Effect of Tenon Geometry, Grain Orientation, and Shoulder on Bending Moment Capacity and Moment Rotation Characteristics of Mortise and Tenon Joints

Authors

  • Erkan Likos
  • Eva Haviarova
  • Carl A. Eckelman
  • Yusuf Ziya Erdil
  • Ayhan Ozcifci

Keywords:

Mortise and tenon joints, bending moment capacity, semirigid rotation

Abstract

Bending moment capacity and moment rotation characteristics of mortise and tenon joints as a function of tenon geometry, grain orientation, length, and shoulder fit were examined. Bending moment capacity of all joints in which tenons were fully inserted in mortises was 54% greater than for joints in which tenons were not fully inserted. Jointswith 25.4-mm-long diamond-shaped tenons had greater moment capacity than either rectangular or round tenon joints, whereas joints with 38- or 51-mm-long rectangular tenons had greater capacities than jointswith diamond or round tenons. Similarly, for joints inwhich tenonswere not fully inserted, rectangular tenons had the greatest moment capacity regardless of grain orientation or length.

References

Eckelman C, Haviarova E (2006) Performance tests of school chairs constructed with round mortise and tenon joints. Forest Prod J 56(3):51-57.nEckelman C, Haviarova E, Zhu H, Gibson H (2001) Considerations in the design and development of school furniture based on local resources. Forest Prod J 51(6):56-63.nEckelman CA (1968) Furniture frame analysis and design. Unpublished PhD thesis, Purdue University, West Lafayette, IN. 231 pp.nEckelman CA (1978) Strength design of furniture. Tim-Tech, Inc., West Lafayette, IN. 231 pp.nEckelman CA (1995) Library chairs: An overview of the library technology reports test method with test reports on 30 chairs. Libr Technol Rep 31(2):117-214.nEckelman CA, Erdil YZ, Haviarova E (2003) School chairs for developing countries: Designing for strength and durability, simplicity, and ease of construction. Forest Prod J 53(2):63-70.nErdil YZ (2002) Integrated product engineering and performance testing of furniture, PhD thesis, Purdue University, West Lafayette, IN.nLothers JE (1960) Advanced design in structural steel. Prentice-Hall, Englewood Cliffs, NJ. 583 pp.n

Downloads

Published

2012-10-15

Issue

Number 4 / October 2012

Section

Research Contributions

License

The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:

1. All proprietary rights other than copyright, such as patent rights.

2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.

3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.