＜Participants wanted＞Open Committee "Structural Strength Related Technology - Working Activity Report" (March 3rd: Structural Strength Committee)
Events
| Date | Friday, March 2023, 3 3:13 - 00:15 | |
| venue | Held online. Access information will be sent to those who have applied at a later date. | |
| plan | JSAE Structural Strength Committee | |
| Entry fee | Free | |
| Application deadline | Wednesday, November 2023, 3 1:15 | |
| Where to apply | https://tech.jsae.or.jp/opencom/Entry.aspx?id=0108 | |
| Inquiry | Technology Exchange Business Division Koyama e-mail: tech@jsae.or.jp | |
| Program | Click here for program PDF | |
| 13: 00 to 13: 05 | Opening remarks | Structural Strength Committee Chairperson Shigenobu Okazawa, Yamanashi University |
| 13: 05 to 13: 45 | Lecture 1 | [FRP working group activity report] "Development of collision energy absorption member using fiber reinforced composite material" --About simulation methods for compressive fracture phenomena based on heterogeneity of fiber-reinforced composite materials-- Mr. Atsushi Yokoyama, Kyoto Institute of Technology |
| In structural FRPWG, we have shown that it is possible to create parts that are lightweight and have high energy absorption properties by using fiber-reinforced composite materials for the crash box, which is a collision energy absorption member. We are developing a numerical analysis method that is effective in understanding the process of crushing an FRP crash box due to the compressive load applied during a collision.Since last year, we have been working on experimentally verifying the compressive fracture behavior of FRP materials to understand the fracture mechanism. We are trying to find out. This year, based on this knowledge, we are focusing on developing an analysis method for simulating compressive fracture phenomena. In this report, following on from last year, we will discuss in detail the results of the study of the compressive fracture phenomenon of FRP, especially the characteristic fracture behavior due to the presence of reinforcing fibers, and also introduce the status of study on the simulation method. | ||
| 13: 45 to 14: 25 | Lecture 2 | [AI-ML technology application working activity report] “AI-ML Technology Application Working Activity Report” Mr. Yoshitaka Wada, Kindai University |
| Engineering applications of machine learning have been rapidly expanding in recent years. On the other hand, there are still few examples of full-scale application. People often hesitate to apply this method because they do not understand the relationship between data preparation for learning (parameter ranges, amounts, etc.) and various machine learning settings (hyperparameters) for phenomena. In this working group, we aim to predict physical phenomena related to automobile structural strength using machine learning. Through this activity, we will share the results of new knowledge and the generation of common data. It is assumed that machine learning predictions will not be used as a complete replacement for CAE, but will be applied to reduce the burden of full CAE analysis by using them for pre-calculation and narrowing down parameter ranges, and will be useful for social implementation. We aim to share knowledge. This report describes the working activities and results to date. | ||
| 14: 25 to 15: 05 | Lecture 3 | [Bolt breakage working group activity report] “Development of bolt fracture prediction method using collision CAE” Mr. Yuya Ueda, Daihatsu Motor Co., Ltd. |
| Bolted joints are used in various locations in automobiles, and the accuracy of bolt fracture analysis often affects the prediction of collision and occupant safety performance. Although this is an important issue, there is no established method for simulating bolt rupture, and each company is currently searching for a variety of methods. This working group aims to develop a bolt rupture prediction technology in which analysis accuracy is an important factor in predicting collision and occupant safety performance. In this year, the fourth year since its establishment, we will report on the analysis of bolt fracture mechanisms using solid detailed meshes and the application of easy-to-handle 4D elements. | ||
| 15: 05 to 15: 10 | Closing remarks | Structural Strength Committee Chairperson Shigenobu Okazawa, Yamanashi University |