Fatigue Behaviour of LVL Subjected to Repeated Shear Stresses.
(1996)Division of Structural Engineering
Civil Engineering (M.Sc.Eng.)
- Abstract
- The fatigue behavior of laminated veneer lumber (Douglas-fir) subjected to shearstress has been studied. The static shear strength of specimens, 37 by 102 by 406 mm was established through a three point bending test over a span of 305 mm. Four series of specimens were subjected to a cyclic load history with peak loads ranging from 95 to 80 percent of the static strength. The duration of each load cycle was approximately 32 seconds. A stress-level verses (log) number of cycles diagram was produced to show the fatigue behavior. The load-level was calculated from the static strength using the assumption of equal rank. A least square regression analysis was made and was found to fit the S-N data well. The lowest load-level tested in this... (More)
- The fatigue behavior of laminated veneer lumber (Douglas-fir) subjected to shearstress has been studied. The static shear strength of specimens, 37 by 102 by 406 mm was established through a three point bending test over a span of 305 mm. Four series of specimens were subjected to a cyclic load history with peak loads ranging from 95 to 80 percent of the static strength. The duration of each load cycle was approximately 32 seconds. A stress-level verses (log) number of cycles diagram was produced to show the fatigue behavior. The load-level was calculated from the static strength using the assumption of equal rank. A least square regression analysis was made and was found to fit the S-N data well. The lowest load-level tested in this research was approximately 70 percent. At this load-level the specimen survived close to 3000 cycles. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/3172155
- author
- Norlin, Magnus
- supervisor
- organization
- year
- 1996
- type
- H3 - Professional qualifications (4 Years - )
- subject
- report number
- TVBK-5084
- ISSN
- 0349-4969
- language
- English
- id
- 3172155
- date added to LUP
- 2012-12-04 11:30:18
- date last changed
- 2014-06-12 08:53:48
@misc{3172155, abstract = {{The fatigue behavior of laminated veneer lumber (Douglas-fir) subjected to shearstress has been studied. The static shear strength of specimens, 37 by 102 by 406 mm was established through a three point bending test over a span of 305 mm. Four series of specimens were subjected to a cyclic load history with peak loads ranging from 95 to 80 percent of the static strength. The duration of each load cycle was approximately 32 seconds. A stress-level verses (log) number of cycles diagram was produced to show the fatigue behavior. The load-level was calculated from the static strength using the assumption of equal rank. A least square regression analysis was made and was found to fit the S-N data well. The lowest load-level tested in this research was approximately 70 percent. At this load-level the specimen survived close to 3000 cycles.}}, author = {{Norlin, Magnus}}, issn = {{0349-4969}}, language = {{eng}}, note = {{Student Paper}}, title = {{Fatigue Behaviour of LVL Subjected to Repeated Shear Stresses.}}, year = {{1996}}, }