A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analysis of force generated in composite egg-box structures during draping as a function of draping angle
https://orcid.org/0000-0002-3621-1788
Highlights Accurate draping simulation technique for fabric prepregs is introduced. Non-orthogonal constitutive VUMAT code and composite lay-up model was used. Bending and laminate thickness were considered during the draping simulation. Distortion energy was used for explaining catastrophic behavior of fabric prepregs.
Abstract To closely investigate the correlation between the structural shape and forces generated along yarns, draping simulation was performed using a non-orthogonal constitutive equation programmed by a VUMAT code and a composite lay-up model considering the draping angle (0°, 15°, 30°, 45°) and the actual thickness of the prepregs. Force generation at seven representative points (RP) along the two major axes (sidewall and saddle) of the unit cell structure was studied during draping. Representative deformations, including wrinkle generation, of the fabric prepregs during draping were correlated to the generated forces. To estimate the onset of wrinkle generation of the draped structure for any draping angle cases, the distortion energy which was calculated using the yarn force and shear angle of a simple square FE model was used. Moreover, draping experiments were conducted to verify the deformation characteristics estimated by finite element analysis.
Analysis of force generated in composite egg-box structures during draping as a function of draping angle
https://orcid.org/0000-0002-3621-1788
Highlights Accurate draping simulation technique for fabric prepregs is introduced. Non-orthogonal constitutive VUMAT code and composite lay-up model was used. Bending and laminate thickness were considered during the draping simulation. Distortion energy was used for explaining catastrophic behavior of fabric prepregs.
Abstract To closely investigate the correlation between the structural shape and forces generated along yarns, draping simulation was performed using a non-orthogonal constitutive equation programmed by a VUMAT code and a composite lay-up model considering the draping angle (0°, 15°, 30°, 45°) and the actual thickness of the prepregs. Force generation at seven representative points (RP) along the two major axes (sidewall and saddle) of the unit cell structure was studied during draping. Representative deformations, including wrinkle generation, of the fabric prepregs during draping were correlated to the generated forces. To estimate the onset of wrinkle generation of the draped structure for any draping angle cases, the distortion energy which was calculated using the yarn force and shear angle of a simple square FE model was used. Moreover, draping experiments were conducted to verify the deformation characteristics estimated by finite element analysis.
Analysis of force generated in composite egg-box structures during draping as a function of draping angle
https://orcid.org/0000-0002-3621-1788
Highlights Accurate draping simulation technique for fabric prepregs is introduced. Non-orthogonal constitutive VUMAT code and composite lay-up model was used. Bending and laminate thickness were considered during the draping simulation. Distortion energy was used for explaining catastrophic behavior of fabric prepregs.
Abstract To closely investigate the correlation between the structural shape and forces generated along yarns, draping simulation was performed using a non-orthogonal constitutive equation programmed by a VUMAT code and a composite lay-up model considering the draping angle (0°, 15°, 30°, 45°) and the actual thickness of the prepregs. Force generation at seven representative points (RP) along the two major axes (sidewall and saddle) of the unit cell structure was studied during draping. Representative deformations, including wrinkle generation, of the fabric prepregs during draping were correlated to the generated forces. To estimate the onset of wrinkle generation of the draped structure for any draping angle cases, the distortion energy which was calculated using the yarn force and shear angle of a simple square FE model was used. Moreover, draping experiments were conducted to verify the deformation characteristics estimated by finite element analysis.
Analysis of force generated in composite egg-box structures during draping as a function of draping angle
Che, Jia-le (author) / Chang, Seung-Hwan (author)
Thin-Walled Structures ; 193
2023-09-20
Article (Journal)
Electronic Resource
English
Draping technology and the applicability analysis
| British Library Online Contents | 2006
Simulation of fabric draping shape
| British Library Online Contents | 2010
Analysis on applicability of draping
| British Library Online Contents | 2010
Development of draping specific ease model
| British Library Online Contents | 2011
Cost/weight optimization of composite prepreg structures for best draping strategy
| British Library Online Contents | 2010