Wednesday, October 20, 2010

Scotland’s big opportunity in microscopic wood research


In October the Forest Products Research Institute of Edinburgh Napier University gathered together forty researchers from Scotland, and further afield, to discuss the potential for future research into the behaviour of wood at microscopic scale for improved performance of wood products.

The keynote speaker at the workshop was Dr Karin Hofstetter of the Institute for Mechanics of Materials and Structures at Vienna University of Technology. Karin, who also heads the COST Action 'Experimental and computational micro-characterization techniques in wood mechanics' said that "Research in the field of wood and forest sciences is urgently needed in order to maintain and enhance the competitiveness of the timber industries, and to develop higher added value products."

She was impressed by the work presented by the other speakers and went on to say "Scotland is presented with an almost unique opportunity in having available leading scientists, in practically all relevant fields, so close geographically. This covers such diverse disciplines as chemistry, physics, computer science, and engineering. Combining their competences in a joint research effort has huge potential to considerably advance the state-of-knowledge for the benefit of Scottish timber industries."

The workshop, funded by the National Telford Institute and co-hosted with the School of Engineering at the University of Glasgow, was run to gauge the level of interest in this field among researchers who are currently working with other materials, but have knowledge, techniques and equipment that could also be applied to wood.

Wood is a varied and complicated hydroscopic natural composite material and the performance of wood and wood-based products is strongly influenced by behaviour at ring, cell, cell wall and molecular levels. It is necessary to be able to understand and model wood mechanics and micromechanics in order to produce wood products with improved performance, enhance quality control, and design more adventurous, and more efficient, structures.

Although the timber industries are a key sector for Scotland, there are relatively few researchers currently looking at wood properties. However, there is a great deal of expertise in Scotland in related fields, and in techniques and approaches currently applied so solve other problems, which can potentially be applied to wood. We will be taking this promising opportunity and meeting again soon to develop ideas for collaborative research projects – also including interested researchers from the rest of the UK. There is a Yahoo group mailing list for interested researchers.




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Wednesday, March 3, 2010

SIRT and the BBC


Last year I was part of the Ask Yan team for the BBC TV science series "Bang Goes The Theory". I answered quite a lot of the questions in my spare time - almost as many as Yan! ...including one about why cork trees make cork.

The second series starts on March 15th...so if you have any tree or wood related questions you want to reach a wide audience do please send them in to Yan.

Tuesday, March 2, 2010

Keeping in touch with standards development


The new version of EN338 will contain a big change to the shear strengths of the timber grades. Related to this there have been changes afoot in the testing standard EN408 which includes an equation to modify global MoE to correct for shear stiffness G...a correction that is already taken care of (by a different equation) in EN384! Some of our thoughts on that topic are covered here.

Keeping abreast of changes on codes and standards isn't easy, but the British Standards Institute has just launched a new service that might help people do just that. As well as the subscription based BSIonline (which has live standards and drafts out for comment) there will be:

http://standardsdevelopment.bsigroup.com - Aiming to provide a more user-friendly way for people to access information relating to standards in development.

And http://standardsproposals.bsigroup.com - a public access area for proposals for new standards and revisions of existing ones.

Don't also forget that we now sit on the UK timber grading committee and BSI committee B/518 (structural timber) so if you have any concerns relating to standards about timber grading you can speak to us.

Wednesday, February 24, 2010

COST E53 conference registration open


Registration is now open for the conference. You can register online here. You can view the programme and other details here. By way of a reminder, this is what the conference is about...

The Centre for Timber Engineering at Edinburgh Napier University will be hosting the final conference of COST Action E53 this spring. The conference, which is to he held at Our Dynamic Earth in Edinburgh's historic Holyrood area, will be focused on issues of quality control for wood and wood products including:

* Understanding end user requirements for wood and wood products.
* Scanning of stems, logs and boards for characterisation of geometrical and quality properties.
* Wood drying, distortion and determination of moisture content.
* Assessment of strength, stiffness and visual appearance of timber and wood products.
* Future trends in technology, wood characteristics, and end user requirements.

The full conference runs from the 4-7th May 2010, but there will be two days of particular interest to industry. These days are the 'industry focussed day' (5th May 2010) and a workshop by the European Wood Drying Group (4th May 2010). The aim is to disseminate the results of the four years of pan European research cooperation in this COST Action - and to get feedback and discussion from producers and end users.

Thursday, November 12, 2009

Assessing Scots pine timber quality


Recently I gave a presentation on the mechanical properties of Scots pine at the one-day seminar on Scots pine timber quality in north Scotland that was hosted by Forestry Commission, Scottish Enterprise and Highlands & Islands Enterprise. All the presentations from this event are available by clicking here. In addition, I help to co-author a Research Note with Elspeth Macdonald, Tom Connolly and Barry Gardiner from Forest Research which describes the development of methods for assessing the quality of Scots pine timber. An electronic version of this publication (FCRN005) can be downloaded free of charge here.

Monday, November 9, 2009

SIRT at the Botanic Gardens


Wooden spiralJohn Moore, Stefan Lehneke and myself were at Edinburgh's Royal Botanic Gardens last Sunday (the 8th November) giving a free walk-in workshop for children and parents about the science of wood. This included viewing wood under microscopes, converstations about wood species and properties, and a 3D slideshow. We'll be there again (in the new John Hope Visitors' Centre) on Saturday 21st November from 1pm until 4pm.

Friday, October 30, 2009

Wood NDT conference


I attended in the 16th International Nondestructive Testing and Evaluation of Wood Symposium in Beijing this month and presented a paper about the work we have been doing in the UK using acoustic tools to study the variation in wood properties and the potential for resource segregation.

The conference also included presentations on grading and inspection of components, structures and trees and enabled SIRT to create new links with researchers working around the world on topics of interest to us. The next conference in this series will be in Sopron, Hungary 5th-7th September 2011.