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No.462 S-ALE法による爆薬モデルのテスト解析

Structured ALE (S-ALE)法を用いてシンプルな爆薬モデルのテスト解析を行い、従来からのALE(Conventional ALE)法と結果を比較しました。少し差異がありますが実用上は問題ないレベルだと思います。

Keywords: S-ALE, ALE, High Explosive, Blast wave, nuber of elements : 520K elements, Cpu time of S-ALE method was faster than ALE method 16% (good performance)

Tool: LS-PrePost ver.4.3, LS-DYNA MPP Single Precision Win64

なお，本事例はサンプルであることをご了承下さい。

July-08-2017

Fig.1 Pressure ( Conventional ALE ) at 0.002(s)

Fig.2 Pressure ( Structured ALE ) at 0.002(s)

Fig.3 Pressure ( Conventional ALE ) at 0.004(s)

Fig.4 Pressure ( Structured ALE ) at 0.004(s)

Fig.5 Pressure ( Conventional ALE ) at 0.002(s)

Fig.6 Pressure ( Structured ALE ) at 0.002(s)

Fig.7 Pressure ( Conventional ALE ) at 0.003(s)

Fig.8 Pressure ( Structured ALE ) at 0.003(s)

Fig.9 Pressure ( Conventional ALE ) at 0.004(s)

Fig.10 Pressure ( Structured ALE ) at 0.004(s)

Fig.11 Pressure ( Conventional ALE ) at 0.005(s)

Fig.12 Pressure ( Structured ALE ) at 0.005(s)

Fig.13 Comparison of gas volume history