Job advertisements

Student Assistant

The Professorship of Wood Technology of the Technical University of Munich is currently looking for a student assistant.

Field of duty:

  • Assistance in preparing experimental tests (e.g. knot detection in boards, vibration measurement, preparation of test specimens, modification of test stands)
  • Assistance in conducting destructive tests

Necessary knowledge / qualities:

  • Certificate of enrolment
  • German fluent written and spoken
  • Reliable and independent way of working
  • Manual skills preferable

Job of operation:

Holzforschung München der Technischen Universität München,

Winzererstr. 45, 80797 München

Working hours: 8-10 hours per week

Assignment in agreement depending on present tasks

Application with CV to:

Monika Zeilhofer

zeilhofer@hfm.tum.de

Student Assistant

As of now, the Chair of Wood Science of the Technical University of Munich looks for a student assistant.

During the job, it will be your task to establish and maintain an internal project database, containing research outcomes and scientific literature. On the base of an open source program, the findings and the literature should be structured and connected by tags.

 Field of duty:

  • To establish and maintain the database
  • To prepare a tag-register
  • To prepare an instruction for the utilization and maintenance of the database

Necessary knowledge and properties:

  • Good English skills orally and in writing
  • Knowledge in database programming / software engineering (optional)
  • Reliability
  • Independent working

Workplace:

Wood Research Munich of the Technical University of Munich

Working time 8 to 10 hours per week, work time is flexible upon consultation.

Application & Contact:

M.Sc. Laura Lautenschläger

Winzererstraße 45, 80797 Munich

Phone: 089 2180 6439

E-Mail: lautenschlaeger@hfm.tum.de

Application by mail with your CV.


Student Assistants

The Holzforschung München of the Technical University of Munich regularly seeks  new student assistants for participation in research projects. If you are interested or have any questions, please contact Tania Simon.

Graduation work

Research Area Chemistry of Raw Material and Products

[BSc /MSc] The contact angle measurement of adhesives on the native and extract-free wood surfaces Background:

 Background::

Bonding is a key technology in many areas, and reliable wood-adhesive bonds are crucial for future wood-biomass utilization. For a good quality of the bonding, the adhesives need to form a contact with the wood surface at the molecular level. This process is highly related to the surface energies of the wood and adhesives.

Although extractable wood components (extracts) represent a minor fraction of wood, the polar/non-polar components within their chemistry might have an influence on the wood surface energy therefore also on the bonding quality.

The contact angle (Ɵo) measurement is a widely used technique for evaluating the surface energy by means of the shape of a drop placed on a surface (Fig.1a). More specifically, the concept of the contact angle gives a definition to the notion of wettability on the surface (Fig.1b).

Topic:

In the scope of this study, the wettability properties of both water and adhesives (e.g. MUF, PUR etc.) will be measured on the unmodified wood surfaces from different species (e.g. spruce, Douglas fir, beech, chestnut etc.) but also extract free wood surfaces to which several extraction procedures are applied (e.g. hot/cold water, organic solvent extraction). Moreover, how extracts vary between different species will be investigated.

Reference

[1] Relation of the Equilibrium Contact Angle to Liquid and Solid Constitution. W. A. ZISMAN. U. S. Naval Research Laboratory. Washington 25

Contact:

Dr. Merve Özparpucu 

Dr. Elisabeth Windeisen-Holzhauser

Research Area Resource Flow Management

Graduation works

We are constantly able to offer interesting project topics for BSc and MSc theses with a focus on material flow analysis, life cycle assessment, sustainability assessment concerning renewable resources, especially wood/wood products. Please approach us with any questions you might have!

Contact:

Prof. Dr. Gabriele Weber-Blaschke

[M.Sc.] Carbon sequestration and temporal storage in life cycle assessment on the example cascade use of wood

The working group Material Flow Management of the Chair of Wood Science is looking for an interested student to evaluate different life cycle assessment methodologies for taking into account the sequestration and temporary storage of biogenic carbon. The thesis is part of a national research project on the cascade use of wood. It thus offers the possibility of a practical implementation of different life cycle assessment methods.

Goals and tasks

  • Research on currently discussed assessment methods to consider carbon sequestration and temporary storage in life cycle assessment
  • Description and critical comparison of the different assessment methods
  • Comparison of two chosen assessment methods for practical application using a self-chosen example system in the field of cascade use of wood
  • Software-supported modelling of the life cycle system
  • Comparison and critical discussion of the results
  • Derivation of recommendations regarding the selection of the assessment methodology for carbon sequestration and temporary storage, taking into account the specifics of the cascade use of wood

The thesis will be conducted at the Holzforschung München, Winzererstr. 45 in Munich. A working area will be provided.

If you are interested, please contact Pia Szichta, (0)89 2180 6431.

Material Science and Engineering

Wood Technology

[BSc/MSc] Tension strength of finger jointed low quality beech lamellas

Lamellas for glued laminated timber production are finger jointed to increase, on the one hand, the lamella quality and, on the other hand, the lamella length. The requirements for the strength of finger jointed beech lamellas are regulated in the general technical approval Z-9.1-679:2014. Also the sorting criteria of the lamellas are given there. A research project at our chair showed that lamellas that are currently restricted according to the grading rules can be combined with lamellas of higher quality in a glulam member to achieve high tension and compression strength. For a practical applicability knowledge about strength and stiffness of the finger joints in low quality lamellas has to be gained. This work should examine the strength and stiffness of finger joints in low quality beech lamellas.

Goals and tasks

  • Familiarisation with the relevant literature
  • Preparation and execution of the tensile tests under supervision
  • Evaluation of the test results

The results of the work are to be presented in an approx. 30-minute lecture at the Wood Science Seminar of the Wood Research Munich.

Date: from summer 2020

Supervision & Contact: Monika Zeilhofer

[BSc/MSc] Correlation between tension and bending strength of finger joints in beech lamellas from different strength classes

Lamellas are sorted and graded according to their tension strength. Finger joints of lamellas for glued laminated timber production also have to fulfil criteria regarding the tension strength. The quality of finger jointed lamellas for glulam is often examined according to DIN EN 14080 by means of a bending test. In a glulam member, the lamellas are mainly stressed in compression or tension. It is necessary to know the correlation between tension and bending strength of finger jointed lamellas.

A research project on beech lamellas showed different rations of tension to bending strength of the finger jointed beech lamellas for different strength classes. The knowledge about the ratio between tension and bending strength of finger jointed beech lamellas has to be increased, which is the goal of this thesis.

Goals and tasks

  • Familiarisation with the relevant literature
  • Preparation and execution of tensile and bending tests
  • Evaluation of the test results

The results of the work are to be presented in an approx. 30-minute lecture at the Wood Science Seminar of the Wood Research Munich.

Date: from autumn 2020

Supervision & Contact: Monika Zeilhofer

[BSc/MSc] Tension and compression strength of beech glued laminated timber with stochastic member setup

The load carrying capacity of beech glued laminated timber is regulated in the general technical approval Z-9.1-679:2014. The strength and stiffness of a member depends on the sorting class of the employed lamellas. A research project at Holzforschung München showed that beech glulam members partially manufactured from low quality beech lamellas achieve high compression and tension strength. The members in the research project were built up from lamellas specifically arranged by their dynamic Modulus of Elasticity. In practical application, the lamellas are sorted into strength classes and glulam members are constructed with randomly chosen lamellas from the sorting class. Tension and compression tests should be performed in this work in order to transform the results of the scientifically built up beech glulam members to stochastically arranged beech glulam members.

Goals and tasks

  • Familiarisation with the relevant literature
  • Performance of compression and tensile tests on beech glulam beams
  • Evaluation of the test results

The results of the work are to be presented in an approx. 30-minute lecture at the Wood Science Seminar of the Wood Research Munich.

Date: from winter 2020

Supervision & Contact: Monika Zeilhofer

Wood Bioprocesses

Internship