氣體鋼瓶封片穿刺之有限元素分析

Abstract

本研究使用有限元素模擬軟體MSC.Marc針對氣體鋼瓶封片進行穿刺模擬，並將材料試驗所得之材料機械性質及其材料延性破壞常數帶入有限元素模型中，模擬並求出氣體鋼瓶封片穿刺反力，並與封片穿刺力實驗結果驗證。 首先以型號SUS304之不鏽鋼板材做初步測試，將材料試驗取得材料機械性質及其材料延性破壞常數，帶入簡化之有限元素模型模擬其不鏽鋼板材穿刺反力，並與實驗結果驗證，確定本模擬方法可行。之後將上述模擬方法使用於模擬真實氣體鋼瓶封片的穿刺過程，並由實驗驗證，準確地模擬出氣體鋼瓶封片穿刺反力。未來開發新封片時，即可利用本研究模擬方法進行分析，以增加效率、降低成本。

This research used MSC.Marc to analyze the piercing of sealing membrane for gas cylinder. The material properties were first obtained through experiments, then the finite element model were constructed. In order to establish the reasonable analysis procedure, SUS304 stainless steel plate was selected as a preliminary test for piercing. By measuring the reaction force of pin, this research compared the results of simulation and experiment and verified the accuracy of the finite element model. This finite element model and analysis procedure were then adopted to the piercing analysis of sealing membrane for gas cylinder. With the verification through experiment, this analysis procedure can be used in the development of new product.