Materials Integration

News

Program Director

  • Yoshinao MISHIMA

    Program Director
    SIP "Materials Integration" for Revolutionary
    Design System of Structural Materials

    Yoshinao MISHIMA
    Professor Emeritus and former President, Tokyo Institute of Technology
    President, Japan Agency for Medical Research and Development (AMED)

  • Tetsuo MOHRI

    Deputy Program Director
    SIP "Materials Integration" for Revolutionary
    Design System of Structural Materials

    Tetsuo MOHRI
    Professor Emeritus, Hokkaido University

Greetings from the Program Director

The Cross-ministerial Strategic Innovation Promotion Program (SIP) was established in FY2014 led by the Council for Science, Technology and Innovation (CSTI) of the Government of Japan, in order to strengthen the industrial competitiveness of our country. SIP addressed 11 subjects for the first 5 year phase and was promoting them with industry, academia and government cooperation from basic research to practical application and commercialization. The second phase was launched with 12 new subjects in FY2018. ‘Materials Integration for Revolutionary Design System of Structural Materials’ is one of these subjects.

Our aim is to develop Materials Integration (MI) for the inverse design MI, which can create desired performance, materials and process, leading the world with the technical foundation of MI being developed in Japan.
 To achieve this we will utilize existing databases and create enhanced ones for new processes and evaluation techniques, and develop materials that will reduce the development period and the development cost towards social implementation by using the inverse design MI particularly for innovative CFRP and powder / 3D layered materials requiring high international competitiveness.

The 47 organizations (19 companies, 24 universities, 4 public (non-profit) institutes) are currently participating and cooperating with each other, dividing into 13 teams in 3 domains. We will create the inverse design MI that has applications in research and development, and that will demonstrate its effectiveness in advanced structural materials design and its manufacturing process. Furthermore, with the achievements of this program we are targeting implementation in the research and development of relevant companies such as industrial power plants, aircraft fuselages and engines.
 We will continue to make efforts to contribute to the further strengthening of the international competitiveness of the Japanese materials industry. I would appreciate your support in these goals.

July 2020

Research and Development

Background and Purpose

Manufacturing industries are dramatically changing with various countries investing in the innovation of materials development methods that are fully leveraging artificial intelligence (AI). We have proposed Materials Integration (MI) to contribute to the further strengthening of the international competitiveness which Japanese materials industries have attained. The MI system has been developed by industry-academia-government cooperation in ‘Structural Materials for Innovation’ which was one of the subjects in the first phase of the SIP.

The major purpose of MI is to reduce costs and shorten development periods utilizing material engineering methods and data science that combine computational science, theory and experimentation etc., particularly by virtually reproducing materials events on a computer.
In the first phase, we developed MI system ver.1.0 that determines fatigue and creep life etc. by automatically connecting multiple calculation modules related to four elements of structural materials: processing, structure, properties and performance.

In the second phase ‘ “Materials Integration” for Revolutionary Design system of Structural Materials’, we aim to further develop MI system ver. 1.0 and to construct a unique MI system for inverse design, which can create suitable materials, processing, and structures for the required performance.

Inverse Design Approaches to MI in Data Science

The sequential optimization method, which is used for searching natural resources and submarines, is one of the techniques we are using in this project. This method determines the next input to optimize the output of the experiments. The less calculation is made, the more efficiency increases.

The figure shown below is an example of Bayesian optimization which has been developed for searching for natural resources and can predict the most promising condition based on a statistic model built with the previous observations. There are other methods such as the Genetic Algorithm and the Monte Carlo Tree Search.

In the MI system being developed, the forward calculation is repeated while changing processing and structural conditions (input) until the required performance (output) is achieved. At this point, the system automatically determines the next input after each calculation.

Implementation of the MI System:Application to Cutting-edge Structural Materials Development

We focus on the following two targets:
1. MI system for the inverse design will be utilized for the process from materials to structure.
2. Successful examples of applications in structural materials will be created to introduce the system into industries. The MI system in this project deals with cutting-edge structural materials and processes.

The main reasons for choosing structural materials are that their life can be several decades and that their research and development, including verification tests, is time-consuming and expensive, so there are great benefits to using MI system in this field of research. Furthermore, we address high specific strength and heat resistance issues which could otherwise cause long-term development problems in the structural materials, and we are working on materials development for the aircraft and energy industries where they are particularly required.

Targets of MI: Structural materials

Research and Development Plan

Research and Development Plan for "Materials Integration" for Revolutionary Design System of Structural Materials(PDF:2.36MB)

Research and Development Items

R&D Structure

Research and Development Overview(Domains / Teams)

Our R&D system consists of three domains with 13 teams – the Domain A (5 teams): the establishment of the Inverse Design MI Basis for Advanced Structural Materials and Processes (Inverse Design MI), the Domain B (3 teams) : the applications of the Inverse Design MI to Actual Structural Materials(CFRP)and the Domain C (5 teams): the application of the Inverse Design MI to Actual Structural Materials(3D Powder Processing). the Domain A carries out basic technology development of MI systems such as calculation modules, databases, workflows, inverse problem solution methods, and development into advanced materials and processing. The Domains B and C, as potential users, use the technology developed by the Domain A for the actual materials and processing development in order to demonstrate its effectiveness. The description of the R&D Overview is shown and the details will be described on the following pages.