| 摘要 |
<p>A shape optimization method of a plate-like member (M) which has a concavo-convex shape and includes: identifying a bend stress point (PB) where a bend stress is higher in a mode where a specific load is applied to the plate-like member (M); identifying a bend axis (BA) from a distribution of stress vectors around the bend stress point (PB); identifying, in an orthogonal surface to the bend axis (BA), a pair of membrane stress points (PM1, PM2) where a ratio of a membrane stress to a sum of the bend stress and the membrane stress is higher; calculating an offset variable (LBE) which is a distance between a line segment connecting the pair of the membrane stress points (PM2, PM2) and the bend stress point (BA); and identifying a shape of the plate-like member (M) so as to minimize the offset variable (LBE).</p> |
