中国科学院机构知识库网格系统: 检索

Investigation of the behavior of a tunnel subjected to strike-slip fault rupture with experimental approach 期刊论文 OAI收割
GEOMECHANICS AND ENGINEERING, 2023, 卷号: 33, 期号: 5, 页码: 477
作者: Cui, Zhen; Wang, Tianqiang; Sheng, Qian; Zhou, Guangxin

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收藏 | 浏览/下载：11/0 | 提交时间：2023/08/02

deformation profile failure pattern strain distribution features strike-slip fault water conveyance tunnel

Microstructure evolution and fracture mechanism of a TiAl-Nb alloy during high-temperature tensile testing 期刊论文 OAI收割
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 卷号: 831, 页码: 12
作者: Zhang, Shunke; Tian, Ning; Li, Deyuan; Li JH(李江华); Jin, Fangwei

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收藏 | 浏览/下载：127/0 | 提交时间：2021/11/01

TiAl-Nb alloy Microstructure Deformation mechanism Damage features

Strain rate-dependent high temperature compressive deformation characteristics of ultrafine-grained pure aluminum produced by ECAP 期刊论文 OAI收割
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2016, 卷号: 26, 期号: 4, 页码: 966-973
作者: Yan Ying; Qi Yue; Chen Lijia; Li Xiaowu

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收藏 | 浏览/下载：26/0 | 提交时间：2021/02/02

RATE SENSITIVITY MECHANICAL-PROPERTIES BEHAVIOR COPPER CU ALLOY AL MICROSTRUCTURE FEATURES METALS equal channel angular pressing (ECAP) pure Al strain rate high temperature compression deformation damage microstructure

Strain rate-dependent high temperature compressive deformation characteristics of ultrafine-grained pure aluminum produced by ECAP 期刊论文 OAI收割
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2016, 卷号: 26, 期号: 4, 页码: 966-973
作者: Yan Ying; Qi Yue; Chen Lijia; Li Xiaowu

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收藏 | 浏览/下载：18/0 | 提交时间：2021/02/02

RATE SENSITIVITY MECHANICAL-PROPERTIES BEHAVIOR COPPER CU ALLOY AL MICROSTRUCTURE FEATURES METALS equal channel angular pressing (ECAP) pure Al strain rate high temperature compression deformation damage microstructure

Temperature-Dependent Compressive Deformation Behavior of Commercially Pure Iron Processed by ECAP 期刊论文 OAI收割
ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2015, 卷号: 28, 期号: 5, 页码: 531-541
作者: Yan Ying; Qi Yue; Jiang QingWei; Li XiaoWu

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收藏 | 浏览/下载：15/0 | 提交时间：2021/02/02

ULTRAFINE-GRAINED COPPER SEVERE PLASTIC-DEFORMATION MECHANICAL-PROPERTIES DAMAGE BEHAVIOR TITANIUM METALS STABILITY FEATURES ECAP Fe Uniaxial compression High-temperature mechanical behavior Pre-annealing Deformation features Microstructure

Temperature-Dependent Compressive Deformation Behavior of Commercially Pure Iron Processed by ECAP 期刊论文 OAI收割
ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2015, 卷号: 28, 期号: 5, 页码: 531-541
作者: Yan Ying; Qi Yue; Jiang QingWei; Li XiaoWu

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收藏 | 浏览/下载：7/0 | 提交时间：2021/02/02

ULTRAFINE-GRAINED COPPER SEVERE PLASTIC-DEFORMATION MECHANICAL-PROPERTIES DAMAGE BEHAVIOR TITANIUM METALS STABILITY FEATURES ECAP Fe Uniaxial compression High-temperature mechanical behavior Pre-annealing Deformation features Microstructure

Research on load-bearing characteristics of precision air-bearing rotary stage (EI CONFERENCE) 会议论文 OAI收割
3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China
作者: Wang L.; Wang L.; Wang L.; Lin J.

收藏 | 浏览/下载：117/0 | 提交时间：2013/03/25

Air-bearing is a core component of air-bearing rotary stage. The weakness that the air-bearing has the low load capacity and stiffness has been concerned about by domestic and foreign scholars. So how to improve the load capacity and stiffness has become a serious problem. In order to improve the load capacity and stiffness of the air-bearing rotary stage in this paper we improved structure of Zhang Wenjie and others' high-precision direct-drive air-bearing rotary stage. The gas film of air-bearing has been meshed by GAMBIT software and we use FLUENT software to obtain the carrying capacity features of the gas film. Finally the structural static force of the precision air-bearing rotary stage will be analyzed by ANSYS software. The analysis results show that: the structural design of the precision air-bearing rotary stage is reasonable and this structure can provide a larger range of loads. Even in heavy load conditions a larger deformation will not occur any more. It has a good practical value and also can be widely used in high precision equipments. (2012) Trans Tech Publications.

An improved algorithm to generate high quality progressive animation models (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Biomedical Engineering and Computer Science, ICBECS 2010, April 23, 2010 - April 25, 2010, Wuhan, China
作者: Zhao J.; Zhang S.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

In computer graphics investigation has been made in many years in progressive models generation to alleviate the workload of visualization processing. However most of the existing algorithms only focus on static meshes and very little works are to deal with animation models. In this paper we propose an improved method for generating progressive multiresolution animation models. By the method we first use a normal deviation parameter to improve the famous QEM method as our basic edge contraction metric to generate a base hierarchy. The sequence of the simplified models is generated progressively from the first frame to the last one. Based on the edge contraction sequence in the previous frame the contraction order in the current frame is adjusted according to the deformation degree. We demonstrate that our method works efficiently and can generate better approximations with well-preserved features than previous methods. 2010 IEEE.

Optimal multiresolution dynamic models generation based on triangle importance (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Image Analysis and Signal Processing, IASP'2010, April 12, 2010 - April 14, 2010, Xiamen, China
作者: Zhao J.; Zhang S.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

In this paper we propose an efficient method to generate optimal multiresolution dynamic models. By the method we define the triangle importance degree as a weight parameter to be embedded to the edge contraction cost so the new metric can not only measure distance error but also reflect geometric variation of local areas. A deformation degree weight is appended to the aggregated edge contraction cost for the whole animation thus sharp features on areas with large deformation can be preserved. In addition a process of mesh optimization and validity check can further alleviate the geometric distortion of the approximations. Our approach is efficient in operation easy for implementation and as a result high quality of dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.

Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文 OAI收割
International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China
作者: Zhang S.; Zhao J.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

In computer graphics applications mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation very little attentions have been paid to animated models. In this paper we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also we define a deformation degree parameter to be embedded into the aggregated quadric errors so areas with large deformation during the animation can be successfully preserved. Finally a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast easy to implement and as a result good quality dynamic approximations with well-preserved sharp features can be generated at any given frame. 2010 SPIE.