On the distribution of tree growth stresses ? Part I: An anisotropic plane strain theory

1974 ◽  
Vol 8 (3) ◽  
pp. 184-196 ◽  
Author(s):  
R. R. Archer ◽  
F. E. Byrnes
Keyword(s):  
Plane Strain ◽  
Tree Growth ◽  
Strain Theory ◽  
Growth Stresses

Tree growth stresses—Part IV: Visco-elastic strain recovery

1972 ◽  
Vol 6 (2) ◽  
pp. 95-120 ◽  
Author(s):  
J. D. Boyd ◽  
K. B. Schuster
Keyword(s):  
Tree Growth ◽  
Elastic Strain ◽  
Strain Recovery ◽  
Growth Stresses

scholarly journals The plane strain theory for one-dimensional hexagonal quasicrystals in aperiodical plane

2009 ◽  
Vol 58 (13) ◽  
pp. 118
Author(s):  
Liu Guan-Ting ◽  
He Qing-Long ◽  
Guo Rui-Ping
Keyword(s):  
Plane Strain ◽  
Strain Theory ◽  
One Dimensional

An Elastic Strip Pressed Against an Elastic Half Plane by a Steadily Moving Force

1978 ◽  
Vol 45 (1) ◽  
pp. 89-94 ◽  
Author(s):  
G. G. Adams
Keyword(s):  
Plane Strain ◽  
Half Plane ◽  
Mixed Boundary ◽  
Contact Region ◽  
Theory Of Elasticity ◽  
Strain Theory ◽  
Fredholm Integral Equations ◽  
Elastic Strip ◽  
Concentrated Force ◽  
Moving Force

An infinite elastic strip is pressed against an elastic half plane of a different material by a steadily moving concentrated force. Using the plane strain theory of elasticity, it is shown that the problem can be decomposed into its symmetric and antisymmetric parts. These mixed boundary-value problems are then solved by reduction to Fredholm integral equations subject to certain other conditions. For various material combinations, and a range of speed, the extent and location of the contact region as well as the contact pressure will be computed and illustrated graphically.

Prediction of Residual Stresses and Distortion in Quenched Extruded Shapes Using Generalized Plane Strain Theory

2010 ◽  
Author(s):  
Harish P. Cherukuri ◽  
Patrick Ulysse ◽  
Ronald E. Smelser ◽  
Kannan Subramanian ◽  
Deepti Kotaru ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Plane Strain ◽  
Strain Theory ◽  
Generalized Plane Strain

scholarly journals METHODS FOR ALLEVIATION AND REDUCTION OF THE EFFECTS OF GROWTH STRESSES IN Eucalyptus urophylla

2017 ◽  
Vol 41 (4) ◽  
Author(s):  
Juliana Cristina da Silva ◽  
Ana Márcia Macedo Ladeira Carvalho ◽  
Bruno de Freitas Homem de Faria
Keyword(s):  
Tree Growth ◽  
Growth Stress ◽  
Efficient Technique ◽  
Eucalyptus Urophylla ◽  
Herbicide Application ◽  
Growth Stresses ◽  
Cracking Control

ABSTRACT There are many species of the Eucalyptus genus presents high levels of the growth stress. These stresses are mechanical efforts generated during the tree growth to help maintaining the balance of the cup in response to environmental and silvicultural agents. The stresses are responsible for the cracks of tops and for the warp after unfolding. The objective of this study was to test five different methods to minimize the effects of growth stress on the production of Eucalyptus urophylla sawlogs. The boards produced were then evaluated and measured for cracking, arching, curvature and cupping. The treatment with herbicide presented the smallest medium indexes of cracking (16.63 cm) and of arching (0.23 mm.m-1), while the medium curvature was smaller than observed in boards unfolded in 72 hours after the reduction of the trees (0.88 mm.m-1). Unfolding after ten days of harvesting represented the less efficient technique in the cracking control, curvature and arching. The cupping was not observed during boards processing. The herbicide application was more efficient in the reduction of the effects of the growth tensions.

scholarly journals Tree Growth Stresses

1950 ◽  
Vol 3 (3) ◽  
pp. 270 ◽  
Author(s):  
JD Boyd
Keyword(s):  
Stress Distribution ◽  
Tree Growth ◽  
Experimental Methods ◽  
Growth Stresses

Experimental methods for the determination of natural longitudinal stressesin trees are described and the data are used in the development of a mathematicalexpression for the stress distribution.

On the distribution of tree growth stresses

1979 ◽  
Vol 13 (1) ◽  
pp. 67-78 ◽  
Author(s):  
R. R. Archer
Keyword(s):  
Tree Growth ◽  
Growth Stresses
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