International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering最新文献_第2页

3D model based visualisation using dynamic models: problems with standard software and extensive strategies 使用动态模型的基于3D模型的可视化:标准软件和广泛策略的问题

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676729

V. Appelt, V. Shvetsov

引用次数: 0

SiO2 on CNT: molecular dynamics simulation 碳纳米管上SiO2的分子动力学模拟

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676302

V. Barkaline, V. Nelayev, A. Chashinski

引用次数: 1

Frame of an aromatic field 芳香场的框架

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676761

L. Makarov, Anatoliy S. Yastrebov

引用次数: 0

Finite element simulation of sheet metal forming using LS-DYNA code 利用LS-DYNA程序对板料成形过程进行有限元模拟

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676397

A. V. Mamutov, V. S. Mamutov

引用次数: 0

Dynamical tunneling in a system with non-monotonous potential and impenetrable walls 具有非单调电位和不可穿透壁的系统中的动力隧穿

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676299

A. Bagmanov, A. Sanin, A. Smirnovsky

引用次数: 0

Model for commercial 6XXX series aluminium alloys age-hardening simulation 商用6XXX系列铝合金时效硬化模拟模型

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676307

A. Vasilyev, A. S. Gruzdev, N. Kuzmin

{"title":"Model for commercial 6XXX series aluminium alloys age-hardening simulation","authors":"A. Vasilyev, A. S. Gruzdev, N. Kuzmin","doi":"10.1117/12.676307","DOIUrl":"https://doi.org/10.1117/12.676307","url":null,"abstract":"The aim of the paper is to present a quantitative physically based model for age-hardening behavior simulation of Al-Mg-Si alloys with major alloying elements content in practically interesting ranges 0.7wt. %< Si; Mg< 1.2 wt. %. Aging alloy microstructure evolution due to precipitate particles nucleation, growth and coarsening is described with the help of numerical approach based on classical nucleation-growth equations. Concurrent formation of two types of precipitate particles (Guinier-Preston zones and β\"- phase particles) is taken into account. Calibration of the model was performed mainly on the basis of a broad experimental data on quenched alloys isothermal aging kinetics investigation by Young's modulus, yield stress and electrical resistance measurements. At the first step of model calibration self-consistent sets of physical parameters that control nucleation and growth processes for both types of precipitate particles (activation energies of diffusion, specific energies of particle-matrix interfaces, precipitate solvent temperatures and others) were obtained using experimental data on Young's modulus increment. Quantitative evaluation of these parameters was performed using original procedure specially developed for this purpose. At the second step additional parameters of age- hardening response sub-model were determined. At the final step the model parameters, which appeared to be dependant on chemical composition, are presented as simple empirical functions of the composition. The developed model is capable to predict with reasonable accuracy solution treated Al-Mg-Si alloys age-hardening behavior under simple isothermal and different multi-step (non-isothermal) aging treatments, including initial natural pre-aging of the material, in practically interesting range of the main alloying elements content.","PeriodicalId":345260,"journal":{"name":"International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128569296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shape recovery behavior under thermo-mechanical loads in TiNi alloys 热机械载荷下TiNi合金的形状恢复行为

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676715

T. Breczko, K. Kuś

{"title":"Shape recovery behavior under thermo-mechanical loads in TiNi alloys","authors":"T. Breczko, K. Kuś","doi":"10.1117/12.676715","DOIUrl":"https://doi.org/10.1117/12.676715","url":null,"abstract":"The measurements of shape memory effect of the Ti50.08Ni49.92 alloy were conducted by observing the progressive changes in shape recovery with increasing number of thermo-mechanical cycles. Two different thermo-mechanical protocols were studied using a bending apparatus. In the first one, the temperature cycling was performed under bending deformation for cooling and subsequent heating without external load. After each heating path the shape recovery was evaluated as a result of reverse transformation. In the second protocol the temperature cycling was executed under bending deformation both for cooling and heating. Here, the shape recovery was measured under load and as the load was released right after heating. The results for the second protocol showed that the degree of shape recovery decreases continuously with thermo-mechanical cycling while in the first protocol it is observed to be high almost stable. It was found that the changes in shape recovery behaviour depend on the nature of the transformation cycle, in particular, on whether a stress is applied during transformation. The reverse transformation in the second protocol occurred under load; therefore, such a loading process may inhibit to some extent the shape recovery by an uncompleted transformation (retained martensite). The results also suggested that the microstructural changes in the actuated material are more pronounced for the thermo-mechanical cycling where the load was maintained during both cooling and heating in comparison to the cycling with heating under no load.","PeriodicalId":345260,"journal":{"name":"International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131634444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Assessment of mechanical characteristics of thin ribbons of amorphous metallic alloys at local loading 局部加载下非晶金属合金薄带的力学特性评价

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676722

V. Feodorov, I. Permyakova, A. N. Kapustin

引用次数: 0

Electronic theory of molecule vibrations 分子振动的电子理论

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676301

A. Melker, M. Vorobyeva

{"title":"Electronic theory of molecule vibrations","authors":"A. Melker, M. Vorobyeva","doi":"10.1117/12.676301","DOIUrl":"https://doi.org/10.1117/12.676301","url":null,"abstract":"In this contribution we report on the electronic theory of molecule vibrations. We have analyzed the main ideas and principles lying at the heart of mechanistic approach. It was shown that its accuracy is insufficient. To improve the accuracy, it is necessary to introduce the interaction of electron motion with vibrations of nuclei. It was done with the help of conception of binding and unshared electron pairs repelling each other. Although this conception has explained geometric structure of many molecules, it has a static nature. Transformation of this conception into equations of motion allowed us to assign a clear physical sense to elastic constants used in common theories as input parameters. It is shown that the elastic constant of deformation vibration is determined by the repulsion of bond-charges. In the framework of the theory developed, normal valence vibrations are not independent and connected with deformation vibrations. After applying the corrections one can improve significantly the accuracy of prediction and obtain a good agreement with experimental data. Electro-elastic parameters calculated for some molecules on the basis of the theory submitted are also given.","PeriodicalId":345260,"journal":{"name":"International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132150867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Discriminatory analysis for algebraic surfaces of more than second order 二阶以上代数曲面的判别分析

International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering Pub Date : 2006-04-03 DOI: 10.1117/12.676741

T. Tarasova, Vladimir M. Degtyarev

引用次数: 0