Transient Plane-Stress Response of a Piezothermoelastic Circular Disk

Ashida, Fumihiro; Tauchert, Theodore R.; Sakata, Sei-ichiro

doi:10.1080/01495730290074342

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…In what follows, we assume that the piezoelectric substrate is cadmium selenide piezoelectric ceramic. Its parameters are given as [24]…”

Section: Numerical Process and Discussionmentioning

confidence: 99%

“…Many researchers have studied the interface fracture problems of piezoelectric materials under loading [20][21][22][23][24]. However, all of polycrystalline materials studied above are composed of multidomain large grains, and such sizes cannot meet the requirements of the current intelligent devices, but fine-grained piezoelectric materials are gaining increasing interest.…”

Section: Introductionmentioning

confidence: 99%

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Fracture Analysis of Griffith Interface Crack in Fine-Grained Piezoelectric Coating/Substrate under Thermal Loading

Liu

2020

Advances in Mathematical Physics

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Coating often plays a role in monitoring and protecting substrates in engineering applications. Interface cracks between the coating and the substrate can lead to crack growth under the action of external loading and will cause device failure. In this paper, the behavior of a fine-grained piezoelectric coating/substrate with a Griffith interface crack under steady-state thermal loading is studied. The temperature field, displacement field, and electric field of the coupling of thermal and electromechanical problems are constructed via integral transformation and the principle of superposition. Thus, problems are transformed into a system of singular integral equations, and the expressions of thermal intensity factor, thermal stress intensity factor, and electric displacement intensity factor are obtained. We used a numerical calculation and a system of singular equations to obtain the relationship of strength factor with material parameters, coating thickness, and crack size.

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“…In what follows, we assume that the piezoelectric substrate is cadmium selenide piezoelectric ceramic. Its parameters are given as [24]…”

Section: Numerical Process and Discussionmentioning

confidence: 99%