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contributor authorJen Y. Liu
contributor authorRobert J. Ross
date accessioned2017-05-08T23:50:19Z
date available2017-05-08T23:50:19Z
date copyrightJuly, 1996
date issued1996
identifier issn0094-4289
identifier otherJEMTA8-26979#375_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/117041
description abstractThis report describes a mathematical model for fatigue strength of cellulosic materials under sinusoidal loading. The model is based on the Reiner-Weissenberg thermodynamic theory of strength in conjunction with a nonlinear Eyring’s three-element model. This theory states that failure depends on a maximum value of the intrinsic free energy that can be stored elastically in a volume element of the material. The three-element mechanical model, which consists of a linear spring in series with a parallel array of another linear spring and an Eyring dashpot, provides a good description of rheological material properties. The strength model system was able to predict rupture occurrence of polymers and wood structural members under constant and ramp loading with satisfactory results. For sinusoidal loading, the present study shows that the strength model system can predict time at fracture as a function of applied mean stress, amplitude of cyclic stress, and stress frequency. Numerical examples with model parameters evaluated for small Douglas-fir beams are presented.
publisherThe American Society of Mechanical Engineers (ASME)
titleEnergy Criterion for Fatigue Strength of Wood Structural Members
typeJournal Paper
journal volume118
journal issue3
journal titleJournal of Engineering Materials and Technology
identifier doi10.1115/1.2806823
journal fristpage375
journal lastpage378
identifier eissn1528-8889
keywordsStructural elements (Construction)
keywordsWood products AND Fatigue strength
treeJournal of Engineering Materials and Technology:;1996:;volume( 118 ):;issue: 003
contenttypeFulltext


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