院系详细页面

[中文会议论文] 纳尺度黏附接触力学行为的理论研究

作者：贾宁，姚寅，陈少华（中国科学院力学研究所非线性国家重点实验室；北京理工大学先进结构技术研究院）

出处：北京力学会第二十三届学术年会中国北京 2017

会议录：北京力学会第二十三届学术年会会议论文集

关键词：黏附接触；范德华力；纳尺度；表面效应

摘要：弹性体在接触过程中由于分子间相互作用力会发生黏附现象,当接触半径在纳米量级时,表面效应的影响不可忽视。本文建立了纳米尺度下,刚球与半无限大基体接触时,综合考虑黏附效应和表面效应的理论模型。刚球和基体间的黏附效应基于L-J势来表征,表面效应对基体变形的影响基于我们提出的考虑纳米结构材料表面效应的弹性理 ...

[中文会议论文] 微尺度金属材料中耦合损伤的尺寸效应

作者：班昊轩，姚寅，陈少华（中国科学院力学研究所非线性国家重点实验室；北京理工大学先进结构技术研究院）

出处：北京力学会第二十三届学术年会中国北京 2017

会议录：北京力学会第二十三届学术年会会议论文集

关键词：微尺度材料；尺寸效应；损伤效应；应变梯度；内禀长度

摘要：本文基于C-W低阶应变梯度塑性理论与连续介质损伤力学提出了一种考虑损伤的低阶应变梯度塑性理论。该理论模型中不包含任何高阶应力和高阶应变率,应变梯度仅作为内变量来影响切线硬化模量,并且材料的弹性模量与内禀长度都受到损伤的影响。我们基于该理论模型,分析了两个典型的微尺度结构问题:细丝扭转与薄臂梁弯曲,发 ...

[中文会议论文] 磁场作用下微柱阵列表面的浸润效应

作者：李兴济，陈少华（中国科学院力学研究所非线性国家重点实验室；北京理工大学先进结构技术研究院）

出处：北京力学会第二十三届学术年会中国北京 2017

会议录：北京力学会第二十三届学术年会会议论文集

关键词：微柱阵列表面；接触角滞后；Cassie-Baxter状态；Surface；Evolver；可逆调控

摘要：通过对自然界各种奇特的生物表面的研究,研究者已经仿制出具有强黏附和超疏水性的仿生微柱阵列表面。为了进一步实现仿生表面的功能化,需要人工调控其表面性能的强弱。在已有的实验中,通过磁场,可以可逆调控磁颗粒修饰的微柱阵列表面的形貌,实现黏附、浸润性能调控。本文从理论方面,利用最小势能原理,建立了磁场与微柱 ...

[外文期刊] Optimization design of built-up thermal protection system based on validation of corrugated core homogenization SCIE EI

作者： Ma, Yongbin¹;Xu, Baosheng²;Chen, Mingji¹;He, Rujie¹;Wen, Weibin³;Cheng, Tianbao¹;Fang, Daining¹³; （¹Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, China;²AML, Department of Engineering Mechanics, School of Aerospace Engineering, Tsinghua University, Beijing, 100084, China;³College of Engineering, Peking University, Beijing, 100871, China）

出处： Applied Thermal Engineering 2017 Vol.115 P491-500

摘要： An optimization procedure aiming to design a built-up thermal protection system is presented in this paper. The built-up thermal protection system com ...

[外文期刊] Water mitigation effect under internal blast EI

作者： Li, Ying¹²;Ren, Guangwei²;Zhang, Wei²;Zhao, Pengduo²;Zhang, Lei²;Du, Zhipeng²; （¹Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, China;²Naval Academy of Armament, Beijing, 100161, China）

出处： Baozha Yu Chongji/Explosion and Shock Waves 2017 Vol.37 No.6 P1080-1086

摘要： In this work, we investigated a study of the mechanism governing the internal blast in a warship cabin and the technique for preventing it. We develop ...

[外文期刊] Tailorable thermal expansion of lightweight and robust dual-constituent triangular lattice material SCIE

作者： Wei, Kai¹;Peng, Yong¹;Wen, Weibin²;Pei, Yongmao²;Fang, Daining³; （¹State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, 410082, China;²State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing, 100871, China;³Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, China）

出处： Journal of Applied Mechanics, Transactions ASME 2017 Vol.84 No.10

摘要： Current studies on tailoring the coefficient of thermal expansion (CTE) of materials focused on either exploring the composition of the bulk material ...

[外文期刊] Analysis of Mechanical-magnetic Coupling Characteristics of NiFe2O4 Thin Film Based on Modified Bulge Tests

作者： Sun, Changzhen¹;He, Yuandong¹;Mao, Weiguo¹;Gu, Yang¹;Mao, Yiqi²;Zhang, Honglong³;Chen, Yanfei³;Pei, Yongmao³;Fang, Daining⁴; （¹School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China;²College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China;³College of Engineering, Peking University, Beijing, 100871, China;⁴Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, China）

出处： Cailiao Daobao/Materials Review 2017 Vol.31 No.8 P145-148

摘要： A modified multiple functional bulge apparatus andbulge mechanical-magnetic constitutive equation were introduced to study the mechanical-magnetic cha ...

[外文期刊] Measurement of Transverse Piezoelectric Coefficients of Pb(Zr0.52Ti0.48)O3 Thin Films by a Mechano-electrical Multiphysics Coupling, Bulge Test Method

作者： He, Yuandong¹;Sun, Changzhen¹;Mao, Weiguo¹;Mao, Yiqi²;Zhang, Honglong³;Chen, Yanfei³;Pei, Yongmao³;Fang, Daining⁴; （¹School of Materials Science and Engineering, Xiangtan University, Xiangtan, 411105, China;²College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China;³College of Engineering, Peking University, Beijing, 100871, China;⁴Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, China）

出处： Cailiao Daobao/Materials Review 2017 Vol.31 No.8 P139-144

摘要： On the measuring of transverse piezoelectric coefficients of Pb(Zr0.52Ti0.48)O3 (PZT) thin films, we derived the mechano-electrical coupling bulge con ...

[中文会议论文] A NOVEL DIGITAL LIGHT PROCESSING TECHNOLOGY OF SHORT SiC FIBER REINFORCED SiC MATRIX COMPOSITES

作者： Rujie He，Dong Liang，Keqiang Zhang，Lu Zhang，Lei Hu，Zongwei Tong （Institute of Advanced Structure Technology,Beijing Institute of Technology）

出处：第二十一届国际复合材料大会中国陕西西安 2017

会议录：第二十一届国际复合材料大会摘要集—专题一

摘要： The design and development of advanced ceramics and ceramic matrix composites for high-performance applications ranging from automotive to aerospace, ...

[中文会议论文] EFFECTS OF BENDING STIFFNESS AND ROUGHNESS ON THE PEELING BEHAVIOR OF AN ELASTIC THIN FILM ON A RIGID SUBSTRATE

作者： Zhilong Peng，Shaohua Chen （Institute of Advanced Structure Technology,Beijing Institute of Technology）

出处：第二十一届国际复合材料大会中国陕西西安 2017

会议录：第二十一届国际复合材料大会摘要集—专题七

摘要： Fundamental understanding of the peeling behaviors, debonding mechanisms and the influencing factors of interface strength of film/substrate systems i ...