| Subject name (in Hungarian, in English) | Composites technology | |||
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Composites technology
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| Neptun code | BMEGEPTAGE1 | |||
| Type | study unit with contact hours | |||
| Course types and number of hours (weekly / semester) | course type: | lecture (theory) | exercise | laboratory excercise |
| number of hours (weekly): | 2 | 0 | 1 | |
| nature (connected / stand-alone): | - | - | coupled | |
| Type of assessments (quality evaluation) | exam | |||
| ECTS | 4 | |||
| Subject coordinator | name: | Dr. Czél Gergely | ||
| post: | research associate | |||
| contact: | czel@pt.bme.hu | |||
| Host organization | Department of Polymer Engineering | |||
| http://www.pt.bme.hu | ||||
| Course homepage | http://www.pt.bme.hu/tantargy.php?id=89&l=a | |||
| Course language | english | |||
| Primary curriculum type | mandatory | |||
| Direct prerequisites | Strong prerequisite | BMEGEPTBG01 | ||
| Weak prerequisite | ||||
| Parallel prerequisite | ||||
| Milestone prerequisite | at least obtained 0 ECTS | |||
| Excluding condition | BMEGEPTAGA3, BMEGEPTBG03, BMEGEPTMG34 | |||
Aim
The aim of the course is to acquaint students with the creators, properties and most important production technologies of composite materials. Because composite materials have a significantly more complex structure and material behavior than conventional structural materials, the second half of the lecture series deals specifically with the basics of composite mechanics. The concept of the layer order and the method of calculating the deformation and stress response of the composites to the tensile and bending stresses are presented through simple examples.
Learning outcomes
Competences that can be acquired by completing the course
Knowledge
He is aware of the definition of polymer composites and their basic structure. Understands the function of reinforcing material and matrix material in polymer composite materials. It covers the most important applications of polymer composites. He knows the three most important matrix materials and two most important reinforcing materials of polymer composites. He knows in detail the nine most significant composite manufacturing technologies. He is aware of the typical damage and destruction methods and mechanical testing methods of composites. It systematizes the four most important relevant types of material behavior. Knows the mixing rules for estimating the properties of composite materials. Understands the basic types and design guidelines of composite layer orders. He is aware of the mechanical calculations of the tensile and bending loads of composite sheets.
Ability
It distinguishes between composites and other structural materials. It distinguishes between the construction of composites and other structural materials. It is able to decide whether a given product should be made of a composite. Selects the matrix and reinforcing materials that can be used for a given product. Selects the technologies suitable for the production of the given product. It separates the failure modes of composites and conventional structural materials. It is able to decide which type of mechanical behavior a given material belongs to. Apply mixture rules to estimate the properties of composite materials. It can perform scaling by manual calculation for simple load cases. Makes a suitable layer order for a given application.
Attitude
He constantly monitors his work, results and conclusions. It expands your knowledge of composite processing technologies through continuous acquisition of knowledge. Open to the use of information technology tools. Develops your ability to provide accurate and error-free problem solving, engineering precision, and accuracy. It follows new manufacturing technologies, sizing, design and mechanical testing methods in the field of composite materials.
Independence and responsibility
Collaborates with the instructor and fellow students to expand knowledge. Accepts well-founded professional and other critical remarks. Performs certain tasks without outside help. With his knowledge, he makes a responsible, well-founded decision based on his analyzes. He is responsible for the manufacturing technology and design suggestions he provides.
Teaching methodology
The teaching of the subject takes place in the framework of a lecture. The lectures basically introduce students to the information defined by the knowledge and ability competence elements using the technique of frontal education. Some of the lectures are seminar-type, where the semester's homework is described, and I provide practical guidance on how to solve it. In order to make the presentations more illustrative, the described composite manufacturing technologies are presented with the help of videos also available on the Internet. During the completion of the course, students perform a group task, during which a composite sheet with a given property is designed, manufactured and subjected to a tensile test. The aim of the group task is to apply the knowledge learned in the lectures in practice and to develop the skills of working in a team.
Support materials
Textbook
Gay D, Hoa S. W., Tsai S. W.: Composite materials: Design and applications. CRC Press. 2003. Boca Raton. ISBN 1-58716-084-6
Kollár L. P., Springer G. S.: Mechanics of composite structures. Cambridge University Press. 2003. Cambridge. ISBN 0-521-80165-6
Lecture notes
Online material
http://www.pt.bme.hu/tantargy.php?id=89&l=a
Validity of the course description
| Start of validity: | 2021. September 1. |
| End of validity: | 2027. July 15. |
General rules
Learning outcomes are assessed through a partial performance assessment and exam. Partial performance assessment is the written examination of the knowledge and ability type competence elements of the subject in a way that requires group work. The exam consists of written and oral parts, covering the assessment of all types of knowledge and abilities acquired during the semester. Both parts of the exam will be held on the same day, and the results will be announced on the same day.
Assessment methods
Detailed description of mid-term assessments
| Mid-term assessment No. 1 | ||
| Type: | formative assessment, project-based, complex | |
| Number: | 1 | |
| Purpose, description: | Students are given a group task, the aim of which is to design a composite sheet suitable for a given load, starting from a given selection of materials. The designed sheets must also be prepared by the teams and then subjected to a tensile test. Conclusions should be drawn by comparing the evaluated data with the design results. The solution of the task must be summarized in writing, in the form of minutes, and submitted at the time of the last presentation. 30% of the total points available for the whole semester, ie 30 points, can be awarded for the task. At least 50% of this, ie 15 points, must be achieved. The score can be given for the presentation of the project max. 10 and max. It consists of 20 points. | |
Detailed description of assessments performed during the examination period
Elements of the exam:
| Written partial exam | ||
| Obligation: | mandatory (partial) exam unit, failing the unit results in fail (1) exam result | |
| Description: | The aim of the examination element is to check the acquisition of composite manufacturing technologies and simple calculation methods learned during the semester. The calculation tasks are aimed at determining the deformations and stress states of symmetrical composite plates with simple geometry and load under tensile and bending loads. Highest possible score: 50, successful completion of the exam element requires at least 40%, ie 20 points. | |
| Oral partial exam | ||
| Obligation: | (partial) exam unit chosen by the student, the exam result assessed by other partial exam unit can be changed unrestrictedly | |
| Description: | Exam element for clarifying the questions left open during the written exam and for modifying the formed ticket. Those who pass the written exam may receive a score commensurate with the result of the written exam, depending on their choice for the oral exam. If the student also wants to take an oral exam, his / her result can change in both positive and negative directions. You must achieve at least 40% of the score for this section in the oral test. Highest possible score: 20, at least 8 points are required to complete. | |
| Inclusion of mid-term results | ||
| Obligation: | mandatory (partial) exam unit, failing the unit results in fail (1) exam result | |
| Description: | A maximum of 30 points for a partial performance assessment will be included in the maximum of 100 points available with the exams. ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- -------------------------------. | |
The weight of mid-term assessments in signing or in final grading
| ID | Proportion |
|---|---|
| Mid-term assessment No. 1 | 100 % |
The condition for signing is that the score obtained in the mid-year assessments is at least 50%.
The weight of partial exams in grade
| Type: | Proportion |
|---|---|
| Written partial exam | 50 % |
| Oral partial exam | 20 % |
| Inclusion of mid-term results | 30 % |
Determination of the grade
| Grade | ECTS | The grade expressed in percents |
|---|---|---|
| very good (5) | Excellent [A] | above 91 % |
| very good (5) | Very Good [B] | 86 % - 91 % |
| good (4) | Good [C] | 71 % - 86 % |
| satisfactory (3) | Satisfactory [D] | 60 % - 71 % |
| sufficient (2) | Pass [E] | 41 % - 60 % |
| insufficient (1) | Fail [F] | below 41 % |
The lower limit specified for each grade already belongs to that grade.
Attendance and participation requirements
Must be present at at least 50% (rounded down) of lectures.
At least 100% of laboratory practices (rounded down) must be actively attended.
Special rules for improving, retaken and replacement
The special rules for improving, retaken and replacement shall be interpreted and applied in conjunction with the general rules of the CoS (TVSZ).
| Can the submitted and accepted partial performance assessments be resubmitted until the end of the replacement period in order to achieve better results? | ||
| NO | ||
| Taking into account the previous result in case of improvement, retaken-improvement: | ||
| new result overrides previous result | ||
| The way of retaking or improving a partial assessment for the first time: | ||
| partial assesment(s) in this group cannot be improved or repeated, the final result is assessed in accordance with Code of Studied 122. § (6) | ||
| Completion of unfinished laboratory exercises: | ||
| missed laboratory practices must be performed in the repeat period | ||
| Repetition of laboratory exercises that performed incorrectly (eg.: mistake in documentation) | ||
| incorrectly performed laboratory practice (e.g. Incomplete/incorrect report) can be corrected by repeating the practice | ||
Study work required to complete the course
| Activity | hours / semester |
|---|---|
| participation in contact classes | 42 |
| preparation for laboratory practices | 14 |
| elaboration of a partial assessment task | 30 |
| exam preparation | 28 |
| altogether | 114 |
Validity of subject requirements
| Start of validity: | 2021. September 1. |
| End of validity: | 2027. July 15. |
Primary course
The primary (main) course of the subject in which it is advertised and to which the competencies are related:
Mechanical engineering
Link to the purpose and (special) compensations of the Regulation KKK
This course aims to improve the following competencies defined in the Regulation KKK:
Knowledge
- Student is familiar with the general and specific mathematical, scientific and social principles, rules, contexts and procedures needed to operate in the field of engineering.
- Student has the knowledge of metrology and measurement theory in the field of mechanical engineering.
- Student has the comprehensive knowledge of the main properties and applications of structural materials used in engineering.
Ability
- Student has the ability to apply the general and specific mathematical, scientific and social principles, rules, relationships and procedures acquired in solving problems in the field of engineering.
- Student has the ability to carry out laboratory testing and analysis of materials used in the engineering field, and to evaluate and document test results.
Attitude
- Student strives to plan and carry out tasks to a high professional standard, either independently or in a team.
- Student is open and receptive to learning, embracing and authentically communicating professional, technological development and innovation in engineering.
Independence and responsibility
- Student acts independently and proactively in solving professional problems.
- Student takes responsibility for the sub-processes under student's management.
Prerequisites for completing the course
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Knowledge type competencies
(a set of prior knowledge, the existence of which is not obligatory, but greatly facilitates the successful completion of the subject) |
none |
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Ability type competencies
(a set of prior abilities and skills, the existence of which is not obligatory, but greatly contributes to the successful completion of the subject) |
none |