Image-Based Inertial Impact Tests on an Aluminum Alloy

Dreuilhe, Sarah; Davis, Frances M.; Siviour, Clive R.; Pierron, Fabrice

doi:10.1007/978-3-319-41600-7_29

Cited by 3 publications

(6 citation statements)

References 7 publications

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“…The stress equations like Eq. 2, 3 and 4 can also be used in the non-linear Virtual Fields Method [18,22]. -They are limited to IBII-like configurations, in which only one specimen edge is loaded.…”

Section: Discussionmentioning

confidence: 99%

“…Finally, the resulting line plots are easy to read and have a form familiar to the experimental community used to uniaxial stressstrain curves. Obviously, the limitation is that if the material exhibits non-linear behaviour, these derivations will not hold any more and the full Virtual Fields Method will have to be employed, as in [18] for instance. However, the plots will show that the behaviour is not linear and as such, they remain a good diagnostics tool.…”

Section: Theoretical Derivationmentioning

confidence: 99%

“…The principle was first published in 2014 [9] on an elastically isotropic material. It was then refined and extended to several classes of materials under the name 'Image-Based Inertial Impact' (IBII) test [18][19][20][21]. This test consists of an edge-on impact of a thin rectangular test specimen with all other edges free from any constraints.…”

Section: Introductionmentioning

confidence: 99%

“…This sends a compression wave into the specimen which reflects off the free edge as a tensile wave. The pulse length can be designed either to load and unload the specimen in compression [9,18] or to develop enough tension after wave reflection so that tensile fracture occurs [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…In this new class of high strain rate tests, two main approaches have been used to identify the constitutive parameters. The first one is based on a full implementation of the Virtual Fields Method (VFM), with parametrized constitutive models [12,18,22]. The second one uses a reconstruction of the average longitudinal stress across a vertical section of the test specimen to build up stress-strain curves, employing rigid-body-like virtual fields in the VFM.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Generalized Stress–Strain Curves for IBII Tests on Isotropic and Orthotropic Materials

Pierron

Fletcher

2019

J. dynamic behavior mater.

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This article presents a particular use of the Virtual Fields Method to exploit the results of Image-Based Inertial Impact (IBII) tests. This test consists on an edge-on impact of a free-standing thin flat rectangular coupon. The specimen response is recorded using an ultra-high speed camera filming the deformation of a grid pattern printed at its surface. From these images, displacement fields are derived, from which strain and acceleration can be obtained. The Virtual Fields Method makes use of the acceleration fields to derive stress information. Until now, a very simple 'stress-gauge' approach was used that could only provide relevant stress-strain information if the test was predominantly uniaxial. The alternative was to use the full inverse approach with the Virtual Fields Method but this would not allow the same degree of data understanding as the 'stressgauge' approach. This article proposes an extension to this 'stress-gauge' approach for fully multiaxial tests. The equations are first derived and then validated using simulated and experimental IBII test data on isotropic and orthotropic materials.

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Section: Discussionmentioning

confidence: 99%

Section: Theoretical Derivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Generalized Stress–Strain Curves for IBII Tests on Isotropic and Orthotropic Materials

Pierron

Fletcher

2019

J. dynamic behavior mater.

Self Cite

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Evaluation of Low-Cycle Impact Fatigue Damage in CFRPs using the Virtual Fields Method

Mendoza

Graham

Matejunas

et al. 2023

J. dynamic behavior mater.

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Fracture mechanisms of polycrystalline advanced ceramics

Petrović¹,

Mešić²

2020

PEN

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Polycrystalline advanced ceramics are synthetic products produced by sintering together selected ceramics grains in a metal matrix serving as a binder. In order to be able to propose their optimization, achieving high performance cutting and leading to reduced operating costs and improved working environment, relevant fracture mechanisms involved in their failure need to be determined. In this work, experimental results of plane strain fracture toughness obtained earlier on single-edge-V-notched-beam specimens were supported with microscopy analysis. These findings establish a clear connection between the fracture toughness results and the fracture mechanisms visible on and beneath the fracture surfaces, revealing adiabatic conditions that occur at the crack tip during fracture.

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Image-Based Inertial Impact Tests on an Aluminum Alloy

Cited by 3 publications

References 7 publications

Generalized Stress–Strain Curves for IBII Tests on Isotropic and Orthotropic Materials

Generalized Stress–Strain Curves for IBII Tests on Isotropic and Orthotropic Materials

Evaluation of Low-Cycle Impact Fatigue Damage in CFRPs using the Virtual Fields Method

Fracture mechanisms of polycrystalline advanced ceramics

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