Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading
A theoretical approach was developed for predicting the plastic deformation of a cylindrical shell subject to asymmetric dynamic loads. The plastic deformation of the leading generator of the shell is found by solving for the transverse deflections of a rigid-plastic beam/string-on-foundation. The a...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
1996-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1996-3303 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832568253123133440 |
|---|---|
| author | Michelle S. Hoo Fatt Tomasz Wierzbicki Minos Moussouros John Koenig |
| author_facet | Michelle S. Hoo Fatt Tomasz Wierzbicki Minos Moussouros John Koenig |
| author_sort | Michelle S. Hoo Fatt |
| collection | DOAJ |
| description | A theoretical approach was developed for predicting the plastic deformation of a cylindrical shell subject to asymmetric dynamic loads. The plastic deformation of the leading generator of the shell is found by solving for the transverse deflections of a rigid-plastic beam/string-on-foundation. The axial bending moment and tensile force in the beam/string are equivalent to the longitudinal bending moments and membrane forces of the shell, while the plastic foundation force is equivalent to the shell circumferential bending moment and membrane resistances. Closed-form solutions for the transient and final deformation profile of an impulsive loaded shell when it is in a “string” state were derived using the eigenfunction expansion method. These results were compared to DYNA 3D predictions. The analytical predictions of the transient shell and final centerline deflections were within 25% of the DYNA 3D results. |
| format | Article |
| id | doaj-art-e2dfc23748114783900740be3332eebb |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1996-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e2dfc23748114783900740be3332eebb2025-02-03T00:59:29ZengWileyShock and Vibration1070-96221875-92031996-01-013316918110.3233/SAV-1996-3303Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic LoadingMichelle S. Hoo Fatt0Tomasz Wierzbicki1Minos Moussouros2John Koenig3Department of Ocean Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USADepartment of Ocean Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USANaval Surface Warefare Center, Indian Head Division, Silver Spring, MD, USANaval Surface Warefare Center, Indian Head Division, Silver Spring, MD, USAA theoretical approach was developed for predicting the plastic deformation of a cylindrical shell subject to asymmetric dynamic loads. The plastic deformation of the leading generator of the shell is found by solving for the transverse deflections of a rigid-plastic beam/string-on-foundation. The axial bending moment and tensile force in the beam/string are equivalent to the longitudinal bending moments and membrane forces of the shell, while the plastic foundation force is equivalent to the shell circumferential bending moment and membrane resistances. Closed-form solutions for the transient and final deformation profile of an impulsive loaded shell when it is in a “string” state were derived using the eigenfunction expansion method. These results were compared to DYNA 3D predictions. The analytical predictions of the transient shell and final centerline deflections were within 25% of the DYNA 3D results.http://dx.doi.org/10.3233/SAV-1996-3303 |
| spellingShingle | Michelle S. Hoo Fatt Tomasz Wierzbicki Minos Moussouros John Koenig Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading Shock and Vibration |
| title | Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading |
| title_full | Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading |
| title_fullStr | Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading |
| title_full_unstemmed | Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading |
| title_short | Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading |
| title_sort | rigid plastic approximations for predicting plastic deformation of cylindrical shells subject to dynamic loading |
| url | http://dx.doi.org/10.3233/SAV-1996-3303 |
| work_keys_str_mv | AT michelleshoofatt rigidplasticapproximationsforpredictingplasticdeformationofcylindricalshellssubjecttodynamicloading AT tomaszwierzbicki rigidplasticapproximationsforpredictingplasticdeformationofcylindricalshellssubjecttodynamicloading AT minosmoussouros rigidplasticapproximationsforpredictingplasticdeformationofcylindricalshellssubjecttodynamicloading AT johnkoenig rigidplasticapproximationsforpredictingplasticdeformationofcylindricalshellssubjecttodynamicloading |