A new wetting deformation simulation method based on changes in mechanical properties

2020 ◽  
Vol 117 ◽  
pp. 103261 ◽  
Author(s):  
Xiongxiong Zhou ◽  
Shichun Chi ◽  
Yufeng Jia ◽  
Xiaoquan Shao
Keyword(s):  
Mechanical Properties ◽  
Simulation Method ◽  
Deformation Simulation ◽  
Wetting Deformation

Helium Bubbles Effect on the Mechanical Properties of CLAM Alloys by Milte-Scale Simulations

2014 ◽  
Vol 577 ◽  
pp. 81-85
Author(s):  
Jing Wei Zhang ◽  
Jun Cai ◽  
Shuang Jiang ◽  
Xin Guo ◽  
Qiao Zhi Sun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Yield Strength ◽  
Bubble Size ◽  
Simulation Method ◽  
Experimental Results ◽  
Helium Bubble ◽  
Yield Strain ◽  
Helium Bubbles

The effect of the different sizes and densities of He bubble on the mechanical properties of CLAM alloy was studied by milt-scale simulation method. It is found that with the increasing of helium bubble size and density, the yield strength and yield strain of CLAM alloys reduced, and the yield strength and yield elongation are predicted to be consistent with the experimental results.

Mechanical properties of high-performance elastomeric nanocomposites: a sequential mesoscale simulation approach

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 63586-63595 ◽  
Author(s):  
Shengwei Deng ◽  
Yongmin Huang ◽  
Shouhong Xu ◽  
Shaoliang Lin ◽  
Honglai Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Simulation Method ◽  
Simulation Approach ◽  
Mesoscale Simulation ◽  
Mechanical Responses

A sequential mesoscale simulation method was adopted to formulate elastomeric nanocomposites with desired macroscopic mechanical responses.

Thermal Stress Analysis Based on Equivalent Age of Heterogeneous Mass Concrete

2013 ◽  
Vol 353-356 ◽  
pp. 3256-3262
Author(s):  
Pei Fang Su ◽  
Xing Li Lu
Keyword(s):  
Mechanical Properties ◽  
Thermal Stress ◽  
Material Properties ◽  
Simulation Method ◽  
Temperature History ◽  
Mass Concrete ◽  
Mechanical Parameters ◽  
Equivalent Age ◽  
Fem Method ◽  
Calculation Procedures

In order to analysis thermal stress of mass concrete accurately, material properties of mass concrete are studied by numerical simulation method, and the equivalent age is introduced to describe the mechanical properties of concrete. The calculation models of concrete mechanical parameters are summarized, and then the calculation procedures are established on the basis of equivalent age. In this way, the temperature and temperature history are considered in these models. Meanwhile, the governing equation and computer program of the thermal stress based on the equivalent age are developed. The comparison of the numerical example using proposed method and conventional FEM method shows that the proposed method performs more adaptable and accurate.

Thermomechanical Analysis of Poly (Bisphenol-A Carbonate) Performance and Molecular Simulation

2013 ◽  
Vol 781-784 ◽  
pp. 576-579
Author(s):  
Xiu Juan Wang ◽  
Xiu Ting Zheng ◽  
Meng Song ◽  
Xiu Ying Zhao ◽  
Si Zhu Wu
Keyword(s):  
Molecular Structure ◽  
Mechanical Properties ◽  
Thermal Stability ◽  
Bisphenol A ◽  
Molecular Simulation ◽  
Simulation Method ◽  
Thermomechanical Analysis ◽  
Optical Performance ◽  
Different Types ◽  
Simulation Results

This work studied the influence of different molecular structure of polycarbonate on its properties. Different types of polycarbonate molecular chain models were built by molecular simulation method. By combining experimental and molecular dynamic simulation results, it is concluded that the polycarbonate-OQ2720 has better thermal stability, mechanical properties and optical performance, which is a better choice for aviation materials and manufacturing process.

scholarly journals Experimental Study on Anchorage Performance of Resin Grout with Steel Segment

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Junchao Shen
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Experimental Study ◽  
Simulation Method ◽  
The Self ◽  
Underground Space ◽  
Anchorage System ◽  
Different Types ◽  
Improvement Effect ◽  
Addition Amount

With the advantages of large anchoring force and fast anchoring speed, resin cartridge has become the main anchoring means of geotechnical engineering and underground space engineering support. Based on the theoretical analysis, it is clear that adding aggregate can improve the mechanical properties of grout and the bolt-grout interface stress state; the mechanical properties of aggregate are positively correlated with its improvement effect on anchorage performance. By using the numerical simulation method, it is concluded that the addition of steel segments into the resin grout can improve the stiffness of the anchorage system and enhance the energy absorption and antifailure ability of the anchorage system. Relying on the self-developed anchorage mixing device, the effects of steel segment diameter and addition amount on the anchoring force were studied experimentally, and the optimal addition amount of different types of steel segment to improve the maximum anchoring force was determined.

Numerical Test Study on Ground Frost Heave Deformation Caused by Artificial Horizontal Ground Freezing Method

2012 ◽  
Vol 256-259 ◽  
pp. 340-343
Author(s):  
Gui Quan Bi ◽  
Dong Wang ◽  
Ning Li
Keyword(s):  
Numerical Test ◽  
Simulation Method ◽  
Test Method ◽  
Frost Heave ◽  
Deformation Simulation ◽  
Test Study ◽  
Ground Freezing ◽  
Equivalent Load Method ◽  
Frozen Wall ◽  
Equivalent Load

Aiming at frost heave problem existing in tunnel construction with artificial horizontal ground freezing in coastal areas, this paper puts forward an equivalent load method for frost heave simulation and a nonlinear deformation simulation method for soil around frost wall. Employing the numerical test method, the designing parameters’ influence on ground frost heave is studied systematically. These parameters include depth of tunnel, frozen wall thickness, excavation radius of tunnel and frost heaving ratio. Furthermore, some measures are proposed to reduce ground frost heave.

scholarly journals A Multiscale Simulation Method and Its Application to Determine the Mechanical Behavior of Heterogeneous Geomaterials

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Shengwei Li ◽  
Heping Xie ◽  
Ru Zhang ◽  
Mingzhong Gao ◽  
Zetian Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Molecular Simulation ◽  
Heterogeneous Material ◽  
Simulation Method ◽  
Multiscale Simulation ◽  
Mechanical Behaviors ◽  
Finite Element Numerical Simulation

To study the micro/mesomechanical behaviors of heterogeneous geomaterials, a multiscale simulation method that combines molecular simulation at the microscale, a mesoscale analysis of polished slices, and finite element numerical simulation is proposed. By processing the mesostructure images obtained from analyzing the polished slices of heterogeneous geomaterials and mapping them onto finite element meshes, a numerical model that more accurately reflects the mesostructures of heterogeneous geomaterials was established by combining the results with the microscale mechanical properties of geomaterials obtained from the molecular simulation. This model was then used to analyze the mechanical behaviors of heterogeneous materials. Because kernstone is a typical heterogeneous material that comprises many types of mineral crystals, it was used for the micro/mesoscale mechanical behavior analysis in this paper using the proposed method. The results suggest that the proposed method can be used to accurately and effectively study the mechanical behaviors of heterogeneous geomaterials at the micro/mesoscales.

scholarly journals A molecular dynamics study on the mechanical properties of Fe–Ni alloy nanowires and their temperature dependence

RSC Advances ◽  
2020 ◽  
Vol 10 (66) ◽  
pp. 40084-40091
Author(s):  
Jianxin Chen ◽  
Pengtao Li ◽  
E Emily Lin
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Temperature Dependence ◽  
Deformation Mechanism ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Ni Alloy ◽  
Alloy Nanowires

Deformation mechanism and mechanical property of Fe–Ni alloy nanowires are investigated through molecular dynamics simulation method.

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