1. Multivariate random variables
2. Chi-square test

Goodness of fit test, test of independence, test of Homogeneity, test for equality of several proportions

3. Simple and Multiple regression
4. One way ANOVA and more
5. Non parametric tests

(Wilcoxon, Mann- Whitney, Kruskall – Wallis, Friedman tests)

LEARNING OUTCOMES

In this course advanced statistical techniques for the analysis of experimental data are presented analytically. Moreover, the statistical package SpSS 21.0 is also presented.

The main purpose of the course is to familiarize students with statistical methods such as simple and multiple regression, analysis of variance and non-parametric tests which are very useful tools for engineers.

Upon successful completion of the course the student will be able to:

• Use regression models in order to describe the linear relationship between one dependent variable and one or more independent variables and also to predict the dependent variable based on the observations of the independent variables.
• Test for normality of the data and select the proper statistical test (parametric or non-parametric tests)
• Select and apply the proper statistical technique in order to extract useful results and conclusions

Use statistical package SpSS .

Το άρθρο Εxperimental Data Analysis εμφανίστηκε πρώτα στο MEAD.

The lightweight design philosophy and the application of strength of materials principles in lightweight design – Design principles. Analysis of thin-walled members with closed or open cross section – shear center – warping and distortion, torsion-bending problems of thin bodies. Analysis of thin-walled pressure vessels under internal / external pressure, bending disturbances due to geometrical discontinuities. Shear flow theory – analysis of beam shear in closed or open cross-section, multiple-web beams, flat or curved members. Simplified analysis of aeronautical structures (fuselage – wing under bending, torsion and shear, wing ribs). The principle of virtual work – The unit load method. Maxwell-Mohr method. Applications in aeronautical and lightweight structures.

LEARNING OUTCOMES

The course aims to provide the basic knowledge required in the structural analysis of typical Aircraft Structures, such that the stress state of basic aircraft components (wing, fuselage, tail, etc) may be calculated. The main learning outcomes expected are:

• Students know the role of the basic aircraft components;
• Students know how to calculate loading on these basic components of aircraft structures;
• Students are able to perform stress analysis of the primary components of an aircraft structure, using simple and more advanced analysis methodologies.

The course knowledge is exploited in other / next courses, such as ‘Finite Element for Structural Analysis’ and ‘Fracture Mechanics and Structural Integrity’.

Το άρθρο Light Structures εμφανίστηκε πρώτα στο MEAD.

Atomic structure of materials, Structure of metallic materials: Crystal structure, structure imperfections, microstructure hardening mechanisms; Structure of composite materials: Definition, Components, Architecture, Special Mechanical Properties; Mechanical behavior: Definition and basic theories, Mechanical behavior of metallic materials under uniaxial pseudo static loading conditions: Tensional testing, deformations coupling testing, maximum load conditions; Mechanical behavior of composite materials under pseudo static loading conditions: Micro-mechanical and Macro-mechanical analysis of the elastic behavior of the layer, Strength of the layer; Mechanical behavior of metallic materials under fatigue loading: Fixed range fatigue, Oligocyclic fatigue loading, Fatigue crack propagation, Fatigue life Calculations, Mechanical behavior of composite materials under fatigue loads: Mechanisms of fatigue failure in composite materials, Fatigue failure functions, Life expectancy using S-N curves, Fatigue failure correlation with mechanical properties; Numerical modeling of mechanical behavior of composite materials, Mechanical behavior of metallic materials at high temperatures (creep): Creep behavior of materials and structural elements, Oxidation and corrosion: Corrosion mechanisms, Methods of protection, Corrosion and mechanical load interaction, Mechanical behavior of corroded materials and structures.

LEARNING OUTCOMES

The students attending this course gain the basic knowledge of the structure, architecture and mechanical properties of the Composite Materials, understanding of the mechanical behavior of  metals and composite materials under pseudo static and fatigue loading conditions, prediction of fatigue damage and its correlation with mechanical properties, understanding of the creep and corrosion phenomenon.

This knowledge is necessary and is used in many subsequent courses of Mechanical Engineering and Aeronautics, such as Light Structures, Introduction to Composite Materials, Mechanical Behavior of Materials, Finite Elements for Structural Analysis, Mechanics of Composite Materials etc.

The learning outcomes of this course correspond to the descriptive indicator 8, according to the European Qualifications Framework.

Το άρθρο Mechanical Behavior of Materials εμφανίστηκε πρώτα στο MEAD.

Introduction to biomechanics principles, Structural elements of the human body.

Biomechanics of the musculoskeletal system – bones, muscle, cartilage, tendons, ligaments: Basic anatomy and physiology, Mechanical functions, Physiological functions, Composition, Microscopic- macroscopic structure, Tissue mechanical characteristics, Bone fracture and remodeling, Mechanical adaptation. Muscle contraction and its modeling, Kinematics elements, Musculoskeletal modeling.

Biomechanics of soft connective tissues (SCT): Anatomy – histology of SCT. Biopolymeric components SCT (collagen, elastin, proteoglycans, glycosaminoglycans). Mechanics of SCT, static & dynamic, correlation with its components and structure. Mathematical modeling of SCT mechanics.

Cell biomechanics: cell structure, structure and composition of cell membrane and cytoskeleton; Mechanical behavior of cell and its components; modeling of cell mechanical behavior. Mechanisms of adhesion and forces on extracellular matrix.

Keywords: Biomechanics; Tissues; Biological systems, Mechanical behavior; Modeling, Structure-function of biological systems

LEARNING OUTCOMES

This course is an introduction to the mechanical behavior of biological tissues and systems.

The aims of the course are to:

• Develop an understanding of the important issues regarding the application of engineering tools in the study of biological tissue mechanics.

• Provide the students with an appreciation for the mechanical complexity of biological systems.

Understand the forces and stresses that are applied or developed on parts of the human body, and the outcomes of these loads.

Το άρθρο Biomechanics Ι εμφανίστηκε πρώτα στο MEAD.

Introduction to the following subjects : Programming for Graphic Users Interfaces – GUI (Windows, Linux). Tools for GUI Programming (Widgets). Data Organization (Data Structures and Data Bases). Management of Memory, Disk, Communication (Programming Algorithms). Floating Point Operations (Accuracy, Overflow, Underflow). Stability and Accuracy of Numerical Methods. Programming Subjects & Languages (JAVA, CORBA, UML etc.), Parallel Processing – Multiprocessing (Subject & Programming). Advanced Computational Environments and Systems (OpenMP, MPI, GRID, CUDA, OpenCL, OpenACC etc.). Multiple Cores – Computing with Graphic Cards (Multicore, Manycore, GPU Computing). Supercomputers: Access & Programming (High Performance Computing – HPC). Scientific Applications (Data Representation, Graphics, Information Retrieval).

LEARNING OUTCOMES

The student will complete, refresh and update his/her knowledge, experience and capabilities on subjects that concern the usage and application of computers and advanced computational methods on Mechanical Engineering & Aeronautics. These subjects are fully described in the published course content and are the sequel but there are not covered and not included in the courses content of the relevant  prerequisite courses of the previous years of studies.

The qualifications obtained (knowledge, experience, capabilities) are necessary and useful in the first place for all the following courses that the student must attend in order to complete his/her degree requirements, for the elaboration of his/her diploma work as prospective Mechanical & Aeronautics Engineer. Furthermore the qualifications obtained (knowledge, experience, capabilities) are necessary and useful for the student in order to continue to the next level of studies (Master of Science and/or PhD) or to join the labor market with advanced qualifications.

The learning outcomes of this course correspond to the descriptive indicator 8, according to the European Qualifications Framework.

Το άρθρο Special Topics in Computing εμφανίστηκε πρώτα στο MEAD.

INTRODUCTION: Objectives, Historical

CARTESIAN TENSORS.

STRAIN AND STRESS TENSORS: The continuum model, External loads, The displacement vector, Components of strain, Assumption of small deformation, Proof of the tensorial property of strain, Traction and components of stress, Proof of the tensorial property of stress, Properties of the strain and stress tensors, Components of displacement for rigid body motion, The compatibility equations, The equilibrium equations, Cylindrical coordinates, Strain-displacement relations in cylindrical coordinates, Equilibrium equations in cylindrical coordinates, Compatibility equations in cylindrical coordinates.

STRESS-STRAIN RELATIONS: Uniaxial tension or compression under constant temperature, The torsion test, Effect of temperature, Stress-strain relations for elastic materials subjected to three-dimensional stress state, Stress-strain relations for linear elastic materials subjected to three-dimensional stress state, Stress-strain relations for orthotropic linear elastic materials, Stress-strain relations for isotropic linear elastic materials subjected to three-dimensional stress state.

FORMULATION AND SOLUTION OF BOUNDARY VALUE PROBLEMS: Introduction, Boundary value problems for computing the displacement and stress fields, The principle of Saint-Venant, Methods for finding exact solutions for boundary value problems, Prismatic body subjected to uniaxial tension, Prismatic body subjected to bending, Prismatic body subjected to torsion.

PLAIN STRAIN AND PLAIN STRESS PROBLEMS: Plane strain, Formulation of problems using the Airy stress function, Prismatic bodies in plain strain condition, The equations of plain strain condition in cylindrical coordinates, Plain stress, Plates in plain stress condition, Two-dimensional plain stress condition, Prismatic bodies in axisymmetric plain strain or plain stress conditions.

LEARNING OUTCOMES 

To give the students the basics of Theory of Elasticity which are required for the understanding of the elastic behavior of isotropic materials. The knowledge gained is used in many courses of the Mechanical & Aeronautical Engineer such as the Introduction to the Finite Element Method, Introduction to Mechanics of Composite Materials, Advanced Strength of Materials, Fracture Mechanics & Structural Integrity, Mechanics of Composite Materials, etc.

Το άρθρο Theory of Elasticity εμφανίστηκε πρώτα στο MEAD.