---
_id: '36335'
abstract:
- lang: eng
text: Transformation of Fe- and Cu-rich primary phase particles was studied in an
Al-Li-based alloy prepared by twin-roll casting. Thin foils for combined STEM
and SEM experiments were prepared by electrolytic twin-jet polishing. They were
in-situ heated in a TEM heating stage and observed at 200 kV in the JEOL JEM 2200FS
electron microscope equipped with STEM HAADF and BF detectors and SEM BSE and
SE detectors working both in composition and topographic modes. The resulting
structures were combined with EDS mapping performed directly in the heating holder.
Dissolution and transformation of Cu- and Fe-rich particles occur above 500 °C.
EDS maps acquired on the foil cooled down to room temperature show that Cu and
Fe are both still present in newly formed particles, most likely indicating the
presence of the Al7Cu2Fe phase.
author:
- first_name: Miroslav
full_name: CIESLAR, Miroslav
last_name: CIESLAR
- first_name: Barbora
full_name: KŘIVSKÁ, Barbora
last_name: KŘIVSKÁ
- first_name: Rostislav
full_name: KRÁLÍK, Rostislav
last_name: KRÁLÍK
- first_name: Lucia
full_name: BAJTOŠOVÁ, Lucia
last_name: BAJTOŠOVÁ
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Mykhailo
full_name: STOLBCHENKO, Mykhailo
last_name: STOLBCHENKO
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: 'CIESLAR M, KŘIVSKÁ B, KRÁLÍK R, et al. HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED
ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY. In: METAL 2022 Conference Proeedings.
TANGER Ltd.; 2022. doi:10.37904/metal.2022.4438'
apa: CIESLAR, M., KŘIVSKÁ, B., KRÁLÍK, R., BAJTOŠOVÁ, L., Grydin, O., STOLBCHENKO,
M., & Schaper, M. (2022). HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY
STUDIED BY IN-SITU ELECTRON MICROSCOPY. METAL 2022 Conference Proeedings.
Metal 2022, Brno. https://doi.org/10.37904/metal.2022.4438
bibtex: '@inproceedings{CIESLAR_KŘIVSKÁ_KRÁLÍK_BAJTOŠOVÁ_Grydin_STOLBCHENKO_Schaper_2022,
title={HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON
MICROSCOPY}, DOI={10.37904/metal.2022.4438},
booktitle={METAL 2022 Conference Proeedings}, publisher={TANGER Ltd.}, author={CIESLAR,
Miroslav and KŘIVSKÁ, Barbora and KRÁLÍK, Rostislav and BAJTOŠOVÁ, Lucia and Grydin,
Olexandr and STOLBCHENKO, Mykhailo and Schaper, Mirko}, year={2022} }'
chicago: CIESLAR, Miroslav, Barbora KŘIVSKÁ, Rostislav KRÁLÍK, Lucia BAJTOŠOVÁ,
Olexandr Grydin, Mykhailo STOLBCHENKO, and Mirko Schaper. “HOMOGENIZATION OF TWIN-ROLL
CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY.” In METAL 2022
Conference Proeedings. TANGER Ltd., 2022. https://doi.org/10.37904/metal.2022.4438.
ieee: 'M. CIESLAR et al., “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY
STUDIED BY IN-SITU ELECTRON MICROSCOPY,” presented at the Metal 2022, Brno, 2022,
doi: 10.37904/metal.2022.4438.'
mla: CIESLAR, Miroslav, et al. “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY
STUDIED BY IN-SITU ELECTRON MICROSCOPY.” METAL 2022 Conference Proeedings,
TANGER Ltd., 2022, doi:10.37904/metal.2022.4438.
short: 'M. CIESLAR, B. KŘIVSKÁ, R. KRÁLÍK, L. BAJTOŠOVÁ, O. Grydin, M. STOLBCHENKO,
M. Schaper, in: METAL 2022 Conference Proeedings, TANGER Ltd., 2022.'
conference:
end_date: 2022-05-19
location: Brno
name: Metal 2022
start_date: 2022-05-18
date_created: 2023-01-12T09:39:41Z
date_updated: 2023-01-12T09:44:17Z
department:
- _id: '158'
- _id: '321'
doi: 10.37904/metal.2022.4438
keyword:
- Al-Li-based alloy
- in-situ TEM
- homogenization
- phase transformation
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.confer.cz/metal/2022/4438-homogenization-of-twin-roll-cast-al-li-based-alloy-studied-by-in-situ-electron-microscopy
oa: '1'
publication: METAL 2022 Conference Proeedings
publication_identifier:
issn:
- 2694-9296
publication_status: published
publisher: TANGER Ltd.
status: public
title: HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON
MICROSCOPY
type: conference
user_id: '43822'
year: '2022'
...
---
_id: '21442'
author:
- first_name: Steffen Rainer
full_name: Tinkloh, Steffen Rainer
id: '72722'
last_name: Tinkloh
- first_name: Tao
full_name: Wu, Tao
last_name: Wu
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: Thomas
full_name: Niendorf, Thomas
last_name: Niendorf
citation:
ama: 'Tinkloh SR, Wu T, Tröster T, Niendorf T. Development of a submodel technique
for FFT-based solvers in micromechanical analysis. In: ; 2021.'
apa: Tinkloh, S. R., Wu, T., Tröster, T., & Niendorf, T. (2021). Development
of a submodel technique for FFT-based solvers in micromechanical analysis. Presented
at the 2nd International Conference on Theoretical, Analytical and Computational
Methods for Composite Materials and Composite Structures (online).
bibtex: '@inproceedings{Tinkloh_Wu_Tröster_Niendorf_2021, title={Development of
a submodel technique for FFT-based solvers in micromechanical analysis}, author={Tinkloh,
Steffen Rainer and Wu, Tao and Tröster, Thomas and Niendorf, Thomas}, year={2021}
}'
chicago: Tinkloh, Steffen Rainer, Tao Wu, Thomas Tröster, and Thomas Niendorf. “Development
of a Submodel Technique for FFT-Based Solvers in Micromechanical Analysis,” 2021.
ieee: S. R. Tinkloh, T. Wu, T. Tröster, and T. Niendorf, “Development of a submodel
technique for FFT-based solvers in micromechanical analysis,” presented at the
2nd International Conference on Theoretical, Analytical and Computational Methods
for Composite Materials and Composite Structures (online), 2021.
mla: Tinkloh, Steffen Rainer, et al. Development of a Submodel Technique for
FFT-Based Solvers in Micromechanical Analysis. 2021.
short: 'S.R. Tinkloh, T. Wu, T. Tröster, T. Niendorf, in: 2021.'
conference:
end_date: 2021-03-07
name: 2nd International Conference on Theoretical, Analytical and Computational
Methods for Composite Materials and Composite Structures (online)
start_date: 2021-03-05
date_created: 2021-03-11T09:29:55Z
date_updated: 2022-01-06T06:54:59Z
ddc:
- '620'
department:
- _id: '9'
- _id: '321'
- _id: '149'
keyword:
- Micromechanics
- Fast Fourier Transform (FFT)
- Reduced Order Modelling
- Homogenization
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
status: public
title: Development of a submodel technique for FFT-based solvers in micromechanical
analysis
type: conference_abstract
user_id: '72722'
year: '2021'
...
---
_id: '23431'
abstract:
- lang: eng
text: As an effective and accurate method for modelling composite materials, mean-field
homogenization is still not well studied in modelling non-linear and damage behaviours
of UD composites. Investigated micro FE-simulations show that the matrix of UD
composites exhibits different average plastic behaviour, named as average asymmetric
matrix plasticity (AAMP), when the composite behaves different under shear, longitudinal
and transverse loadings. In this study, a non-linear mean-field debonding model
(NMFDM) combining a mean-field model and a fibre–matrix interface debonding model,
is developed to simulate UD composites under consideration of AAMP, fibre–matrix
interface damage and progressive failure. AAMP is considered by using so-called
stress mode factor, which is expressed in terms of basic invariants of the matrix
deviatoric stress tensor and is used as an indicator for detection of differences
in the loading mode. The material behaviour of UD composites with imperfect interface
is assumed identical as for perfect interface and stiffness reduced fibres. Progressive
failure criteria are established with consideration of fibre breakage and matrix
crack for different fibre orientations. As a representative example for the NMFDM,
a C30/E201 UD composite is studied. To verify the model, experiments are conducted
on polymers, carbon fibres and UD CFRPs. Finally, the model is applied to simulate
a perforated CFRP laminate, which shows excellent prediction ability on deformation,
debonding and progressive failure.
article_number: '109209'
author:
- first_name: C.
full_name: Cheng, C.
last_name: Cheng
- first_name: Z.
full_name: Wang, Z.
last_name: Wang
- first_name: Z.
full_name: Jin, Z.
last_name: Jin
- first_name: X.
full_name: Ju, X.
last_name: Ju
- first_name: Swetlana
full_name: Schweizer, Swetlana
id: '8938'
last_name: Schweizer
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: Rolf
full_name: Mahnken, Rolf
id: '335'
last_name: Mahnken
citation:
ama: 'Cheng C, Wang Z, Jin Z, et al. Non-linear mean-field modelling of UD composite
laminates accounting for average asymmetric plasticity of the matrix, debonding
and progressive failure. Composites Part B: Engineering. 2021;224. doi:10.1016/j.compositesb.2021.109209'
apa: 'Cheng, C., Wang, Z., Jin, Z., Ju, X., Schweizer, S., Tröster, T., & Mahnken,
R. (2021). Non-linear mean-field modelling of UD composite laminates accounting
for average asymmetric plasticity of the matrix, debonding and progressive failure.
Composites Part B: Engineering, 224, Article 109209. https://doi.org/10.1016/j.compositesb.2021.109209'
bibtex: '@article{Cheng_Wang_Jin_Ju_Schweizer_Tröster_Mahnken_2021, title={Non-linear
mean-field modelling of UD composite laminates accounting for average asymmetric
plasticity of the matrix, debonding and progressive failure}, volume={224}, DOI={10.1016/j.compositesb.2021.109209},
number={109209}, journal={Composites Part B: Engineering}, author={Cheng, C. and
Wang, Z. and Jin, Z. and Ju, X. and Schweizer, Swetlana and Tröster, Thomas and
Mahnken, Rolf}, year={2021} }'
chicago: 'Cheng, C., Z. Wang, Z. Jin, X. Ju, Swetlana Schweizer, Thomas Tröster,
and Rolf Mahnken. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting
for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.”
Composites Part B: Engineering 224 (2021). https://doi.org/10.1016/j.compositesb.2021.109209.'
ieee: 'C. Cheng et al., “Non-linear mean-field modelling of UD composite
laminates accounting for average asymmetric plasticity of the matrix, debonding
and progressive failure,” Composites Part B: Engineering, vol. 224, Art.
no. 109209, 2021, doi: 10.1016/j.compositesb.2021.109209.'
mla: 'Cheng, C., et al. “Non-Linear Mean-Field Modelling of UD Composite Laminates
Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive
Failure.” Composites Part B: Engineering, vol. 224, 109209, 2021, doi:10.1016/j.compositesb.2021.109209.'
short: 'C. Cheng, Z. Wang, Z. Jin, X. Ju, S. Schweizer, T. Tröster, R. Mahnken,
Composites Part B: Engineering 224 (2021).'
date_created: 2021-08-18T06:20:21Z
date_updated: 2025-06-06T08:08:32Z
department:
- _id: '9'
- _id: '154'
- _id: '321'
- _id: '149'
doi: 10.1016/j.compositesb.2021.109209
intvolume: ' 224'
keyword:
- Non-linear mean-field homogenization Average asymmetric plasticity of matrix Fibre–matrix
interface debonding Micro-mechanical FE-simulation Progressive failure
language:
- iso: eng
publication: 'Composites Part B: Engineering'
publication_identifier:
issn:
- 1359-8368
publication_status: published
quality_controlled: '1'
status: public
title: Non-linear mean-field modelling of UD composite laminates accounting for average
asymmetric plasticity of the matrix, debonding and progressive failure
type: journal_article
user_id: '15952'
volume: 224
year: '2021'
...