Software-supported evaluation of the dimensional
stability of veneer plywood materials

The Chair of Wood Technology and Fiber Materials Technology, including the Paper Technology working group, located at the Institute for Natural Materials Technology at the Technical University of Dresden, conducts research in the field of material development and processing. The focus of their research and development is on materials based on lignocellulose as well as other natural fibers.
A key focus of the research and development work of the Solid Wood and Veneer Research Group is the characterization of various properties of wood, veneer, and veneer materials, taking into account moisture and directional dependencies. Other focal points of the research group include the enhancement of wood for application-specific property modifications and the development of materials through structural enhancements.

For the project, the initial phase at TUD will focus on developing project-specific requirements to clearly define the target objectives to be achieved. The know-how acquired in various research projects, particularly the knowledge in determining relevant parameters for wood, veneers, and layered materials, will be incorporated into the project work and will form a key part of the tasks at TU Dresden. Additionally, the characterization of the materials used is among the tasks of TUD.

The research group of the Structural Mechanics Laboratory (LFS) is part of the Faculty of Mechanical Engineering at Schmalkalden University of Applied Sciences. This has existed for more than 20 years and deals with the validation and mathematical description of physical properties of the renewable raw material wood.
In addition to basic research on material mechanics, this also includes the generation of approaches for innovative functional integration in the form of numerous research projects. Based on the knowledge gained, numerous scientific papers such as specialist articles, conference contributions or dissertations have been published in recent years and thus a significant increase in knowledge of the international state of the art has been achieved.

As part of the "FurForS" research project, the Schmalkalden University of Applied Sciences is working on the following topics:

• scientific supervision and management of the project
• Test planning including evaluation of process and material parameters
• Creation of simulation models for the theoretical investigation of possible component geometries
• Derivation of material properties as well as material characteristics with regard to the wood-based material veneer
• Breakdown and preparation of all results for presentation and publication purposes

Brief portrait

Publications

Kreutzfeldt GmbH & Co. KG, headquartered in Schleswig-Holstein, has been producing molded wood products for over 150 years.
This wealth of experience in handling veneers, paired with modern manufacturing technologies, is the basis for the production of high-quality molded wood parts. Many well-known manufacturers rely on the molded wood specialists from Kreutzfeldt to implement their designs. As a result, numerous design classics were created. Exact knowledge of the behavior of the veneers during compression molding allows us to find realizable solutions even for the most demanding customer designs.

As part of the research cooperation, Kreutzfeldt is working on three main tasks:

• The development of a process technology for the hygric modification of veneers.
• The construction of molded wood parts using hygric modified veneers, their production, testing and parameter variations.
• The construction of functional models and prototypes.

At the interface between engineering and design, GbR LieDesign accompanies your customers and partners in the development of new products. From the first sketch of ideas to the market launch, product aesthetics, user-friendliness, material efficiency and durability are the maxims.
LieDesign brings its design and engineering skills to the research cooperation in a leading role in the product development processes. Accompanying the progress of the project, test geometries made of laminated wood are developed taking into account the research results obtained. The resulting functional models define the manufacturing limits and the design options for real components. Based on this, LieDesign develops complex design concepts for products made of laminated wood, especially taking into account the knowledge gained with regard to deformation limits and dimensional stability. The result of this is the exemplary development and design of technologically optimized components and their integration into prototypes of complex products.

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