scholarly journals Numerical Modeling of Thermal-Dependent Creep Behavior of Soft Clays under One-Dimensional Condition

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Qi-Yin Zhu ◽  
Ping Qi
Keyword(s):  
Creep Behavior ◽  
Soil Structure ◽  
Soft Clay ◽  
Thermal Creep ◽  
Related Equation ◽  
Influence Of Temperature ◽  
One Dimensional ◽  
Soft Clays ◽  
Influence Of Temperature On ◽  
Oedometer Tests

Creep is a common phenomenon for soft clays. The paper focuses on investigating the influence of temperature on the time-dependent stress-strain evolution. For this purpose, the temperature-dependent creep behavior for the soft clay has been investigated based on experimental observations. A thermally related equation is proposed to bridge the thermal creep coefficient with temperature. By incorporating the equation to a selected one-dimensional (1D) elastic viscoplastic (EVP) model, a thermal creep-based EVP model was developed which takes into account the influence of temperature on creep. Simulations of oedometer tests on reconstituted clay are made through coupled consolidation analysis. The bonding effect of the soil structure on compressive behavior for intact clay is studied. By incorporating the influence of the soil structure, the thermal creep EVP model is extended for intact clay. Experimental predictions for thermal creep oedometer tests are simulated at different temperatures and compared to that obtained from reconstituted clay. The results show that the influence of temperature on the creep behavior for intact clay is significant, and the model, this paper proposed, can successfully reproduce the thermal creep behavior of the soft clay under the 1D loading condition.

Influence of Temperature on the Preparation of GaN Nanowires

2014 ◽  
Vol 887-888 ◽  
pp. 121-125
Author(s):  
Xin Zhong Wang ◽  
Cheng Guo Wu ◽  
Shi Guo Li
Keyword(s):  
Electron Microscopy ◽  
Optoelectronic Devices ◽  
Chemical Vapor ◽  
Influence Of Temperature ◽  
One Dimensional ◽  
X Ray ◽  
Gan Nanowires ◽  
Transmission Electron ◽  
Influence Of Temperature On ◽  
Growth Method

As one-dimensional GaN material has excellent physical properties, it owns a huge prospect in the field of optoelectronic devices, and nanowire is currently one of the hotspots, at home and abroad, which had already invested a considerable force into the GaN nanowires. This paper studied the growth method based on Gas Liquid Solid (VLS) mechanism using Ni as catalyst in a chemical vapor deposition (CVD) system. By scanning electron microscopy (SEM), energy dispersive X-ray fluorescence (EDX) spectroscopy, transmission electron microscopy (TEM) test, we focused on the influence of temperature and pretreat on the morphology and properties of GaN nanowires. At the same time, we explored the law and gave an appropriate explanation.

Experimental Study on Creep Behavior in Oedometer Tests of Reconstituted Soft Clays

2019 ◽  
Vol 19 (3) ◽  
pp. 04018198 ◽  
Author(s):  
Zilong Wu ◽  
Yongfeng Deng ◽  
Yujun Cui ◽  
Annan Zhou ◽  
Qi Feng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Creep Behavior ◽  
Soft Clays ◽  
Oedometer Tests

The effect of temperature on high-resolution TEM image contrast

1995 ◽  
Vol 53 ◽  
pp. 640-641
Author(s):  
T. Geipel ◽  
W. Mader ◽  
P. Pirouz
Keyword(s):  
Form Factor ◽  
Inelastic Scattering ◽  
Accurate Method ◽  
Waller Factor ◽  
Effect Of Temperature ◽  
Specimen Thickness ◽  
Influence Of Temperature ◽  
Debye Waller Factor ◽  
Influence Of Temperature On ◽  
Atomic Form Factor

Temperature affects both elastic and inelastic scattering of electrons in a crystal. The Debye-Waller factor, B, describes the influence of temperature on the elastic scattering of electrons, whereas the imaginary part of the (complex) atomic form factor, fc = fr + ifi, describes the influence of temperature on the inelastic scattering of electrons (i.e. absorption). In HRTEM simulations, two possible ways to include absorption are: (i) an approximate method in which absorption is described by a phenomenological constant, μ, i.e. fi; - μfr, with the real part of the atomic form factor, fr, obtained from Hartree-Fock calculations, (ii) a more accurate method in which the absorptive components, fi of the atomic form factor are explicitly calculated. In this contribution, the inclusion of both the Debye-Waller factor and absorption on HRTEM images of a (Oll)-oriented GaAs crystal are presented (using the EMS software.Fig. 1 shows the the amplitudes and phases of the dominant 111 beams as a function of the specimen thickness, t, for the cases when μ = 0 (i.e. no absorption, solid line) and μ = 0.1 (with absorption, dashed line).

The Influence of Temperature on Successful Reproductions of Burbot, Lota Lota (L.) Under Hatchery Conditions

2010 ◽  
Vol 25 (1) ◽  
pp. 93-105 ◽  
Author(s):  
Daniel Żarski ◽  
Dariusz Kucharczyk ◽  
Wojciech Sasinowski ◽  
Katarzyna Targońska ◽  
Andrzej Mamcarz
Keyword(s):  
Lota Lota ◽  
Influence Of Temperature ◽  
Influence Of Temperature On
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