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Tensile ratcheting behaviors of bronze powder filled polytetrafluoroethylene
Wenjuan XU, Hong GAO, LiLan GAO, Xu CHEN, Yong WANG
《化学科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 103-109 doi: 10.1007/s11705-013-1315-8
关键词: bronze filled polytetrafluoroethylene (PTFE/bronze) uniaxial tensile behavior ratcheting behavior dissipation strain energy density (DSED)
Determination of energy dissipation of a spider silk structure under impulsive loading
Jorge ALENCASTRE,Carlos MAGO,Richard RIVERA
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 306-310 doi: 10.1007/s11465-015-0349-7
Various researches and studies have demonstrated that spider silk is much stronger and more deformable than a steel string of the same diameter from a mechanical approach. These excellent properties have caused many scientific disciplines to get involved, such as bio-mechanics, bio-materials and bio-mimetics, in order to create a material of similar properties and characteristics. It should be noted that the researches and studies have been oriented mainly as a quasi-static model. For this research, the analysis has taken a dynamic approach and determined the dissipation energy of a structure which is made of spider silk “Dragline” and produced by the Argiope-Argentata spider, through an analytical-experimental way, when being subjected to impulsive loading. Both experimental and analytical results, the latter obtained by using adjusted models, have given high levels of dissipation energy during the first cycle of vibration, which are consistent with the values suggested by other authors.
关键词: dissipation energy impact visco-elastic material spider silk
Tahir MAHMOOD, Sangarapillai KANAPATHIPILLAI, Mahiuddin CHOWDHURY
《机械工程前沿(英文)》 2013年 第8卷 第2期 页码 181-186 doi: 10.1007/s11465-013-0257-7
This paper demonstrates the application of a new multiaxial creep damage model developed by authors using stress traixiality to predict the failure time of a component made of 0.5%Cr-0.5%Mo-0.25%V low alloy steel. The model employs strain energy density and assumes that the uniaxial strain energy density of a component can be easily calculated and can be converted to multi-axial strain energy density by multiplying it to a function of stress trixiality which is a ratio of mean stress to equivalent stress. For comparison, an elastic-creep and elastic-plastic-creep finite element analysis (FEA) is performed to get multi-axial strain energy density of the component which is compared with the calculated strain energy density for both cases. The verification and application of the model are demonstrated by applying it to thin tube for which the experimental data are available. The predicted failure times by the model are compared with the experimental results. The results show that the proposed model is capable of predicting failure times of the component made of the above-mentioned material with an accuracy of 4.0%.
关键词: elastic-creep elastic-plastic-creep stress triaxiality life prediction pressure vessels finite element analysis (FEA)
Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR
《结构与土木工程前沿(英文)》 2015年 第9卷 第3期 页码 297-306 doi: 10.1007/s11709-015-0308-8
关键词: smart building isolation story and structural energy-dissipation damage assessment
Eric N. LANDIS, Roman KRAVCHUK, Dmitry LOSHKOV
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 190-200 doi: 10.1007/s11709-018-0487-1
关键词: ultra-high-performance concrete concrete fracture X-ray computed tomography acoustic emission
Alireza ARABHA NAJAFABADI, Farhad DANESHJOO, Hamid Reza AHMADI
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 722-730 doi: 10.1007/s11709-020-0624-5
关键词: damage detection strain energy influence line complex bridges rotation displacement
《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1399-1
• With the same charge, current density had little effect on As(III) removal in ACEC.
关键词: Electrocoagulation Air cathode Arsenic Current density Energy consumption
Xiu-Tian-Feng E, Lei Zhang, Fang Wang, Xiangwen Zhang, Ji-Jun Zou
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 358-366 doi: 10.1007/s11705-018-1702-2
High energy density fuels are critical for hypersonic aerospace propulsion but suffer from difficulties of ignition delay and incomplete combustion. This research reports aluminum nanoparticles (Al NPs) assisted ignition and combustion of high energy density JP-10 fuel. Al NPs with a size of 16 nm were fabricated through a mild and simple method by decomposing AlH3·Et2O with the addition of a surfactant ligand. The uniform size distribution, nanoscaled size and surface ligand make Al NPs stably suspend in JP-10, with 80% NPs being dispersed in the liquid fuel after six months. A shock tube test shows that the presence of 1 wt-% Al NPs can significantly shorten ignition delay time at temperature of 1500 to 1750 K, promote the combustion, and enhance energy release of JP-10. This work demonstrates the potential of Al NPs as ignition and combustion additive for high energy density fuel in hypersonic applications.
关键词: aluminum nanoparticles combustion ignition shock tube test high energy density fuel
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 773-791 doi: 10.1007/s11709-020-0627-2
关键词: developed viscous damper external orifice energy dissipation seismic behavior CFD model of viscous damper a simplified model
Damage detection in beam-like structures using static shear energy redistribution
《结构与土木工程前沿(英文)》 2022年 第16卷 第12期 页码 1552-1564 doi: 10.1007/s11709-022-0903-4
关键词: damage detection beam structure strain energy static displacement variation energy damage index
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 763-779 doi: 10.1007/s11709-023-0917-6
关键词: underground structures precast sidewall specimen seismic test method bearing capacity energy dissipation capacity plastic deformation
Review on cellulose paper-based electrodes for sustainable batteries with high energy densities
《化学科学与工程前沿(英文)》 2023年 第17卷 第8期 页码 1010-1027 doi: 10.1007/s11705-023-2307-y
关键词: cellulose paper electrodes Li-ion batteries high energy density
《化学科学与工程前沿(英文)》 2022年 第16卷 第3期 页码 420-432 doi: 10.1007/s11705-021-2065-7
关键词: carbon nanosheets manganese dioxide asymmetric supercapacitors energy density power density
周丰峻
《中国工程科学》 2000年 第2卷 第12期 页码 45-51
文章根据高能量密度爆炸的辐射流体动力学计算与TNT装药爆炸计算的结果,对二类爆炸波系的形成发展,爆炸近区、远区的物理特征和爆炸作用物理模拟问题进行了研究,得出了对防护工程比较重要的几点结论。同时对于同两类爆炸引起的次生洪水波灾害进行了探讨,阐明了系统开展洪水波防护研究的重要意义。
Behaviour of self-centring shear walls——A state of the art review
《结构与土木工程前沿(英文)》 2023年 第17卷 第1期 页码 53-77 doi: 10.1007/s11709-022-0850-0
关键词: self-centring shear walls rocking walls energy dissipation seismic performance factors PT loss residual drift
标题 作者 时间 类型 操作
Tensile ratcheting behaviors of bronze powder filled polytetrafluoroethylene
Wenjuan XU, Hong GAO, LiLan GAO, Xu CHEN, Yong WANG
期刊论文
Determination of energy dissipation of a spider silk structure under impulsive loading
Jorge ALENCASTRE,Carlos MAGO,Richard RIVERA
期刊论文
A model for creep life prediction of thin tube using strain energy density as a function of stress triaxiality
Tahir MAHMOOD, Sangarapillai KANAPATHIPILLAI, Mahiuddin CHOWDHURY
期刊论文
Aseismic smart building isolation systems under multi-level earthquake excitations: Part II, energy-dissipation
Min-Ho CHEY,J. Geoffrey CHASE,John B. MANDER,Athol J. CARR
期刊论文
Experimental investigations of internal energy dissipation during fracture of fiber-reinforced ultra-high-performance
Eric N. LANDIS, Roman KRAVCHUK, Dmitry LOSHKOV
期刊论文
Multiple damage detection in complex bridges based on strain energy extracted from single point measurement
Alireza ARABHA NAJAFABADI, Farhad DANESHJOO, Hamid Reza AHMADI
期刊论文
Effect of current density on groundwater arsenite removal performance using air cathode electrocoagulation
期刊论文
Synthesis of aluminum nanoparticles as additive to enhance ignition and combustion of high energy density
Xiu-Tian-Feng E, Lei Zhang, Fang Wang, Xiangwen Zhang, Ji-Jun Zou
期刊论文
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
期刊论文
Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway stations
期刊论文
Review on cellulose paper-based electrodes for sustainable batteries with high energy densities
期刊论文
Tripotassium citrate monohydrate derived carbon nanosheets as a competent assistant to manganese dioxide with remarkable performance in the supercapacitor
期刊论文