第二部門：計算力学（B）

[S02B-05] Large Displacement Analysis for Multi-stage Failure Simulation of Shell Structures

*Anna Vardanyan¹, Norio Takeuchi¹, Kenjiro Terada² (1. Hosei University, 2. Tohoku University)

Keywords:flat shell, large displacement analysis, hybrid-type penalty method

In this study, we propose a large displacement analysis method using flat plate shell elements in HPM for multi-stage failure simulation (MSFS). First, we describe the flat plate elements of HPM using the local coordinate system. Even with a flat plate, adjacent elements have an angle when a large displacement occurs. Next, we propose the relative displacement in this case. The "step by step method" is used as the algorithm for large displacement analysis. Finally, the accuracy of the solution of the proposed method is verified by a simple numerical example.