Files and links (1)
Published, Version of Record (VoR)CC BY-NC-ND V4.0, Open
Journal article
Energy dissipation via acoustic emission in ductile crack initiation
International journal of fracture, v 199(1), pp 89-104
01 May 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This article presents a modeling approach to estimate the energy release due to ductile crack initiation in conjunction to the energy dissipation associated with the formation and propagation of transient stress waves typically referred to as acoustic emission. To achieve this goal, a ductile fracture problem is investigated computationally using the finite element method based on a compact tension geometry under Mode I loading conditions. To quantify the energy dissipation associated with acoustic emission, a crack increment is produced given a pre-determined notch size in a 3D cohesive-based extended finite element model. The computational modeling methodology consists of defining a damage initiation state from static simulations and linking such state to a dynamic formulation used to evaluate wave propagation and related energy redistribution effects. The model relies on a custom traction separation law constructed using full field deformation measurements obtained experimentally using the digital image correlation method. The amount of energy release due to the investigated first crack increment is evaluated through three different approaches both for verification purposes and to produce an estimate of the portion of the energy that radiates away from the crack source in the form of transient waves. The results presented herein propose an upper bound for the energy dissipation associated to acoustic emission, which could assist the interpretation and implementation of relevant nondestructive evaluation methods and the further enrichment of the understanding of effects associated with fracture.
Metrics
Details
- Title
- Energy dissipation via acoustic emission in ductile crack initiation
- Creators
- J. A. Cuadra - Lawrence Livermore National LaboratoryK. P. Baxevanakis - Drexel UniversityM. Mazzotti - Drexel UniversityI. Bartoli - Drexel UniversityA. Kontsos - Drexel UniversityLawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Details
- International journal of fracture, v 199(1), pp 89-104
- Publisher
- Springer Nature
- Number of pages
- 16
- Grant note
- 1002809 / National Science Foundation; National Science Foundation (NSF) N00014-13-1-0143 / Office of Naval Research
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000374340900006
- Scopus ID
- 2-s2.0-84963819921
- Other Identifier
- 991019168311804721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Mechanics