scholarly journals Design and Optimization of a Curved-Crease-Folding Process Applied to a Light Metallic Structure

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1110
Author(s):  
Doina Raducanu ◽  
Vasile Danut Cojocaru ◽  
Vlad Andrei Raducanu ◽  
Anna Nocivin ◽  
Nicolae Serban ◽  
...  
Keyword(s):  
Materials Science ◽  
Original Method ◽  
Digital Design ◽  
Research Approach ◽  
Metallic Structure ◽  
Metallic Material ◽  
Design And Optimization ◽  
It Architecture ◽  
Interdisciplinary Approaches ◽  
Individualized Production

Presently, the realization of complex, unconventional designs using efficient modalities is possible due to an increasing interest in interdisciplinary approaches: materials science, mathematics, IT, architecture, etc. Computerized techniques, among which the algorithmic/generative design is the most advanced one, that are associated with the individualized production methods are used for finding solutions for modern spatial forms with an unconventional spatial geometric shape, which are generically called “free-forms”. This work presents the design, realization and testing of a thin-walled metallic structure proposed as a light structural unit. An integrated research approach was proposed that utilized an algorithmic/digital design applied to the curved-crease-folding method with the study (at different length scales) of the metallic material behaviour after folding. An original method was proposed for the digital design and simulations. The specific mechanical behaviour of the metallic material in the elastic–plastic regime was used in this case to improve the structural performances; mechanical and structural tests were realized to analyse the behaviour of the entire structure. The results are useful for enhancing the accuracy of the digital design, the structural simulation programs and the fabrication methods.

High-Impact Practices in Materials Science Education: Student Research Internships Leading to Pedagogical Innovation in STEM Laboratory Learning Activities

MRS Advances ◽  
2017 ◽  
Vol 2 (31-32) ◽  
pp. 1667-1672 ◽  
Author(s):  
Lon A. Porter
Keyword(s):  
Computer Aided Design ◽  
Materials Science ◽  
Undergraduate Research ◽  
Science Research ◽  
High Impact ◽  
Digital Design ◽  
Education Student ◽  
Research Experience ◽  
Student Research ◽  
Pedagogical Innovation

ABSTRACTTraditional lecture-centered approaches alone are inadequate for preparing students for the challenges of creative problem solving in the STEM disciplines. As an alternative, learnercentered and other high-impact pedagogies are gaining prominence. The Wabash College 3D Printing and Fabrication Center (3D-PFC) supports several initiatives on campus, but one of the most successful is a computer-aided design (CAD) and fabrication-based undergraduate research internship program. The first cohort of four students participated in an eight-week program during the summer of 2015. A second group of the four students was successfully recruited to participate the following summer. This intensive materials science research experience challenged students to employ digital design and fabrication in the design, testing, and construction of inexpensive scientific instrumentation for use in introductory STEM courses at Wabash College. The student research interns ultimately produced a variety of successful new designs that could be produced for less than $25 per device and successfully detect analytes of interest down to concentrations in the parts per million (ppm) range. These student-produced instruments have enabled innovations in the way introductory instrumental analysis is taught on campus. Beyond summer work, the 3D-PFC staffed student interns during the academic year, where they collaborated on various cross-disciplinary projects with students and faculty from departments such as mathematics, physics, biology, rhetoric, history, classics, and English. Thus far, the student work has led to three campus presentations, four presentations at national professional conferences, and three peer-reviewed publications. The following report highlights initial progress as well as preliminary assessment findings.

scholarly journals Designing biomimetic robots: iterative development of an integrated technology design curriculum

2021 ◽  
Author(s):  
Debra Bernstein ◽  
Gillian Puttick ◽  
Kristen Wendell ◽  
Fayette Shaw ◽  
Ethan Danahy ◽  
...  
Keyword(s):  
Curriculum Design ◽  
Creative Thinking ◽  
Natural World ◽  
Research Approach ◽  
Integrated Learning ◽  
Technology Design ◽  
Design Task ◽  
Biomimetic Robots ◽  
Interdisciplinary Approaches ◽  
K 12

AbstractIn most middle schools, learning is segregated by discipline. Yet interdisciplinary approaches have been shown to cultivate creative thinking, support problem solving, and develop interest while supporting knowledge gains (NAE & NRC in STEM Integration in K-12 Education: Status, Prospects, and an Agenda for Research. National Academies Press, Washington, 2014). The Designing Biomimetic Robots project emphasizes problem-based learning to integrate engineering, science, and computational thinking (CT). During a 3 to 4-week unit, students study the natural world to learn how animals accomplish different tasks, then design a robot inspired by what they learned. The project engages students in science, engineering, and CT practices. Over the course of a 3-year project, we used a design-based research approach to: (1) identify and describe strategies and challenges that emerge from integrated curriculum design, (2) explicate how a balance of integrated disciplines can provide opportunities for student participation in science, engineering, and CT practices, and (3) explore how a technology design task can support students’ participation in integrated learning. Data from three focal groups (one from each year of the project) suggest that a focused design task, supported by explicit and targeted supports for science, CT, and engineering practices, led to a student technology design process that was driven by disciplinary understanding. This work highlights the importance of drawing out and prioritizing alignments between disciplines (Barber in Educ Des, 2(8), 2015), to enable integrated learning. Additionally, this work demonstrates how a technology design task can support student learning across disciplines, and how engaging in CT practices can further help students draw these connections.

scholarly journals Membangun Program Komunitas Wirausaha Siswa Melalui Pendidikan Berorientasi Kerja

2020 ◽  
Vol 3 (3) ◽  
pp. 80-96
Author(s):  
Syamsuar Abbas ◽  
Zelhendri Zen ◽  
Reflianto Reflianto
Keyword(s):  
High School ◽  
Education Program ◽  
School Community ◽  
Community Services ◽  
Senior High School ◽  
Digital Design ◽  
Research Approach ◽  
Community Based ◽  
Community Based Research ◽  
West Sumatra

The community services purposes was to establish the work-oriented school community program and prepared the volunteers as trainer for digital design Corel draw and photoshop as well as the training of producing any souvenir made by shellfish shells in order to build a work-oriented education program in the Senior high school community and strengthen the students’ entrepreneur skills in two State Senior High School 12 and 13 Padang. This Community-Based Research approach involved two state senior high school students in Padang City. The result of the services showed that the program of community-based research plays an important role in realizing the work-oriented education program by strengthening the local industrial contents and extracurricular activities of entrepreneurship training in the schools. It could be seen from the improvement of students' skill in the creative business of digital design and souvenir products made by shellfish as well as increasing student’s spirit for directly involving in the activities of entrepreneurship in their school.  Follow up these activities should strengthen the cooperation among another school in West Sumatra to have the graduates of ready to work and ready to be entrepreneur indirectly help the government to reduce the educated unemployment in West Sumatra as well.

scholarly journals Digital design and optimization of higher order adaptive system using Continuous genetic algorithm

2012 ◽  
Vol 1 (4) ◽  
pp. 290
Author(s):  
Vijay Yadav ◽  
Sarita Singh Bhadauria
Keyword(s):  
Genetic Algorithm ◽  
Rate Of Convergence ◽  
Adaptive System ◽  
Search Space ◽  
Higher Order ◽  
Digital Design ◽  
Solution Quality ◽  
Design And Optimization ◽  
Discrete Search ◽  
Continuous Genetic Algorithm

An algorithm for design and optimization of higher order adaptive system are presented in this paper. In this work, the algorithm applied on the continuous search space parameter rather than discrete search space parameter. A new continuous genetic operator such that Rank based selection, Normal crossover and mutations are used to improve the rate of convergence and solution quality has been proposed.

scholarly journals On the Application of the FactSage Thermochemical Software and Databases in Materials Science and Pyrometallurgy

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1156
Author(s):  
Jean-Philippe Harvey ◽  
Francis Lebreux-Desilets ◽  
Jeanne Marchand ◽  
Kentaro Oishi ◽  
Anya-Fettouma Bouarab ◽  
...  
Keyword(s):  
New Technologies ◽  
Materials Science ◽  
Material Selection ◽  
Refractory Materials ◽  
Metallic Materials ◽  
Design And Optimization ◽  
Operation Conditions ◽  
Liquid Solutions ◽  
Key Factor ◽  
Steel Deoxidation

The discovery of new metallic materials is of prime importance for the development of new technologies in many fields such as electronics, aerial and ground transportation as well as construction. These materials require metals which are obtained from various pyrometallurgical processes. Moreover, these materials need to be synthesized under extreme conditions of temperature where liquid solutions are produced and need to be contained. The design and optimization of all these pyrometallurgical processes is a key factor in this development. We present several examples in which computational thermochemistry is used to simulate complex pyrometallurgical processes including the Hall–Heroult process (Al production), the PTVI process (Ni production), and the steel deoxidation from an overall mass balance and energy balance perspective. We also show how computational thermochemistry can assist in the material selection in these extreme operation conditions to select refractory materials in contact with metallic melts. The FactSage thermochemical software and its specialized databases are used to perform these simulations which are proven here to match available data found in the literature.

Intellectual Community as a Bridge of Interdisciplinary Graduate Education in Materials Data Science

MRS Advances ◽  
2020 ◽  
Vol 5 (7) ◽  
pp. 355-362
Author(s):  
Chi-Ning Chang ◽  
Clinton A. Patterson ◽  
Willie C. Harmon ◽  
Debra A. Fowler ◽  
Raymundo Arroyave
Keyword(s):  
Data Science ◽  
Graduate Program ◽  
Materials Science ◽  
Training Model ◽  
Materials Informatics ◽  
Materials Development ◽  
Intellectual Community ◽  
Interdisciplinary Learning ◽  
Interdisciplinary Approaches ◽  
Materials Genome

AbstractRecognizing materials development was advancing slower than technological needs, the 2011 the Materials Genome Initiative (MGI) advocated interdisciplinary approaches employing an informatics framework in materials discovery and development. In response, an interdisciplinary graduate program, funded by the National Science Foundation, was designed at the intersection of materials science, materials informatics, and engineering design, aiming to equip the next generation of scientists and engineers with Material Data Science. Based on the 4- year implementation experience, this report demonstrates how intellectual communities bridge students interdisciplinary learning processes and support a transition from disciplinary grounding to interdisciplinary learning and research. We hope this training model can benefit other interdisciplinary graduate programs, and produce a more productive and interdisciplinary materials workforce.

ParticipationPlus

2018 ◽  
Vol 7 (1) ◽  
pp. 133-149
Author(s):  
M. Hank Haeusler ◽  
Luke Hespanhol ◽  
Marius Hoggenmueller
Keyword(s):  
Design Research ◽  
Digital Design ◽  
Research Approach ◽  
Aesthetic Judgement ◽  
Aesthetic Quality ◽  
Content Type ◽  
Design Objects ◽  
Input Variables ◽  
The Aesthetic ◽  
Design Options

Purpose The purpose of this paper is to explore through a project the feasibility of testing Carpo’s preposition of the second digital turn. It further argues that if media architecture could progress into a new digital design that makes use of large amount of data, the ability of computers to filter through these data and the computers capacity to generate a physical output based on data enabled through a “digital trial and error” process and “age-old problem” in media architecture design could be addressed—in the following called Master/Slave relationship. Its breakdown is then consequently a result of applying second digital turn thinking to media architecture. Design/methodology/approach The paper outlines two aspects to discuss the design of a media architecture installation: first, a qualitative method using the e-mail trails between the research team developing the installation to uncover trends in thought and opinion to identify if a Master/Slave outcome could have been avoided, thus it has the second digital turn thinking provided a “neutral judge”. Second, a design research approach where the designed outcome of the installation is discussed and evaluated. The scope of the chapter only allows for a short overview of the design process as such. Findings The authors could demonstrate that the design approach using second digital turn principles had overcoming the problem of a Master/Slave relationship in media architecture. Further, media architecture provides to the second digital turn, the advantage of providing input variables is of a technical nature and a clear set of objective relationships between the technical variables and constraints. Hence, it is easier to design x-number of design options. Media architecture also has advantage that the aesthetic judgement is potentially easier (which option to choose), as the primary function of most media façades lies in communicating dynamic text, graphic or images. Originality/value The paper understands its value in opening up and contributing to the question on how to judge objectiles. When designers are now in a position to develop computer programs that can design objects how does one judge which is the best object out of all the potential options? The paper argues that if the aesthetic quality of the outcome is understood a later judgement might be easier.

scholarly journals Human and mouse bones physiologically integrate in a humanized mouse model while maintaining species-specific ultrastructure

2020 ◽  
Vol 6 (44) ◽  
pp. eabb9265
Author(s):  
I. Moreno-Jiménez ◽  
A. Cipitria ◽  
A. Sánchez-Herrero ◽  
A. F. van Tol ◽  
A. Roschger ◽  
...  
Keyword(s):  
Materials Science ◽  
Multiple Scales ◽  
Original Method ◽  
Mouse Tissue ◽  
Humanized Mouse ◽  
Humanized Mouse Model ◽  
Mouse Tissues ◽  
Human Collagen ◽  
Species Specific ◽  
Human And Mouse

Humanized mouse models are increasingly studied to recapitulate human-like bone physiology. While human and mouse bone architectures differ in multiple scales, the extent to which chimeric human-mouse bone physiologically interacts and structurally integrates remains unknown. Here, we identify that humanized bone is formed by a mosaic of human and mouse collagen, structurally integrated within the same bone organ, as shown by immunohistochemistry. Combining this with materials science techniques, we investigate the extracellular matrix of specific human and mouse collagen regions. We show that human-like osteocyte lacunar-canalicular network is retained within human collagen regions and is distinct to that of mouse tissue. This multiscale analysis shows that human and mouse tissues physiologically integrate into a single, functional bone tissue while maintaining their species-specific ultrastructural differences. These results offer an original method to validate and advance tissue-engineered human-like bone in chimeric animal models, which grow to be eloquent tools in biomedical research.

scholarly journals Modified Virtual Blade Method for Propeller Modelling

2020 ◽  
Vol 22 (2) ◽  
pp. 603-618
Author(s):  
Mateusz Stajuda ◽  
Damian Obidowski ◽  
Maciej Karczewski ◽  
Krzysztof Jóźwik
Keyword(s):  
Numerical Models ◽  
Original Method ◽  
Computational Time ◽  
Model Accuracy ◽  
Computational Point ◽  
Design And Optimization ◽  
Rotating Blades ◽  
Propeller Design ◽  
Comparable Accuracy ◽  
Propeller Performance

AbstractThe emergence of large, propeller-based aircraft has revived interest in propeller design and optimization with the use of numerical methods. The flow complexity and computational time necessary to solve complicated flow patterns trailing behind rotating blades, created a need for faster than fully resolved 3D CFD, yet comparably accurate methods for validating multiple design points in shorter time. Improved Virtual Blade Method (VBM) for 2-bladed propeller, including method implementation, analysis and validation against 3D numerical and experimental data is presented. The study introduces adjustments to the original method, accounting for differences between VBM and fully resolved numerical models. These modifications prove to increase the model accuracy for the propeller under consideration and could potentially be applied for different blade configurations as well. The modified Virtual Blade Method allows one to compute the propeller performance with comparable accuracy to 3D CFD computation using only 10% of time needed for one computational point.

Sign in / Sign up

Export Citation Format

Share Document