- 學位論文
金屬結合塑膠疊層結構之機械性能分析
Analysis of Mechanical Behavior of Laminate Structure of Metal and Plastics
摘要
本研究是探討鋁合金與塑膠結合的複合疊層結構進行產品的機械性能分析，主要疊層結構分為鋁合金與塑膠上、下兩層，將鋁合金的厚度固定在0.4mm，塑膠的厚度依照每0.4mm為一個變化，從0.8mm厚變化到2.8mm厚，此模擬部份共分為6個複合疊層結構模組跟2個各別為鋁合金與塑膠的比較。利用有限元素分析模擬各8組模組的集中負載與衝擊負載分析。初步模擬結果顯示，隨著塑膠厚度的增加其疊層結構的位移、等效應力都有下降的趨勢，並且搭配此疊層結構後，產品的總吸能與耐衝擊指數也相對提升。 利用田口法與模糊邏輯系統進行多重品質特性(集中負載等效應力、位移量、重量、總吸能、比吸能)的最佳化分析。從本研究的案例表示出，影響這些多重品質特性的主要因子為金屬成品的厚度、塑膠成品的厚度、材料性質、肋的配置與數，根據此結果，可以做為往後金屬/塑膠疊層結構之設計參考依據。
並列摘要
The purpose of this study is to investigate the mechanical behavior of the laminate structure made of Aluminum-Alloy and plastic under concentrated loading or impacting loading. The proposed laminate structure composed the upper layer of Aluminum-Alloy and the reinforced layer of plastics. The thickness of Aluminum-Alloy was fixed at 0.4 mm and ABS thickness was varied from 0.8 mm to 2.8 mm. The preliminary results showed that the increase of the thickness of ABS will increase the ability of impact energy absorption and the index value of specific energy absorption. In addition, The taguchi method and fuzzy logic method were used to find the optimum design parameters of multiple performance characteristics for stress, displacement, weight, absorption and specific energy absorption. The research showed that the main parameters affected the multiple performance characteristics were metal thickness, plastic thickness, material properties and reinforce ribs. It is believed that the results can be used as design reference for laminate structure of metal and plastics.