Matrix Based Design Method of the Structure for Circular Economy

Daichi Kunishi (Toyota Motor)･Ryohei Tsuruta (Toyota Central R&D Labs.)

In designing the structure which matches the circular economy society, the matrix-based methodology "DSM" enables to decide it numerically and reasonably
is introduced.

Isogeometric Analysis of Fracture Problem
-Part 2: Simulation of Ductile Crack Propagation-

Ki-ichi Furuhashi (University of Yamanashi)･Kei Nagasaka･Idemitsu Masuda (Suzuki Motor)･Mizuki Hoshino･Kyohei Noguchi (University of Yamanashi)･Yuta Yokoyama (University of Yamanashi/Diver Technology)･Hirofumi Sugiyama (University of Yamanashi)･Shigenobu Okazawa (University of Yamanashi/Diver Technology)

We propose computational procedures to treat fracture problem in automobile crash simulation by Isogeometric analysis. In this paper, as a follow-up to the first report for proposal on the geometric reproduction of ductile crack, we describe a technique for simulating ductile crack propagation under mechanical condition. Compared to tensile experiments, the proposed computational methods are validated.

Development of the Axisymmetric Two-Dimensional Analysis Model for Rotary Friction Welding of the Steel Cylinder on the Aluminum Plate

Tomohiko Ariyoshi (ATORI CAE)

In the development of the automobile body-strucures, welding of the studs bolt to the aluminum member is one of the important procedures. For the welding of the both members, Rotary Friction Welding method can be utilized. For the efficient analyses for the Rotary Friction Welding phenomena, we developed the axisymmetric two-dimensional analysis model.

Strength Estimation for Resin Considering Joint by Numerical Simulation

Hirofumi Sugiyama･Ryousuke Yuzawa (University of Yamanashi)･Shigenobu Okazawa (University of Yamanashi/Diver Technology)

Estimating the strength of the same material or multi-material components is necessary for multi-material. Previous research examined material models for fiber-reinforced plastics using multiscale simulation. In this study, we try to consider the joint by using numerical techniques to predict the strength of mono-material or multi-material by numerical simulation. Some representative examples are shown to verify the proposed results.