ADVANCED COMPUTATIONAL MECHANICS WITH APPLICATIONS TO COMPOSITE MATERIALS AND STRUCTURES

International Teaching ADVANCED COMPUTATIONAL MECHANICS WITH APPLICATIONS TO COMPOSITE MATERIALS AND STRUCTURES

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0622100036
DEPARTMENT OF CIVIL ENGINEERING
EQF7
CIVIL ENGINEERING
2024/2025

YEAR OF COURSE 2
YEAR OF DIDACTIC SYSTEM 2022
SPRING SEMESTER
CFUHOURSACTIVITY
660LESSONS
Objectives
EXPECTED LEARNING OUTCOMES AND SKILLS TO ACQUIRE.
LEARN THE MECHANICAL MODELS AVAILABLE INTO THE LITERATURE FOR MODELING AND SIMULATING THE MECHANICAL RESPONSE OF FIBER REINFORCED POLYMERIC COMPOSITE MATERIALS.
KNOWLEDGE AND UNDERSTANDING
KNOW THE MECHANICAL PROPERTIES OF POLYMERIC COMPOSITE MATERIALS AS WELL AS THOSE OF THE INDIVIDUAL CONSTITUENTS: RESINS AND FIBERS. KNOW THE MAIN PRODUCTION TECHNIQUES OF A COMPOSITE MATERIAL: FROM HAND-LAY UP TECHNOLOGY TO PULTRUSION, PASSING THROUGH LAMINATION. KNOW HOW TO EVALUATE THE STRENGTH AND STIFFNESS OF THE COMPOSITE MATERIAL THROUGH EXPERIMENTAL TESTS AND / OR MECHANICAL FORMULATIONS. KNOW THE MECHANICS OF A LAMINATE PROFILE AND OF A PULTRUDED PROFILE. KNOW THE MAIN FRACTURE CRITERIA.
ABILITY TO APPLY KNOWLEDGE AND UNDERSTANDING
KNOWING HOW TO EXTEND THE MECHANICAL MODELS OF PLATE AND BEAM, PREVIOUSLY STUDIED FOR AN ISOTROPIC AND HOMOGENEOUS ELASTIC MATERIAL, TO THE CASE OF ORTHOTROPIC MATERIALS. KNOWING HOW TO EVALUATE THE MECHANICAL BEHAVIOR OF STRUCTURES MADE ENTIRELY OF COMPOSITE MATERIALS WITH PARTICULAR REFERENCE TO STABILITY AND BEAM-COLUMN CONNECTIONS.
AUTONOMY OF JUDGMENT
KNOWING HOW TO CHOOSE THE STRUCTURAL MODEL TO BE ADOPTED FOR THE CASE IN QUESTION. KNOWING HOW TO CRITICALLY EVALUATE THE RESULTS OF STRUCTURAL ANALYZES, CHECKING THEIR CORRECTNESS THROUGH ELEMENTARY MODELS.
COMMUNICATION SKILLS
KNOWING HOW TO WORK IN A GROUP AND ORALLY PRESENT THE PROBLEMS RELATED TO THE TOPICS STUDIED.
ABILITY TO LEARN.
KNOWING HOW TO APPLY THE ACQUIRED KNOWLEDGE AND KNOWING HOW TO INDEPENDENTLY LEARN THE NEW EVOLUTIONS OF KNOWLEDGE.
Prerequisites
THE SUCCESSFUL ACHIEVEMENT OF THE OBJECTIVES ABOVE REQUIRES A BASIC UNDERSTANDING OF THE MECHANICS OF SOLIDS AND STRUCTURES.
Contents
1. INTRODUCTION TO COMPOSITE MATERIALS. (10 HOURS)
A)OVERVIEW OF FULL COMPOSITE STRUCTURES AROUND EUROPE
B)MATERIALS (TYPES OF FIBERS AND MATRICES)
C)MANUFACTURING PROCESSES (HAND LAY-UP, PREPREG LAY-UP, BAG MOLDING, AUTOCLAVE PROCESSING, PULTRUSION, FILAMENT WINDING)
D)NOMENCLATURE AND STANDARDS

2. MICROMECHANICS. (10 HOURS)
A)REPRESENTATIVE VOLUME ELEMENT (RVE)
B)COMPOSITE MATERIALS FROM A CONSTITUTIVE POINT OF VIEW (FROM ANISOTROPIC TO ISOTROPIC MATERIAL)
C)STIFFNESS AND STRENGTH (ALONG LONGITUDINAL AND TRANSVERSE DIRECTION WITH RESPECT TO FIBER ORIENTATION, INPLANE SHEAR AND STRENGTH)

3. MACROMECHANICS. PLATE STIFFNESS AND COMPLIANCE. (15 HOURS)
A)COMMON LAMINATE TYPES (LAMINATE DESCRIPTION; SYMMETRIC, ANTISYMMETRIC, BALANCED, QUASI-ISOTROPIC; CROSS-PLY, ANGLE-PLY, SPECIALLY ORTHOTROPIC LAMINATES)
B)APPLICATION

4. FAILURE AND STRENGTH DESIGN. (5 HOURS)

A)FAILURE CRITERIA
B)LAMINATE STRENGTH

5. BEAMS. (3 HOURS)
A)PRELIMINARY DESIGN (DEFLECTION, STRENGTH, BUCKLING)
B)THIN WALLED BEAMS

6. APPLICATIONS AND STANDARDS. (17 HOURS)
A)FULL COMPOSITE STRUCTURES: (DRAFT OF THE TECHNICAL SPECIFICATION “DESIGN OF FIBRE-POLYMER COMPOSITE STRUCTURES” CEN TC/250)
B)BOLTED AND BONDED CONNECTION BETWEEN PULTRUDED PROFILES
C)MECHANICAL MODEL TO EVALUATE THE STRENGTH AND STIFFNESS OF A BEAM-TO-COLUMN CONNECTION BETWEEN PULTRUDED PROFILES
Teaching Methods
THE COURSE PROVIDES THEORETICAL LESSONS (4 CFU) AND PRACTICAL ONES (2 CFU). ATTENDANCE IN PERSON IS STRONGLY RECOMMENDED, ALTHOUGH NOT MANDATORY.
Verification of learning
THE ORAL EXAM LASTING ABOUT 60 MINUTES INCLUDES THE DISCUSSION OF THE PROJECT, AIMED AT VERIFYING THE STUDENT'S ABILITY TO INDEPENDENTLY/GROUP DEVELOP A NUMERICAL CODE (IN VISUAL BASIC) RELATING TO THE BEHAVIOR OF LAMINATED COMPOSITE MATERIALS. THE ORAL EXAM WILL VERIFY THE THEORETICAL KNOWLEDGE, WITH PARTICULAR REFERENCE TO MICRO AND MACRO MECHANICS, THE THEORY OF LAMINATION AND PULTRUDED COMPOSITE MATERIALS. THE SCORE OF THE ORAL EXAM DEPENDS ON THE GRADE IN-DEPTH STUDY OF THE PAPER AND THE STUDENT'S ABILITY TO EFFECTIVELY PRESENT THE CONTENTS AND CRITICALLY DISCUSS THE TOPICS ILLUSTRATED. EXCELLENCE REQUIRES THE USE OF AN ADEQUATE SCIENTIFIC LANGUAGE PROPERTY AS WELL AS THE ABILITY TO KNOW HOW TO CORRELATE THE VARIOUS TOPICS OF THE COURSE WITH OTHER DISCIPLINES.
Texts
LECTURE NOTES.

INTRODUCTION TO COMPOSITE MATERIALS DESIGN (TAYLOR AND FRANCIS) BY EJ BARBERO.

MECHANICS OF COMPOSITE MATERIALS (TAYLOR AND FRANCIS) BY ROBERT M. JONES

GUIDE FOR THE DESIGN AND CONSTRUCTION OF STRUCTURES MADE OF FRP PULTRUDED ELEMENTS. GUIDELINES CNR DT205/2007.

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