A three-dimensional finite element model is developed to accurately capture the force-depth and charge-depth nanoindentation response of several classes of anisotropic piezoelectric materials such as relaxor ferroelectrics for which analytical models are at present unavailable. Upon validating the finite element model for transversely isotropic materials, it is demonstrated that the nanoindentation response of anisotropic piezoelectric materials displays a strong dependence on the nature of the indenter geometry and relatively weak dependence on the indenter conductivity. Furthermore, by recourse to âlongitudinalâ and âtransverseâ indentations, the nanoindentation method can also be used to identify the poling directions in piezoelectric materials as well.View full textDownload full textKeywordsmodeling, nanoindentation, piezoelectric materials, relaxor ferroelectricRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09500839.2012.669054
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机译：建立了三维有限元模型，以准确地捕获几种类型的各向异性压电材料（如张弛铁电体）的力深和电荷深纳米压痕响应，而目前尚无法提供分析模型。通过验证横向各向同性材料的有限元模型，可以证明各向异性压电材料的纳米压痕响应显示出对压头几何形状的强烈依赖性，而对压头电导率的依赖性相对较弱。此外，通过使用``纵向''和``横向''压痕，纳米压痕方法也可以用于识别压电材料中的极化方向。查看全文下载全文关键词建模，纳米压痕，压电材料，弛豫器ferroelectricRelated var addthis_config = {ui_cobrand：“泰勒和弗朗西斯在线”，servicescompact：“ citeulike，netvibes，twitter，technorati，delicious，linkedin，facebook，stumbleupon，digg，google，更多”，发布日期：“ ra-4dff56cd6bb1830b”}；添加到候选列表链接永久链接http://dx.doi.org/10.1080/09500839.2012.669054
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