本研究使用熱融擠製成型的3D列印機分別列印出三種不同材料排向之試片，利用靜態與動態的材料試驗方法量測三個方向的材料常數，其中靜態試驗是以簡支梁的邊界條件支撐試片兩端並在中間掛置砝碼量測其變形量，再以變形產生的位移量與力量之間的關係計算出楊氏係數，動態試驗則是將試片以懸臂梁的單邊固定邊界條件，使用鋼珠落擊方式撞擊懸臂梁，並在懸臂梁上貼上壓電薄膜與使用雷射都卜勒振動儀兩種量測方式獲得暫態訊號，將所獲得之暫態訊號使用快速傅立葉轉換計算共振頻率，最後利用白努利-尤拉梁理論，使用基頻反算楊氏係數與剪力彈性係數進而求得蒲松氏比。經由上述實驗便可獲得不同排向的積層材料之完整的異向性材料常數。
另一研究則為開發光固化式3D列印機之壓電噴頭，故分析壓電材料的異向性力學與耦合電學之材料常數，先以逆向工程方式分解市售壓電噴頭的結構，並分析其壓電材料的成份，接著採購三家不同廠商的壓電材料預計應用於壓電噴頭的製作，研究中使用IEEE提出之共振法與數學式運算，獲得壓電材料完整的異向性材料常數，將三種測得的壓電陶瓷材料的材料常數比較廠商給予或文獻提供的數值，利用電子斑點干涉術與阻抗分析儀對其共振頻率與模態振形進行量測，再與有限元素數值分析代入的不同常數所獲得的結果相互比較驗證，本研究證實了量測所獲得的材料常數具有優良的可靠性。

This study used on the fused deposition modeling of 3D printer to process the specimens of three different directions. The specimens with different additive manufacture were measured their mechanical properties by static and the dynamic tests. The specimens of static test under the simply-supported beam boundary condition load the weight in the middle of specimens so that the Young's modulus were determined by measuring the deformation of strength. The specimens of dynamic test were achieved by the boundary condition of cantilever beam. Using a steel ball to strike the cantilever beam, the transient signal were obtained by two measured methods. Through the piezoelectric film bounded on the cantilever beam, the dynamic strain were determined by oscillator connecting with charge amplifier. Through the laser Doppler vibrometer (LDV) to measure the non-contact optical signals, the velocity were determined by the LDV built-in modulator. Using Fast Fourier Transform (FFT) to transfer the transient signals in time domain as frequency domain, the resonant frequency can be indicated by the maxima of frequency spectrums. Finally, the Young's modulus, Poisson’s ratio, and shear modulus can be calculated according to the theory of Bernoulli-Euler beam. Finally, the orthotropic material constants of the additive manufacturing specimen can be built by those static and dynamic tests.
The material constants of piezoelectric ceramics, which are developed on the piezoelectric print head development of 3D stereolithographic printer, are determined by resonance method according to IEEE standard. First, the commercial piezoelectric print head was dissemble in order to realize its components of the structure. Because dynamic characteristics of piezoelectric device need to establish by finite element calculation, the anisotropic material constants of piezoelectric materials were determined using in design of piezoelectric print head. The resonant frequencies obtained from FEM results, which were calculated by importing the anisotropic material constants of piezoelectric ceramics, were verified by two kinds of experimental measurements. The resonant frequencies and mode shapes both of out-of-plane and in-plane vibrations were determined by electronic speckle pattern interferometry (ESPI) and the in-plane resonant frequencies were also measured by impedance analyzer. The vibration characteristics of piezoelectric ceramics are shown in good consistence between FEM results and experimental measurements.

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