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
1978 ◽  
Vol 45 (1) ◽  
pp. 89-94 ◽  
Author(s):  
G. G. Adams

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.


2019 ◽  
Vol 2 (4) ◽  
pp. 395
Author(s):  
Chen Zhuo ◽  
Deng JinGen ◽  
Yu Baohua ◽  
Weng Haoyang ◽  
Wang Jie ◽  
...  

The paper concerns the influence of time and strain-rate effects on the clays in one-dimensional consolidation under constant effective stress. An improved creep constitutive model is deduced, by analyzing the stress-strain theory developed by yin and sekiguchi. Treating the sample as a single system and applying the boundary conditions at the system level, differential mathematical equations to the consolidation problem of clays are obtained. The proposed differential mathematical equations have advantages in their ability to (i) not clarify the primary consolidation and secondary consolidation deformation. The error in calculating consolidation deformation which is caused by the argument about end of primary consolidation can be avoided. (ii) obtain the model parameters easily. How to achieve parameters by experiment is described in detail in the paper. (iii) be programmed and solved readily for the finite difference description of the problem. Results from clays have been used to examine the validity of the model. It is shown that the proposed model can describe the consolidation of clays well.


2007 ◽  
Vol 44 (8) ◽  
pp. 1006-1012 ◽  
Author(s):  
Dariusz Wanatowski ◽  
Jian Chu

Experimental results are presented in this note to study the coefficient of lateral earth pressure at rest, K0, of sand measured using a plane-strain apparatus. The data are also compared with the K0 measured by triaxial K0 consolidation tests. The test data show that the K0 values measured for specimens prepared using the water sedimentation method vary little with the void ratio of the soil, and therefore do not agree with the K0 values calculated using Jaky’s equation, which uses the peak friction angles obtained from either plane-strain or triaxial tests. The K0 values measured for specimens prepared using the moist tamping method follow a linear relationship with the void ratio. However, this relationship does not agree with Jaky’s equation either. The K0 values obtained from tests on the specimens prepared using the two different preparation methods are different, which may reflect the influence of soil fabrics or structures on the one-dimensional compression behaviour of soil.


2010 ◽  
Author(s):  
Harish P. Cherukuri ◽  
Patrick Ulysse ◽  
Ronald E. Smelser ◽  
Kannan Subramanian ◽  
Deepti Kotaru ◽  
...  

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