Exploiting microstructural instabilities in solids and structures: from metamaterials to structural transitions

DM Kochmann, K Bertoldi - Applied …, 2017 - asmedigitalcollection.asme.org
Instabilities in solids and structures are ubiquitous across all length and time scales, and
engineering design principles have commonly aimed at preventing instability. However …

Predicting the effective response of bulk polycrystalline ferroelectric ceramics via improved spectral phase field methods

A Vidyasagar, WL Tan, DM Kochmann - … of the Mechanics and Physics of …, 2017 - Elsevier
Understanding the electromechanical response of bulk polycrystalline ferroelectric ceramics
requires scale-bridging approaches. Recent advances in fast numerical methods to compute …

[HTML][HTML] A phase-field approach to studying the temperature-dependent ferroelectric response of bulk polycrystalline PZT

R Indergand, A Vidyasagar, N Nadkarni… - Journal of the …, 2020 - Elsevier
Ferroelectric ceramics are of interest for engineering applications because of their electro-
mechanical coupling and the unique ability to permanently alter their atomic-level dipole …

[HTML][HTML] Kinetics of ferroelectric switching in poled barium titanate ceramics: Effects of electrical cycling rate

V Kannan, M Trassin, DM Kochmann - Materialia, 2022 - Elsevier
Our understanding of the rate-dependent electro-mechanical response of ferroelectric
ceramics is incomplete–primarily due to limited experimental data characterizing the …

[HTML][HTML] Rate-dependent ferroelectric switching in barium titanate ceramics from modified PUND experiments

V Kannan, DM Kochmann - Extreme Mechanics Letters, 2022 - Elsevier
Predicting and controlling the rate-dependent electro-mechanical switching in ferroelectric
ceramics is challenging due to our current lack of understanding the underlying domain …

In-situ observation of evolving microstructural damage and associated effective electro-mechanical properties of PZT during bipolar electrical fatigue

WL Tan, KT Faber, DM Kochmann - Acta Materialia, 2019 - Elsevier
We investigate the fatigue behavior of bulk polycrystalline lead zirconate titanate (PZT)
during bipolar electric field cycling. We characterize the frequency-and cycle-dependent …

An effective constitutive model for polycrystalline ferroelectric ceramics: Theoretical framework and numerical examples

WL Tan, DM Kochmann - Computational Materials Science, 2017 - Elsevier
We present an efficient, physics-based constitutive model for bulk polycrystalline
ferroelectric ceramics, which links domain switching mechanisms and phase transitions at …

[HTML][HTML] Damage-induced mechanical damping in phase-transforming composites materials

P Junker, DM Kochmann - International Journal of Solids and Structures, 2017 - Elsevier
We investigate the influence of stress-induced damage on the effective viscoelastic
response of two-phase composites having constituents that undergo solid-solid phase …

[图书][B] Integrierter Modellrahmen zur konstitutiven Beschreibung der gekoppelten visko-ferroelektrischen Dissipation sowie Identifikation und Analyse von …

A Warkentin - 2024 - books.google.com
Ferroelektrika weisen zahlreiche bemerkenswerte lineare als auch nichtlineare Effekte auf,
weshalb diese Materialien in Wissenschaft und Technik weitläufig untersucht und genutzt …

Exploring the kinetics of domain switching in ferroelectrics for structural applications

CS Wojnar - 2015 - thesis.library.caltech.edu
The complex domain structure in ferroelectrics gives rise to electromechanical coupling, and
its evolution (via domain switching) results in a time-dependent (ie viscoelastic) response …