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なお，ファイル作成（Create New Model）の際，「Symmetry」は「2D」と「Axial」を選択しており，物性値はライブラリの値をそのまま使用しています．
解析結果と理論値の差が生じた理由を探しているのですが，どうにも見当がつきません．
何か原因となりうることがありましたら，ご教示頂けますと幸いです．
よろしくお願いいたします．
May 19, 2026 at 4:29 pm
Chris Quan
Ansys Employee
In Autodyn Standalone, the axis of axial symmetry is the X-axis, so please make sure the correct axis is selected as the symmetry axis.
The theoretical results come from a static structural analysis, where the structure remains in static equilibrium throughout the analysis.
Autodyn, by contrast, is a dynamic analysis, so the predicted results are often higher than the static results under the same loading because of inertia effects.
How quickly is the pressure load being applied? Have you checked the Energy Summary to see how large the kinetic energy is? If the pressure load is applied more gradually over a longer period of time, this may reduce the kinetic energy and limit the dynamic response, which could make the predicted results more consistent with the theoretical results.
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