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Individual Highlight

Understanding how the organization and interactions of the atoms that compose wood control its mechanical properties

Photo of Snapshot : To expand the uses and efficient utilization of wood, Forest Service researchers strive to learn how manipulate its molecular-scale structure to control its mechanical properties

Principal Investigators(s) :
Jakes, Joseph 
Research Location : Forest Products Laboratory Nanoindentation Lab Worcester Polytechnic Institute
Research Station : Forest Products Laboratory (FPL)
Year : 2017
Highlight ID : 1299

Summary

Wood, like all materials, is composed of atoms. The primary atoms in wood are hydrogen, carbon, and oxygen. It is the organization and interaction of these atoms that control all wood properties like mechanical stiffness and strength. Compared to other engineered materials, such as metals and ceramics, relatively little is understood about how the molecular structure of wood can be modified to control its mechanical properties. A more complete understanding could accelerate efforts to modify wood to be stronger or weaker for specific end uses. Stronger wood, for example, would be desirable for building materials, and weaker wood would be advantageous for biorenergy feedstock because it would take less energy to process the wood into the small chips used in biorenergy processes. Recently, a researcher at the Forest Service’s Forest Products Laboratory in Madison, Wisc.,collaborated with Worcester Polytechnic Institute researchers to combine computer simulation and experimental nanoindentation results to better understand how molecular structure controls wood mechanical properties. New insights gave researchers new information about how the mechanical properties of wood in different orientations are being controlled by its molecular-scale structures. Future work will further identify how the molecular scale structures of wood need to be modified to modify properties in a desired way.

Forest Service Partners

External Partners

 
  • Worcester Polytechnic Institute