Stress and Strain Relationship

2014 ◽  
pp. 28-47
1966 ◽  
Vol 33 (1) ◽  
pp. 79-84 ◽  
Author(s):  
E. A. Davis ◽  
I. S. Tuba

An elastic-plastic analysis of the stress and strain distribution in a solid or hollow shaft containing external or internal hyperbolic notches is presented. The solution can be applied for any stress-strain relationship and for various specified amounts of plastic-zone penetration.


2011 ◽  
Vol 356-360 ◽  
pp. 2725-2729
Author(s):  
Yun Hai Cheng ◽  
Xin Shan Guo ◽  
Fu Xing Jiang ◽  
Zhi Liang Fu

Stress-strain relationship of waste body under different side pressures, water contents and particle fractions are investigated in this paper. The bearing features of waste filled body of entry retaining besides gob-side entry retaining are: (1) filling waste gob-side entry retaining requires adequate horizontal restraint; (2) gangue water content has little effect on filling body intensity and waste in natural water content state can be used to fill in gob-side entry retaining; (3) stress and -strain relationship of waste body (grain size ranges from 0 to 10mm) is nonlinear. The bearing capacity can meet the requirement of beside gob-side entry retaining support. Based on above experimental results, the industrial roadway retained experiment is successful. The research results provide theory design basis for wide application.


2008 ◽  
Vol 22 (31n32) ◽  
pp. 5559-5565
Author(s):  
HONGJIAN LIAO ◽  
ZHIGANG ZHANG ◽  
CHUNMING NING ◽  
JIAN LIU ◽  
LI SONG

This paper aims to study dynamic properties of loess. This study is helpful to the subject on how to avoid or decrease the seismic disasters on loess ground. Dynamic triaxial tests are carried out with saturated remoulded soil samples taken form loess sites in Xi'an, China. Dynamic stress and strain relationship as well as the rule of the accumulated residual strain are obtained from the test results. Linear relationship between accumulated residual strain and vibration circle under constant amplitude circular loading is presented. A hypothesis about the accumulated residual strain is proposed. 1D dynamic constitutive relationship model which can well describe the real relationship between dynamic stress and strain under irregular dynamic loading is established. Numerical program with this model is developed and an example is tested. Numerical results of hysteresis loop, accumulated residual strain, amplitude of dynamic stress and damping ratio show good agreement with test results. It is indicated that the hypothesis of accumulated residual strain and the 1D dynamic constitutive relationship model can accurately simulate the dynamic triaxial tests of saturated remoulded loess.


Author(s):  
Karthik Selva Kumar Karuppasamy ◽  
Balaji P. S. ◽  
Niranjan Sahoo

In this chapter, the basic concepts of strain and the subject of components deformation and associated strain is proposed to be briefly discussed. The strain is a pure geometric quantity so there will be no limitation on the material of the component is required. The significant aspects related to strain and stress-strain relationship briefly discussed in this proposed chapter were as follows: displacement and strain, principal strains, compatibility equations, relationship between stress and strain, two and three dimensional state of stress with respect to strain, stress-strain relationship curve, and overview of various experimental techniques employed for the measurement of stress and strain respectively.


1985 ◽  
Vol 107 (4) ◽  
pp. 250-254 ◽  
Author(s):  
M. Hoffmann ◽  
T. Seeger

The well known approximation formulas valid for uniaxial notch stresses are extended to multiaxial stress states in order to establish a load - equivalent notch stress and strain relationship. The correlation between equivalent and principal notch stresses and strains is obtained by applying theory of plasticity in combination with an assumption concerning one stress or strain component. The approximation method is summarized in a solution scheme. Finally aspects of accuracy are discussed.


2019 ◽  
Vol 275 ◽  
pp. 03002 ◽  
Author(s):  
WU Zhiqiang ◽  
CAI Zhengyin ◽  
XU Kai ◽  
GENG Zhizhou ◽  
HUANG Yinghao ◽  
...  

This paper presents the results of a laboratory study on the stress-strain relationship of solidified clay formed in seawater corrosion condition. An automatic triaxial apparatus was used and the axial stress and strain was monitored continuously. The dry density was 1.0g/cm3, the cement contents were 4, 6, 8 and 10% by weight of dry soil particles, and the curing time was 28, 60 and 90 days respectively. Test results indicate that the stress strain relationship of cemented clay was affected by soil density, cement content and curing period. A behaviour of strain hardening to strain softening occurred with the increase of cement content. Strong structure will form in cemented clay when the admixture content is 10% or more. The increase in strength of the solidified foundation is resulted from the increase in internal friction angle and cohesive force. The cohesive force increases obviously with the increase of the cement content and the curing age, but the change of internal friction angle is not pronounced after reaching a certain value.


1971 ◽  
Vol 103 (6) ◽  
pp. 599-605 ◽  
Author(s):  
R. Baughman
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document