Dynamic Fracture of Brittle Shells in a Space-Time Adaptive Isogeometric Phase Field Framework

Abstract

Phase field models for fracture prediction gained popularity as the formulation does not require the specification of ad-hoc criteria and no discontinuities are inserted in the body. This work focuses on dynamic crack evolution of brittle shell structures considering large deformations. The energy contributions from inplane and out-of-plane deformations are separately split into tensile and compressive components and the resulting coupled system is discretized within the isogeometric analysis framework. The resulting system is solved fully monolithically and adaptive local refinement is used in space and time.

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Document Details

Document Type
Technical Report
Publication Date
Sep 02, 2021
Accession Number
AD1146617

Entities

People

  • Chad M. Landis
  • Karsten Paul
  • Roger A. Sauer
  • Thomas J.R. Hughes

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Bulk Materials
  • Computations
  • Continuity
  • Crack Propagation
  • Cracks
  • Differential Equations
  • Electronic Mail
  • Energy
  • Engineering
  • Environmental Engineering
  • Equations
  • Geometry
  • Hyperelastic Materials
  • Internal Pressure
  • Materials
  • Mechanical Engineering
  • Partial Differential Equations
  • Personal Information Managers
  • Three Dimensional
  • Two Dimensional
  • Universities

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Reinforced Composite Materials
  • Systems Analysis and Design

Technology Areas

  • Space