Experimental and Numerical Simulation of Dynamic Elastic Modulus Properties of Crystal Ball

张成朋; 杨贵; 刘汉龙; 孙逸飞

doi:10.13409/j.cnki.jdpme.2014.01.005

您当前的位置：

首页 >

文章列表页 >

Experimental and Numerical Simulation of Dynamic Elastic Modulus Properties of Crystal Ball

更新时间：2025-12-11

- Experimental and Numerical Simulation of Dynamic Elastic Modulus Properties of Crystal Ball
- Vol. 34, Issue 1, Pages: 34-39(2014)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2014.01.005
  CLC： V221.2
- Published：2014
- 稿件说明：
移动端阅览
[1]张成朋,杨贵,刘汉龙,孙逸飞.玻璃球动弹性模量特性试验和数值模拟研究[J].防灾减灾工程学报,2014,34(01):34-39.

张成朋, 杨贵, 刘汉龙, et al. Experimental and Numerical Simulation of Dynamic Elastic Modulus Properties of Crystal Ball[J]. 2014, 34(1): 34-39.
[1]张成朋,杨贵,刘汉龙,孙逸飞.玻璃球动弹性模量特性试验和数值模拟研究[J].防灾减灾工程学报,2014,34(01):34-39. DOI： 10.13409/j.cnki.jdpme.2014.01.005.

张成朋, 杨贵, 刘汉龙, et al. Experimental and Numerical Simulation of Dynamic Elastic Modulus Properties of Crystal Ball[J]. 2014, 34(1): 34-39. DOI： 10.13409/j.cnki.jdpme.2014.01.005.

摘要

堆石料颗粒形状较为复杂

且存在明显的颗粒破碎特征。为剔除颗粒形状对堆石料动力特性的影响

在不考虑颗粒破碎的情况下

采用玻璃球模拟堆石料进行动三轴试验

分析了试验围压对玻璃球动弹性模量的影响。基于动三轴试验成果

开展了细观数值模拟研究。研究表明:玻璃球的动弹性模量变化规律与堆石料的基本一致;三维颗粒流方程能较好地模拟该材料的动弹性模量特性;随着粗细颗粒直径跨度增大

试样级配关系增强

最大动弹性模量随之增大;细颗粒直径变小和粗颗粒直径变大都将引起最大动弹性模量的增大。试样的动弹性模量随着细观剪切模量的增大而增大

近似为幂函数关系

动应变降低。

Abstract

The shape of rockfill material paticle is highly complicated

and there is an obvious charateristic of grain crushing.To eliminate the influence of paticles′shape on the dynamic characteristics of rockfill material

the study of dynamic triaxial test on crystal ball was conducted under the condition of without considering particle breakage

and the influence of test confining pressure on dynamic elastic modulus of crystal ball was analysed.Based on the results of dynamic triaxial test

mesoscopic simulation was carried out.Study shows:the change law of dynamic elastic modulus of both crystal ball and rockfill material is identical basically

three-dimensional particle flow program can simulate the dynamic elastic modulus of this kind of material;along with the increase of grain diameter span

the sample grading relationship enhances

and the maximum dynamic modulus of elasticity increases

both diminishing the diameter of the small particles and largening the diameter of the big particles can lead to increase of the maximum dynamic modulus of elasticity.Along with the increase of mesoscopic shear modulus

the dynamic modulus of elasticity increases according to approximate power function relationship and the dynamic strain decreases.

关键词

Keywords

references

细粒含量对饱和砂土动弹性模量与阻尼比的影响研究 [J]. 王勇,王艳丽. 岩土力学 . 2011(09)

颗粒破碎对堆石料静动力特性影响的试验研究 [J]. 凌华,傅华,韩华强,王伟. 水利与建筑工程学报 . 2010(04)

堆石料动力变形特性的尺寸效应研究 [J]. 杨贵,刘汉龙,陈育民,沈扬. 水力发电学报 . 2009(05)

人工堆石料的颗粒破碎率 [J]. 孔德志,张其光,张丙印,孙逊. 清华大学学报(自然科学版) . 2009(06)

人工模拟堆石料颗粒破碎应变的三轴试验研究 [J]. 孔德志,张丙印,孙逊. 岩土工程学报 . 2009(03)

粗粒料大型三轴试验的尺寸效应研究 [J]. 李翀,何昌荣,王琛,赵红芬. 岩土力学 . 2008(S1)

“5.12”汶川地震对紫坪铺混凝土面板坝的影响及原因分析 [J]. 陈生水,霍家平,章为民. 岩土工程学报 . 2008(06)

循环荷载下砂土变形的细观数值模拟Ⅱ:密砂试验结果 [J]. 刘洋,吴顺川,周健. 岩土工程学报 . 2007(11)

球形颗粒散粒体的强度和变形特性试验研究 [J]. 吴良平,程展林,丁红顺. 长江科学院院报 . 2007(05)

粗粒土试验研究 [J]. 程展林,丁红顺,吴良平. 岩土工程学报 . 2007(08)

不同应力条件下砂土动模量特性的试验对比研究 [J]. 郭莹,栾茂田,董秀竹,王栋. 水利学报 . 2003(05)

颗粒材料的剪胀模型 [J]. 钟晓雄,袁建新. 岩土力学 . 1992(01)

粗粒料的现场压实[M]. 中国水利水电出版社 , 郭熙灵,文丹译, 1999

粗粒土的工程特性及应用[M]. 黄河水利出版社 , 郭庆国著, 1998

Views

218

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Triaxial Tests on Dynamic Elastic Modulus of Subgrade Fillers under High-speed Railway Loading

Experimental Study on Dynamic Characteristics of Rubberized Cemented Soil

Dynamic Characteristics of Soft Clay under Different Modes of Cycle Loading

Numerical Simulation Verification of Blasting Failure Effect in Rock Mass with Particle Flow Code

Effects of Rock Block Orientation on the Mechanical Characteristics of Rock and Soil Aggregate

Related Author

刘昆林

杨贵

许建宝

李庆冰

董明

王庆龙

王凤池

张春进

Related Institution

No data

⁰