design mechanics and materials 2021

Focus Specialisationin Design, Mechanicsand MaterialsProf. Kristina Shea + Colleagues

Outline

• Introduction and Motivation• Lectures

• Bachelor Theses and Research

• Beyond Your Bachelor Degree

18.05.21Bachelor Focus Design, Mechanics and Materials 2

18.05.21 3Master of Science in Design, Mechanics and Materials

18.05.21Master of Science in ... 4

18.05.21Master of Science in ... 5

Diverse Industry Domains: Beyond the Traditional!

18.05.21 7Bachelor Focus Design, Mechanics and Materials

Image credit: Audi Image credit: robotics & automation news

Mechanical Systems are Highly Interdisciplinary

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Engineering Design

Mechanics

ComputingNew Technologies

Materials

Bachelor Focus Design, Mechanics and Materials

Image credit: Audi

Mechanical Systems: Design, Mechanics and Materials

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The design, analysis, simulation, optimization and evaluation of modern mechanical and mechatronic systems is one of the main tasks of a

mechanical engineer.

Analysis Experimental Methods

Function

Performance

Reliability & Quality Environmental Aspects

Costs


Engineering Design

Materials & Manufacturing

Image credit: Audi

The Team


• K. Shea, J. Dual, P. Ermanni, D. Kochmann, L. De Lorenzis, E. Mazza, M. Meboldt, D. Mohr, E. Tilley, P. Tiso

Outline

• Introduction and Motivation

• Lectures• Bachelor Theses and Research



Bachelor Focus


Computational Methods

LabsApplication in Research and Industry Projects Bachelor Thesis

Artificial Intelligence

Materials and Processes

Theoretical Methods

Product DevelopmentEngineering Design Experimental Methods

Methods and ToolsComputational Methods, Artificial Intelligence, Theoretical Methods, Product

Development and Engineering Design, Materials and Processes, Experimental Methods

Lecture Overview: You select five lectures freelyCourses in Fall Semester


Number Title ECTS Lecturers

Engineering Design151-3209-00L Engineering Design Optimization 4 K. Shea, T. Stankovic151-3213-00L Integrative Ski Building Workshop 4 K. Shea

Mechanics151-0364-00L Lightweight Structures Laboratory 4 M. Zogg, P. Ermanni151-3207-00L Lightweight 4 P. Ermanni151-0509-00L Microscale Acoustofluidics 4 J. Dual151-0524-00L Continuum Mechanics I 4 E. Mazza

Materials327-0501-00L Metals I 3 R. Spolenak327-1204-00L Materials at Work I 4 R. Spolenak, E. Dufresne, R. Koopmans

Lecture Overview: You select five lectures freelyCourses in Spring Semester


Number Title ECTS Lecturers

Engineering Design

151-3202-00L Product Development and Engineering Design 4 K. Shea, T. Stankovic

151-0304-00L Engineering Design II 4 K. Wegener

151-0306-00L Visualization, Simulation and Interaction - Virtual Reality I 4 A. Kunz

151-0332-00L Interdisciplinary Product Development: Definition, Realisation and Validation of Product Concepts 4 M. Schütz

151-3204-00L Coaching Innovation Projects 2 R. P. Haas

Mechanics

151-0515-00L Continuum Mechanics 2 4 E. Mazza, R. Hopf

151-0516-00L Non-smooth Dynamics 5 C. Glocker

151-0518-00L Computational Mechanics I: Intro to FEA 4 D. Kochmann

151-0540-00L Experimental Mechanics 4 J. Dual, T. Brack

151-0552-00L Fracture Mechanics 4 L. De Lorenzis

151-0534-00L Advanced Dynamics 4 P. Tiso

151-0544-00L Metal Additive Manufacturing - Mechanical Integrity and Numerical Analysis 4

Materials

151-0324-00L Engineering Design with Polymers and Polymer Composites 4 G. P. Terrasi

327-3002-00L Materials for Mechanical Engineers 4 R. Spolenak, A. R. Studart, R. Style

327-0612-00L Metalls II 3 R. Spolenak, M. Schinhammer, A. Wahlen

Outline


• Lectures

• Bachelor Theses and Research• Beyond Your Bachelor Degree


Please see the websites of each professor for current available studentprojects and theses!

• Prof. Kristina Shea, Engineering Design and Computing Laboratory https://edac.ethz.ch/

• Prof. Jürg Dual, Lab for Mechanics and Experimental Dynamics https://expdyn.ethz.ch/

• Prof. Paolo Ermanni, Laboratory of Composite Materials and Adaptive Structures https://structures.ethz.ch/

• Prof. Dennis Kochmann, Mechanics and Materials Laboratory https://mm.ethz.ch/

• Prof. Laura De Lorenzis, Computational Mechanics Group https://compmech.ethz.ch/

• Prof. Eduoardo Mazza, Experimental Continuum Mechanics https://ecm.ethz.ch/

• Prof. Mirko Meboldt, pd|z Product Development Group Zurich https://pdz.ethz.ch/

• Prof. Dirk Mohr, Computational Modelling of Materials in Manufacturing https://mohr.ethz.ch/

• Prof. Elizabeth Tilley, Global Health Engineering

• Dr. Paolo Tiso, Nonlinear Dynamical Systems Group http://www.georgehaller.com/


https://edac.ethz.ch/

https://expdyn.ethz.ch/

https://structures.ethz.ch/

https://mm.ethz.ch/

https://compmech.ethz.ch/

https://ecm.ethz.ch/

https://pdz.ethz.ch/

https://mohr.ethz.ch/

http://www.georgehaller.com/

Prof. Elizabeth TilleyGlobal Health Engineering

• Billions of people use on-site sanitation(pit latrines) that fill up and need to beemptied

• Tanker trucks with high-powered vacuums can not reach most households (density, roads)

• Entrepeneurs resort to buckets/shovels which areunsafe: exposure, collapse

• Urgent need for pit-emptying technologies thatare:- Low-cost: affordable to businesses- Locally-produced: fixed and replaced- Easy to handle: small spaces, light- Trash resistent: no clogging

• Work with small businesses, NGOs: improvehuman and environmental health


Prof. Laura De LorenzisComputational Mechanics GroupBachelor Thesis: Automated Discovery of Material Models


Image Data Machine Learning Material Modelsfor Simulation

Dr. Paolo TisoNonlinear Dynamical Systems GroupExplicit Navier–Stokes solutions and their analysis via local vortex criteria and tools from dynamical systems

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[1] L. Hillegaart. Analysis of nonlinear dynamical systems applied on explicit polynomial solutions to the unsteady planar Navier-Stokes equation (BScThesis). 2020

u(x, t) =

✓sin(4t) cos(4t) + 2

cos(4t)� 2 � sin(4t)

◆x+ ↵(t)

✓x4 � 6x2y2 + y4

�4x3y + 4xy3

◆

<latexit sha1_base64="MajOvDbcioAEKS3KWSfX9viqvow=">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</latexit>

A quartic polynomial solution to the Navier-Stokes equation has the following form [1]:

The intersecting stable and unstable manifolds of the fixed point of the Poincaré map show a very complex particle motion in stark contrast to the vortical motion suggested by both the instantaneous streamlines and the Okubo-Weiss criterion [1].


Prof. Dennis KochmannMechanics and Materials LaboratoryMultiscale topology optimization of architected metamaterials for implants

• Over 13% of all hip prostheses require complicated repeated surgery becauseof bone loss around the implant due to a stiffness mismatch and lacking biocompatibility.

• Architected metamaterials together with topology optimization allow us create superior implants with tailored properties.

• This project develops a patient-specific implantwith optimized properties by computational design, prototyping by 3D printing.

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[1] Ji Seon Park et al. Focal osteolysis in total hip replacement: CT findings. Skeletal Radiology, 33(11):632–640, 2004[2] Sajad Arabnejad et al. Fully porous 3D printed titanium femoral stem to reduce stress-shielding following total hip arthroplasty. Journal of Orthopaedic Research, 35:1774–1783, 2017

[1] [2]


Prof. Kristina SheaEngineering Design and Computing LaboratoryDesign of an untethered pneumatic system for soft robots

• What are the design requirements for an untethered, pneumatic soft robot: size, weight, pressure? Literature review.

• Research, identify and assemble keymechatronics components

• Design and build electronic circuit boards

• Design housing using CAD and 3D printing

• Test system for mechanics, electronics, andapplication to soft robots

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Source: A Resilient, Untethered Soft Robot, Tolley et al., 2014


Prof. Edoardo MazzaExperimental Continuum Mechanics

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Thermomechanical simulation for residual stress prediction in SLM partsProject tasks:• Literature review on “inherent strain method”

for additive manufacturing• Application of Ansys or Abaqus for

thermomechanical simulations• Sensitivity analysis of distortion and stresses

to process parameters

Layer-wise inherent strain activation of a cantilever

Stress components along a given path

Development of suction protocols for skin biomechanics characterization

Project tasks:• Literature review on histology of skin layers• FE simulation: protocol optimization for

characterization of specific skin layers • Verification on elastomer substrates (in-vitro

experiments)• Validation with in-vivo skin measurements


Prof. Jürg DualLab for Mechanics and Experimental Dynamics Manipulation of living organisms by acoustic fields: C. Elegans worms for Alzheimer research

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1 m

mstanding wave, λ/2

flow

flow

outlet 1.1

outlet 1.2outlet 2

outlet 1.1

outlet 1.2

outlet 2acousticforces

xy

700 µm

acousticforces

t = 90 ms

t = 0 ms

Proof of principle C. elegans sorting by switching betweenfirst/second harmonics at 970/2165 kHz (no anaesthetization)

L3 C. elegans 350 µm

Freq. 970/2165kHz

U 62/51 Vpp

USswitching

4s

Flow speed

1.6 mm/s

Slow mo Real time

w = 700 µm


Outline


• Lectures

• Bachelor Theses and Research


18.05.21Master of Science in Design, Mechanics and Materials 26

Relevant Industries

• Automotive

• Aerospace

• Space

• Rail

• Robotics

• Manufacturing

• Additive Manufacturing

• Product Development and Consumer Products

• Buildings and Civil Structures

• Energy

• Sports Industries

• Biomedical and Medical Technology

• Many more!18.05.21 27Bachelor Focus Design, Mechanics and Materials

Image credit: Audi

Relevant Master Studies

• Mechanical Engineering

• Micro and Nanosystems

• Robotics, Systems and Control

• Biomedical Engineering

• Energy Science and Technology

• Integrated Building Systems

• …

Bachelor Focus Design, Mechanics and Materials 18.05.21 28

Any Questions?


design mechanics and materials 2021

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