研究目的
To define the field of smart materials and structures, together with its current status and potential benefits, with a focus on piezoelectric materials.
研究成果
A state of the art of smart materials was presented, including history and applications, with a special focus on piezoelectric materials. Two numerical examples demonstrated the properties of piezoelectric materials, with results compared to those from experiment and literature.
研究不足
The paper does not explicitly mention limitations, but the focus is primarily on piezoelectric materials, potentially overlooking other types of smart materials.
1：Experimental Design and Method Selection:
The paper focuses on the development and state of the art of piezoelectric materials, including their history and applications. Two numerical examples are proposed to demonstrate the properties of piezoelectric materials.
2：Sample Selection and Data Sources:
The examples include a cantilevered piezoelectric beam with double PZT patches and a cantilevered piezo-laminated beam with a PZT sensor patch.
3：List of Experimental Equipment and Materials:
The finite element analysis (FEA) software ABAQUS is used. Materials include steel, PZT (PIC 151), and epoxy.
4：Experimental Procedures and Operational Workflow:
For the first example, an electric potential is applied, and the induced deformation is measured. Modal analyses under short-circuit and open-circuit conditions are performed. For the second example, a step force is applied at the tip of the beam, and the sensor output voltage and tip displacement are measured.
5：Data Analysis Methods:
Results from the numerical examples are compared to experimental results and literature.
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