A4.8
B1.1
 The report presented will be evaluated as well as the assistance in the laboratory. 10%
Problem solving, exercises
A1.1
 The methodology and rigor in solving numerical questions of the problems proposed by the teacher will be evaluated 10%
Practical tests
A1.1
A4.8
 2 Individual exams. The first during class time, and the second at the end of the semester (official date) 55% (20 and 35 % each exam)
Short-answer objective tests
A1.1
A4.8
B1.1
 1 Individual exam at the end of the semester (official date) 15%
Others  
 
Other comments and second exam session

Programmable calculators or devices with communication and data transmission may not be used for the performance of the assessment tests, mobile phones, tablets and other electronic devices that are not expressly authorized for the test must be switched off and out of the vista. 

For the second call there will be an exam where all the contents of the subject will be included with a weight of 100% of the grade of the second call. In order to pass the subject, the minimum grade of the Partial Exam and Final must be higher than 3 Points.

The exams will be held face-to-face. You can consult the updated information in the Moodle area of ??each subject.

Sources of information

Basic De la Flor, Silvia; Ferrando, Francesc, Problemas de resistencia de materiales, Servei Lingüistic,
L. Ortiz Berrocal, Resistencia de Materiales, Mc. Graw-Hill, 2002
Gere, James M., Resistencia de Materiales, Thompson, 5ª edi,
Timothy A. Philpot, Mechanics of Materials , Wiley , 2012

Complementary J.L. Alcaraz et al., Elasticidad y resistencia de materiales, ETSII Bilbao, 2002
J. García Melero, Resistencia de materiales, U. País Vasco, 1984

Recommendations

Subjects that continue the syllabus
PROJECT MANAGEMENT/20204101


Subjects that it is recommended to have taken before
PHYSICS/20204003
MATERIALS SCIENCE/20204108
(*)The teaching guide is the document in which the URV publishes the information about all its courses. It is a public document and cannot be modified. Only in exceptional cases can it be revised by the competent agent or duly revised so that it is in line with current legislation.