Nadia Lapusta
Lawrence A. Hanson, Jr., Professor of Mechanical Engineering and Geophysics
Dipl., Kiev State University, 1994; M.S., Harvard University, 1996; Ph.D., 2001. Assistant Professor of Mechanical Engineering, Caltech, 2002-03; Assistant Professor of Mechanical Engineering and Geophysics, 2003-08; Associate Professor, 2008-10; Professor, 2010-19; Hanson Professor, 2019-.
Research Summary
Professor Lapusta's interdisciplinary research group works in the areas of computational mechanics of geomaterials, earthquake source processes, fundamentals of friction and fracture, solid-fluid interactions, and seismology.
Research Options
Geophysics;
Publications
- Fang, Jiaqi;Gurnis, Michael et al. (2024) Dynamic Emergence of Plate Motions and Great Megathrust Earthquakes Across Length and Time ScalesGeophysical Research Letters
- Lambert, Valère;Lapusta, Nadia (2023) Absolute stress levels in models of low-heat faults: Links to geophysical observables and differences for crack-like ruptures and self-healing pulsesEarth and Planetary Science Letters
- Li, Jiaxuan;Kim, Taeho et al. (2023) The break of earthquake asperities imaged by distributed acoustic sensingNature
- Erickson, Brittany A.;Jiang, Junle et al. (2023) Incorporating Full Elastodynamic Effects and Dipping Fault Geometries in Community Code Verification Exercises for Simulations of Earthquake Sequences and Aseismic Slip (SEAS)Bulletin of the Seismological Society of America
- Lattanzi, A.;Rubino, V. et al. (2023) Uncertainty Analysis of Dynamic Rupture Measurements Obtained Through Ultrahigh-Speed Digital Image CorrelationExperimental Mechanics
- Heimisson, Elías Rafn;Liu, Shengduo et al. (2022) A Spectral Boundary-Integral Method for Faults and Fractures in a Poroelastic Solid: Simulations of a Rate-and-State Fault With Dilatancy, Compaction, and Fluid InjectionJournal of Geophysical Research. Solid Earth
- Rubino, V.;Lapusta, N. et al. (2022) Intermittent lab earthquakes in dynamically weakening fault gougeNature
- Dal Zilio, Luca;Lapusta, Nadia et al. (2022) Subduction earthquake sequences in a non-linear visco-elasto-plastic megathrustGeophysical Journal International
- Jiang, Junle;Erickson, Brittany A. et al. (2022) Community-Driven Code Comparisons for Three-Dimensional Dynamic Modeling of Sequences of Earthquakes and Aseismic SlipJournal of Geophysical Research. Solid Earth
- Tal, Yuval;Rubino, Vito et al. (2022) Dynamics and Near-Field Surface Motions of Transitioned Supershear Laboratory Earthquakes in Thrust FaultsJournal of Geophysical Research. Solid Earth
- Liu, Yuan-Kai;Ross, Zachary E. et al. (2022) A unified perspective of seismicity and fault coupling along the San Andreas FaultScience Advances
- Heimisson, Elias Rafn;Liu, Shengduo et al. (2022) A spectral boundary-integral method for faults and fractures in a poroelastic solid: Simulations of a rate-and-state fault with dilatancy, compaction, and fluid injection
- Bedford, John D.;Faulkner, Daniel R. et al. (2022) Fault rock heterogeneity can produce fault weakness and reduce fault stabilityNature Communications
- Gori, Marcello;Rubino, Vito et al. (2021) Dynamic rupture initiation and propagation in a fluid-injection laboratory setup with diagnostics across multiple temporal scalesProceedings of the National Academy of Sciences of the United States of America
- Lambert, Valère;Lapusta, Nadia et al. (2021) Scale Dependence of Earthquake Rupture Prestress in Models With Enhanced Weakening: Implications for Event Statistics and Inferences of Fault StressJournal of Geophysical Research. Solid Earth
- Lambert, Valère;Lapusta, Nadia (2021) Resolving Simulated Sequences of Earthquakes and Fault Interactions: Implications for Physics-Based Seismic Hazard AssessmentJournal of Geophysical Research. Solid Earth
- Rubino, Vito;Tal, Yuval et al. (2021) Evolution of dynamic shear strength of frictional interfaces during rapid normal stress variationsEPJ Web of Conferences
- Heimisson, Elías Rafn;Rudnicki, John et al. (2021) Dilatancy and Compaction of a Rate-and-State Fault in a Poroelastic Medium: Linearized Stability AnalysisJournal of Geophysical Research. Solid Earth
- Larochelle, Stacy;Lapusta, Nadia et al. (2021) Constraining Fault Friction and Stability With Fluid-Injection Field ExperimentsGeophysical Research Letters
- Lambert, Valère;Lapusta, Nadia et al. (2021) Propagation of large earthquakes as self-healing pulses or mild cracksNature
- Lambert, Valère;Lapusta, Nadia (2020) Rupture-dependent breakdown energy in fault models with thermo-hydro-mechanical processesSolid Earth
- Tal, Yuval;Rubino, Vito et al. (2020) Illuminating the physics of dynamic friction through laboratory earthquakes on thrust faultsProceedings of the National Academy of Sciences of the United States of America
- Dal Zilio, Luca;Lapusta, Nadia et al. (2020) Unraveling scaling properties of slow-slip eventsGeophysical Research Letters
- Erickson, Brittany A.;Jiang, Junle et al. (2020) Community Code Verification Exercise for Simulating Sequences of Earthquakes and Aseismic Slip (SEAS)Seismological Research Letters
- Perry, Stephen M.;Lambert, Valère et al. (2020) Nearly magnitude‐invariant stress drops in simulated crack‐like earthquake sequences on rate‐and‐state faults with thermal pressurization of pore fluidsJournal of Geophysical Research. Solid Earth
Ae/Ge/ME 160 ab. Continuum Mechanics of Fluids and Solids.
9 units (3-0-6); first, second terms., 2023-24.
Elements of Cartesian tensors. Configurations and motions of a body. Kinematics-study of deformations, rotations and stretches, polar decomposition. Lagrangian and Eulerian strain velocity and spin tensor fields. Irrotational motions, rigid motions. Kinetics-balance laws. Linear and angular momentum, force, traction stress. Cauchy's theorem, properties of Cauchy's stress. Equations of motion, equilibrium equations. Power theorem, nominal (Piola-Kirchoff) stress. Thermodynamics of bodies. Internal energy, heat flux, heat supply. Laws of thermodynamics, notions of entropy, absolute temperature. Entropy inequality (Clausius-Duhem). Examples of special classes of constitutive laws for materials without memory. Objective rates, corotational, convected rates. Principles of materials frame indifference. Examples: the isotropic Navier-Stokes fluid, the isotropic thermoelastic solid. Basics of finite differences, finite elements, and boundary integral methods, and their applications to continuum mechanics problems illustrating a variety of classes of constitutive laws.
Instructors: Lapusta, Bhattacharya
Instructors: Lapusta, Bhattacharya
ME/CE/Ge 174. Mechanics of Rocks.
9 units (3-0-6); third term, 2023-24.
Prerequisites: Ae/Ge/ME 160 a.
Basic principles of deformation, strength, and stressing of rocks. Elastic behavior, plasticity, viscoelasticity, viscoplasticity, creep, damage, friction, failure mechanisms, shear localization, and interaction of deformation processes with fluids. Engineering and geological applications.
Instructor: Lapusta
Instructor: Lapusta
ME/Ge/Ae 266 ab. Fracture and Frictional Faulting.
9 units (3-0-6); second, third terms, 2022-23.
Prerequisites: Ae/AM/CE/ME 102 a or Ae/Ge/ME 160 a or instructor's permission.
Introduction to elastodynamics and waves in solids. Fracture theory, energy concepts, cohesive zone models. Friction laws, nucleation of frictional instabilities, rupture of frictional interfaces. Radiation from moving cracks. Thermal effects during dynamic fracture and faulting. Interaction of faulting with fluids. Applications to engineering phenomena a physics and mechanics of earthquakes.
Instructor: Lapusta
Instructor: Lapusta
Ae/Ge/ME 160 ab. Continuum Mechanics of Fluids and Solids.
9 units (3-0-6); first, second terms, 2021-22.
Elements of Cartesian tensors. Configurations and motions of a body. Kinematics-study of deformations, rotations and stretches, polar decomposition. Lagrangian and Eulerian strain velocity and spin tensor fields. Irrotational motions, rigid motions. Kinetics-balance laws. Linear and angular momentum, force, traction stress. Cauchy's theorem, properties of Cauchy's stress. Equations of motion, equilibrium equations. Power theorem, nominal (Piola-Kirchoff) stress. Thermodynamics of bodies. Internal energy, heat flux, heat supply. Laws of thermodynamics, notions of entropy, absolute temperature. Entropy inequality (Clausius-Duhem). Examples of special classes of constitutive laws for materials without memory. Objective rates, corotational, convected rates. Principles of materials frame indifference. Examples: the isotropic Navier-Stokes fluid, the isotropic thermoelastic solid. Basics of finite differences, finite elements, and boundary integral methods, and their applications to continuum mechanics problems illustrating a variety of classes of constitutive laws.
Instructors: Rosakis, Lapusta
Instructors: Rosakis, Lapusta
ME/CE/Ge 174. Mechanics of Rocks.
9 units (3-0-6); second term, 2021-22.
Prerequisites: Ae/Ge/ME 160a.
Basic principles of deformation, strength, and stressing of rocks. Elastic behavior, plasticity, viscoelasticity, viscoplasticity, creep, damage, friction, failure mechanisms, shear localization, and interaction of deformation processes with fluids. Engineering and geological applications. Not offered 2021-2022.
ME/Ge/Ae 266 ab. Dynamic Fracture and Frictional Faulting.
9 units (3-0-6); third term, 2021-22.
Prerequisites: Ae/AM/CE/ME 102 abc or Ae/Ge/ME 160 ab or instructor's permission.
Introduction to elastodynamics and waves in solids. Dynamic fracture theory, energy concepts, cohesive zone models. Friction laws, nucleation of frictional instabilities, dynamic rupture of frictional interfaces. Radiation from moving cracks. Thermal effects during dynamic fracture and faulting. Crack branching and faulting along nonplanar interfaces. Related dynamic phenomena, such as adiabatic shear localization. Applications to engineering phenomena and physics and mechanics of earthquakes.
Instructor: Lapusta
Instructor: Lapusta
Ae/Ge/ME 160 ab. Continuum Mechanics of Fluids and Solids.
9 units (3-0-6); first, second terms, 2020-21.
Elements of Cartesian tensors. Configurations and motions of a body. Kinematics-study of deformations, rotations and stretches, polar decomposition. Lagrangian and Eulerian strain velocity and spin tensor fields. Irrotational motions, rigid motions. Kinetics-balance laws. Linear and angular momentum, force, traction stress. Cauchy's theorem, properties of Cauchy's stress. Equations of motion, equilibrium equations. Power theorem, nominal (Piola-Kirchoff) stress. Thermodynamics of bodies. Internal energy, heat flux, heat supply. Laws of thermodynamics, notions of entropy, absolute temperature. Entropy inequality (Clausius-Duhem). Examples of special classes of constitutive laws for materials without memory. Objective rates, corotational, convected rates. Principles of materials frame indifference. Examples: the isotropic Navier-Stokes fluid, the isotropic thermoelastic solid. Basics of finite differences, finite elements, and boundary integral methods, and their applications to continuum mechanics problems illustrating a variety of classes of constitutive laws. Part a will be offered in 2020-21.
Instructor: Lapusta
Instructor: Lapusta