5 papers
Analytical Expression for Fracture Profile in Viscoelastic Crack Propagation
Hokuto Nagatakiya, Naoyuki Sakumichi, Shunsuke Kobayashi +1
We derive an analytical expression for the strain field during steady-state crack propagation in viscoelastic solids described by the standard linear solid (Zener) model. This expr…
Revisiting Volterra defects: Geometrical relation between edge dislocations and wedge disclinations
Shunsuke Kobayashi, Katsumi Takemasa, Ryuichi Tarumi
This study presents a comprehensive mathematical model for Volterra defects and explores their relations using differential geometry on Riemann--Cartan manifolds. Following the sta…
Snap and Jump: How Elastic Shells Pop Out
Takara Abe, Isamu Hashiguchi, Yukitake Nakahara +5
Grip, walk, crawl, and jump. Soft robots are integrated functional structures composed of compliant mechanisms, whose activity spans various industrial applications such as surgery…
Curling morphology of knitted fabrics: Structure and Mechanics
Kotone Tajiri, Riki Murakami, Shunsuke Kobayashi +2
Knitted fabrics are two-dimensional-like structures formed by stitching one-dimensional yarn into three-dimensional curves. Plain stitch or stockinette stitch, one of the most fund…
Biot-Savart law in the geometrical theory of dislocations
Shunsuke Kobayashi, Ryuichi Tarumi
Universal mechanical principles may exist behind seemingly unrelated physical phenomena, providing novel insights into these phenomena. This study sheds light on the geometrical th…