Abonnement à la biblothèque: Guest
International Journal for Multiscale Computational Engineering

Publication de 6  numéros par an

ISSN Imprimer: 1543-1649

ISSN En ligne: 1940-4352

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 2.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00034 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.46 SJR: 0.333 SNIP: 0.606 CiteScore™:: 3.1 H-Index: 31

Indexed in

SPECIAL ISSUE On Advances in Multiscale and Multiphysics Methods

Dong Qian

Department of Mechanical Engineering, University of Cincinnati

Wing Kam Liu

Department of Mechanical Engineering, Northwestern University


Preface

The last decade has witnessed significant advances in the development of complex material systems and devices that are starting to bring profound impact to engineering applications. Examples of such include multifunctional nanocomposites, self-assembled bio- and nanostructures, smart materials that can sense and actuate, self-healing materials, quantum dots, thin films, and many others. To understand and fully utilize the underlying mechanisms for advanced functionality and superior properties, the development of modeling and simulation tools necessitates close integration across many science and engineering disciplines. For instance, understanding how mechanical deformation affects the electronic properties of nanomaterials requires substantial knowledge in both continuum mechanics and electronic band structures and coupling mechanisms. Another common research theme is the multiple spatial and temporal scales involved in the particular engineering applications of these material systems and devices. As significant progress is being made in the areas of synthesis and fabrication, many challenges remain in advancing a truly seamless simulation-based design and analysis approach.

Motivated by these challenges, a symposium titled Multiscale Methods and Applications to Nano- and Bio- Mechanics and Materials was organized as part of the 8th World Congress on Computational Mechanics (WCCM). The major goal of this symposium was to directly address the challenges by providing a forum for researchers to exchange their ideas. A total of 15 presentations (including three keynote speeches) covering state-of-the-art developments were made and a wide range of topics was covered.

In light of the presentations made at the symposium, we organized this special issue on advances in multiscale and multiphysics methods for the International Journal for Multiscale Computational Engineering. A total of eight papers were collected for this special issue and they can be divided into two groups based on their themes. The first group centered on the exciting applications of a wide spectrum of simulation tools in the area of nano- and biomechanics of materials. Wu, Wang, Cohen, and Ge discussed the use of both molecular modeling and reduction approaches in understanding the mechanics of normal and sickle hemoglobin. The interfacial mechanics of polymer systems reinforced by functionalized carbon nanotubes were studied by Qian, He, and Shi using a molecular mechanics approach. Voskoboynikov presented a hybrid method for analyzing the mageto-optical response of semiconductor systems. This multiscale approach is featured by coupled electrodynamic and quantum mechanical representation. Shen and Chen developed a classical molecular dynamics approach to study the failure mechanism in low-dimensional nanoscale hierarchical structures with an emphasis on the effects of size and imperfection. Using a density-functional-based first-principles method, Pan, Yang, Zhang, and Hu presented a study on the stability and elastic properties of boron nanotubes under different temperatures.

The second group of papers explored recent developments in the field of modeling methodology. Wang and Tang reformulated the multitransmitting approach developed earlier and demonstrate that the new method shows significant improvement in reducing the spurious reflections at the numerical interface. Ma, Gao, and Reddy presented a theoretical framework on the nonclassical

Reddy–Levinson (R-L) beam model by incorporating the microstructural effects. The results are important for applications in which the length scale effect is significant and the classical elasticity theory needs to be modified. Finally, Aubertin, Rethore, and de Borst proposed a method for modeling dynamic crack propagation by coupling the method of molecular dynamics with an extended finite element method. They have developed a so-called ”MD box” concept for the purpose of coupling and shown that this approach is effective in removing spurious reflection and achieving energy conservation.

In summary, the collection of papers in this special issue represents continuing interest in integrating modeling and simulation with new developments in material and device synthesis and fabrication. These new developments, along with phenomena that are observed to be beyond and sometimes contradictory to the predictions based on classical theories, necessitate the reformulation of many basic methodology and simulation concepts. With this in mind, it is hoped that publication of this special issue will contribute to the field of multiscale and multiphysics methodologies by prompting new ideas and findings.

Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections Prix et politiques d'abonnement Begell House Contactez-nous Language English 中文 Русский Português German French Spain