PhD defence by Peter Riddersholm Lauridsen

PhD defence by Peter Riddersholm Lauridsen

Peter will defend his PhD thesis "A Contribution of Methods for Analysis of Laminated Composites and Adhesive Joints". Defence is in hybrid format.

Time

06.07.2021 kl. 13.00 - 17.00

Description

THESIS SUMMARY

This PhD project has focused on structural testing and computational methods for fracture and fatigue problems in laminated composites and adhesive joints. Laminated composites and adhesive joints are extensively used in structures such as wind turbine blades, and the performance of these are pushed to the failure limits in order to obtain stiffer, stronger and lighter blades. These new methods will expand the possibilities in testing and designing modern wind turbine blades, and still ensure structural integrity.

First contribution is an unseen test fixture and method (TP-MMB), which is used for determination of mode mixity fracture resistance in laminated composites and adhesive joints. Second part is a contribution of three Finite Element based approaches for determination of so called Brazier forces or contributing forces, which is a second order effect also referred to as geometric non-linearity.

The aforementioned contributions are designed for analysis of laminated composites and adhesive joints. It can be concluded that both contributions are suitable for the wind turbine industry.

ASSESSMENT COMMITTEE

  • Assoc. Prof. Peter Frigaard (chairperson)
  • Dr.-Ing. Claudio Balzani, Leibniz University Hannover
  • Assoc. Prof. Jan Høgsberg, Technical University of Denmark

PHD SUPERVISOR

  • Assoc. Prof. Anders Schmidt Kristensen, Dept. of Energy Technology, Aalborg University

MODERATOR

  • Prof. John Dalsgaard Sørensen, Dept. of the Built Environment, Aalborg University

GRADUATE PROGRAMME:

Civil Engineering

COPY OF THESIS

For a copy of the thesis, please send an email to inst.build.phd@build.aau.dk 


PROGRAMME

13:00         Welcome by moderator

13:05         Lecture and presentation by Ph.D. student

13:50         Break
During the break, participants can email questions to the moderator, John Dalsgaard Sørensen jdas@build.aau.dk, who will present these questions after the Q&A session with the assessment committee.

14:00         Q&A session with the assessment committee

16:00         End of defence
The assessment committee enters another “room”, evaluates and writes the final assessment.

Approx.
16:45         The assessment committee re-joins the “Defence room”
                   and announces its decision.

17:00         End of event


HOW TO PARTICIPATE

This PhD defence will be carried out in hybrid format, meaning you can join on location or online. 

Location:
Aalborg University Esbjerg, Auditorium c1.119, Niels Bohrs Vej 8, 6700 Esbjerg

Online:  
https://aaudk.zoom.us/j/62585401689  
Meeting ID: 625 8540 1689  
Passcode: 462202

Note

Registration required for both participation formats at inst.build.phd@build.aau.dk
Sign-up deadline: 5 July 2021

See invitation in pdf format

Host

Department of the Built Environment, Aalborg University

Registration Deadline

05.07.2021 kl. 10.00

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