論文摘要內容: 本研究主旨是探討材料塑膠薄膜與鋁的薄膜,分別對這兩種不同材質之做拉伸試驗,使用數位影像相關係數法的軟體:VIC-2D來進行分析,主要目的為在拉伸過程中的主應變位置及均質性的可行性,設備有可攜式拉伸試驗機、CCD攝影機、筆記型電腦;經過實驗測得,拉伸速度在約為3mm/min的定速進行拉伸試驗為最穩定,對塑膠薄膜與鋁薄膜各20片試片進行拉伸並拍攝30張以軟體分析產生數據,並使用變異數分析(ANOVA)做均質性討論;實驗結果發現,其均質性是可行的,且能從VIC-2D數據分析清楚知道,哪些區域的應變量值誤差最大,而實驗也證實材料的均向性位移;而拉伸塑膠與鋁薄膜的數據,其最大變異數值分別為0.00006與0.00004,變異數值越大代表著其材料的強度、延伸量、應變分布越不均勻,反之,越小材料的均質性越良好。 關鍵詞:數位影像相關係數法、VIC-2D、可攜式拉伸試驗機、變異數分析、均質性
The Contents of Abstract in this Thesis: The main purpose was to study plastic and aluminum films, and to perform tensile tests on these two different materials, respectively, using the digital image correlation method software: VIC-2D for analysis. The main purpose is the feasibility of the main strain position and homogeneity during the stretching process. The equipment has a portable tensile testing machine, CCD camera, notebook computer; by experimental measurements, for 20 pieces of plastic and aluminum film, each piece was stretched and 30 pictures were taken to generate data by software analysis, and a homogenization discussion is performed using ANOVA. The experimental results show that the proposed approach to measure uniformity is feasible. The maximum variation values of plastic and aluminum film are 0.00006 and 0.000004 respectively. The larger the variation value, the more uneven the strength, the elongation and the strain distribution of the material. On the contrary, the smaller the homogeneity of the material, the better. Keywords:Digital Image Correlation Method, VIC-2D, Portable Tensile Testing Machine, ANOVA, Homogeneity.