Reduced order modeling of soft-body impact on glass panels
(2022) In Engineering Structures 256.- Abstract
In the paper, strategies for reduced order modeling of glass panels subjected to soft-body impact are developed by means of dynamic substructuring. The aim is to obtain accurate and computationally efficient models for prediction of the pre-failure elastic response. More specifically, a reduction basis for the subsystem representing the glass panel is established using correction modes, being fixed-interface component modes that considers loading on the substructure boundary. The soft-body impactor is effectively modeled by a nonlinear single-degree-of-freedom system, calibrated by experimental data. Furthermore, a simplified and computationally efficient modeling approach is proposed for the contact interaction between the glass panel... (More)
In the paper, strategies for reduced order modeling of glass panels subjected to soft-body impact are developed by means of dynamic substructuring. The aim is to obtain accurate and computationally efficient models for prediction of the pre-failure elastic response. More specifically, a reduction basis for the subsystem representing the glass panel is established using correction modes, being fixed-interface component modes that considers loading on the substructure boundary. The soft-body impactor is effectively modeled by a nonlinear single-degree-of-freedom system, calibrated by experimental data. Furthermore, a simplified and computationally efficient modeling approach is proposed for the contact interaction between the glass panel and the impact body. An experimental campaign was carried out to validate the developed models. In particular, the glass strain was measured on simply supported monolithic glass panels subjected to soft-body impact. Additional impact tests were performed to determine the dynamic characteristics of the impactor. Moreover, a detailed numerical reference model was developed to evaluate the discrepancy between the experimental tests and the results provided by the reduced order models. The developed models show good agreement with the experimental results. For the studied load cases, it is shown that an accurate prediction of the pre-failure glass strain can be obtained by systems including only a few generalized degrees-of-freedom.
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- author
- Andersson, Linus LU ; Kozłowski, Marcin LU ; Persson, Peter LU ; Austrell, Per Erik LU and Persson, Kent LU
- organization
- publishing date
- 2022-04-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Damping, Dynamic substructuring, Finite element analysis, Impact testing, Reduced order model, Soft-body impact, Structural glass
- in
- Engineering Structures
- volume
- 256
- article number
- 113988
- publisher
- Elsevier
- external identifiers
-
- scopus:85125136552
- ISSN
- 0141-0296
- DOI
- 10.1016/j.engstruct.2022.113988
- project
- Reduced Order Modeling and Substructuring - Applications in Nonlinear Structural Dynamics
- language
- English
- LU publication?
- yes
- id
- c1514ce9-f706-425c-8fda-8c0627fe6d42
- date added to LUP
- 2022-04-20 12:16:02
- date last changed
- 2024-03-10 15:07:42
@article{c1514ce9-f706-425c-8fda-8c0627fe6d42,
abstract = {{<p>In the paper, strategies for reduced order modeling of glass panels subjected to soft-body impact are developed by means of dynamic substructuring. The aim is to obtain accurate and computationally efficient models for prediction of the pre-failure elastic response. More specifically, a reduction basis for the subsystem representing the glass panel is established using correction modes, being fixed-interface component modes that considers loading on the substructure boundary. The soft-body impactor is effectively modeled by a nonlinear single-degree-of-freedom system, calibrated by experimental data. Furthermore, a simplified and computationally efficient modeling approach is proposed for the contact interaction between the glass panel and the impact body. An experimental campaign was carried out to validate the developed models. In particular, the glass strain was measured on simply supported monolithic glass panels subjected to soft-body impact. Additional impact tests were performed to determine the dynamic characteristics of the impactor. Moreover, a detailed numerical reference model was developed to evaluate the discrepancy between the experimental tests and the results provided by the reduced order models. The developed models show good agreement with the experimental results. For the studied load cases, it is shown that an accurate prediction of the pre-failure glass strain can be obtained by systems including only a few generalized degrees-of-freedom.</p>}},
author = {{Andersson, Linus and Kozłowski, Marcin and Persson, Peter and Austrell, Per Erik and Persson, Kent}},
issn = {{0141-0296}},
keywords = {{Damping; Dynamic substructuring; Finite element analysis; Impact testing; Reduced order model; Soft-body impact; Structural glass}},
language = {{eng}},
month = {{04}},
publisher = {{Elsevier}},
series = {{Engineering Structures}},
title = {{Reduced order modeling of soft-body impact on glass panels}},
url = {{http://dx.doi.org/10.1016/j.engstruct.2022.113988}},
doi = {{10.1016/j.engstruct.2022.113988}},
volume = {{256}},
year = {{2022}},
}