D.Sc Harri Eskelinen

Introduction: BK50A2700 Selection Criteria of Structural

Materials

Briefly about the lecturer…• Harri Eskelinen, GSM +358 40 1979 280, email:harri.eskelinen@lut.fi• Senior Research Scientist at LUT since 1999, before that lecturer and

assistant since 1985. • Since 2011 nominated as an adjunct professor.• Since 2014 Head of the Master Degree Programme in Mechanical

Engineering• D.Sc (Mech.eng.) 1999• Main research topics:

– DFMA– MW-mechanics– Green technology in material selection– Distance learning

• Supervising following courses:– Technical Drawing and 3D-modelling– Material Science– Engineering Design and Mechanisms– Machine Element Design– Research Methods and Methodologies

Learning outcomesAfter having passed this course the student is able to:

apply and develop systematic and analytical means and tools of systematic material selection approaches into solving cross-technological material´s selection tasks

define and analyze the properties, the strengths, the weaknesses and the application areas of the main groups of constructional materials for different types of applications

justify and build generalized models to take into a count both the functionality and the manufacturability aspects in addition to the total costs and environmental aspects of the product in solving the material selection task

evaluate and utilize recent results and documents of material science

derive analytical models based on the principles of LCC’s, LCA’s and MIPS-factors in material selection.

Gas turbine construction

Content During the course the student will become familiar with the properties and

application areas of different constructional materials. The recent scientific results dealing with material science and technology will be

discussed. Aspects of selecting and comparing different materials (metals and their alloys,

polymers, ceramics, composites, wood materials, adaptive materials, nanomaterials) are discussed from the viewpoints of functionality, manufacturing aspects, costs and environmental aspects of the product.

Future trends in materials science are discussed briefly. Innovative solutions of the material selection tasks will be discussed.

Environmental aspects of material selection from the viewpoint of LCC and LCA and the basics of MIPS calculations.

Principles to formulate and solve the materials solution tasks based on analytical and systematic approaches and means to develop models to support the selection process staring from the product’s requirement list will be discussed in details.

Multi-language teaching environment will be utilized during the project work.

Wind power applications

Content of the lessons Lesson 1 Introduction Lesson 2 Repetition 1: Material selection based on strength properties

Material selection based on manufacturability

Reliability based material selection

Repetition 2: Material selection based on corrosion resistance

Material selection based on wear resistance Lesson 3 Systematic material selection process Lesson 4 Selection of metallic materials Lesson 5 Selection of polymers Lesson 6 Selection of ceramics Lesson 7 Selection of composites Lesson 8 Selection of adaptive materials Lesson 9 Selection of nanomaterials

Material costs Lesson 10 Green technology and sustainability aspects in material

selection Week 48-49 Seminar presentations

Week Lectures: On Fridays at 10.15-12.00 in room 1303

Exercises: On Mondays at 10.15-12.00 in room 4509 (1st

period) / 1217 (2nd period) OR

On Tuesdays at 9.15-11.00 in room 1303

Seminar

37 (8.9.- 14.9.2014)

Introduction Guidelines for teamwork and seminar

No exercises Selection of the topic

38 (15.9.- 21.9.2014)

Lesson 1: Repetition (strength, manufacturability) Lesson 2: Repetition (corrosion, wear)

Guidelines for the seminar work

Guidelines for literature research

39 (22.9.- 28.9.2014)

Lesson 3: Systematic material selection process Exercise 1 Repetition exercises (material properties and strength) Exercise 2: Repetition exercises (wear, corrosion, manufacturability)

40 (29.9.- 5.10.2014)

Lesson 4: Metallic materials Exercise 3: Elaboration of the requirements profile and the materials’ property profile

41 (6.10.- 12.10.2014)

Lesson 5: Polymers Exercise 4: Applications of metallic materials

42 (13.10.-19.10.2014)

Lesson 6: Ceramics Exercise 5: Applications of polymers

(43) (20.10.- 26.10.2014)

Exam week (no lessons nor exercises) Exam week (no lessons nor exercises)

44 (27.10.- 2.11.2014)

Lesson 7: Composites Exercise 6: Applications of ceramics First draft of the seminar work

45 (3.11.- 9.11.2014)

Lesson 8: Adaptive materials

Exercise 7: Applications of composites English/German abstract

46 (10.11.- 16.11.2014)

Lesson 9: Nanomaterials Exercise 8: Applications of adaptive materials

47 (17.11.- 23.11.2014)

Lesson 10: Material costs and green technology and sustainability aspects in material selection

Exercise 9: Applications of nanomaterials

Review process of the final seminar work

48 (24.11.- 30.11.2014)

Seminar presentations Exercise 10: Material costs and recycling of materials

Presentations on Friday 28.11.2014 at 10-12

49 (1.12.- 7.12.2014)

Seminar presentations No exercises (Extra time for presentations if needed) Presentations on Friday 5.12.2014 at 10-12

Estimated workload and modes of study Lectures 24 h Exercises 24h Team work and a limited project work (seminar) 88 h Independent work 20 h

Total workload 156 h 6 ECTS cr

Evaluation 6 ECTS credits Final grade 0-5 Evaluation:

project work (seminar) 70 % exercise 30 %

Study materials Mangohon, P., The Principles of Materials Selection for Engineering Design.

Strong, A. B., Plastics, Materials and Processing.

Kalpakjan, S. & Schmid, S., Manufacturing Engineering and Technology.

For Finnish students: Eskelinen & Karsikas, Vihreän teknologian näkökulmat konstruktiomateriaalien valinnassa, ISBN 978-952-265-457-1.

Lectures and exercises delivered via Noppa