Delamination detection in a 90-year-old glulam block with scanning dry point-contact ultrasound

@inproceedings{Neuenschwander2013DelaminationDI,
  title={Delamination detection in a 90-year-old glulam block with scanning dry point-contact ultrasound},
  author={Juerg Neuenschwander and Sergio J. Sanabriaa and Philipp Schuetz and Robert Widmann and M. Vogel},
  year={2013}
}
Glued laminated timber (glulam) is known in timber constructions since more than 100 years. Glulam members can delaminate due to aging and excessive changes of temperature and humidity. This results in significantly reduced load bearing capability of the affected structural members. This contribution focuses on the ultrasonic point-contact inspection of gluing plane delamination as a nondestructive method. Ultrasonic measurements on a section of a 90-year-old roofing glulam member are… CONTINUE READING