Finite-Element Predictions of Transient Elastic-Plastic Large Deflections of Stiffened and/or Unstiffened Rings and Cylindrical Shells
A solution procedure which employs the spatial finite-element method together with the temporal finite-difference method is presented for predicting transient elastic-plastic large-deflection responses of structures. Assume-displacement finite-element formulations have been developed in detail for a...
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| creator | Wu,Richard W.-H Witmer,Emmett A |
| description | A solution procedure which employs the spatial finite-element method together with the temporal finite-difference method is presented for predicting transient elastic-plastic large-deflection responses of structures. Assume-displacement finite-element formulations have been developed in detail for arbitrarily-curved-beam elements and quadrilateral cylindrical-panel elements; specializations to represent straight-beam and flat-plate elements are included. Emphasis has been given to account for geometric stiffeners as well as variable thickness, multilayer, multi-material construction. With the aid of a breadboard computer program, the procedure has been used to predict the transient elastic-plastic large-deflection responses of impulsively-loaded single-layer, singele-material unstiffened and stiffened rings and cylindrical panels for which high quality experimental data and/or independent predictions exist. The feasibility of developing a combined finite-element and finite-difference procedure to represent spatial quantities in structural analysis has been examined in a preliminary fashion. (Modified author abstract) |
| format | Report |
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Assume-displacement finite-element formulations have been developed in detail for arbitrarily-curved-beam elements and quadrilateral cylindrical-panel elements; specializations to represent straight-beam and flat-plate elements are included. Emphasis has been given to account for geometric stiffeners as well as variable thickness, multilayer, multi-material construction. With the aid of a breadboard computer program, the procedure has been used to predict the transient elastic-plastic large-deflection responses of impulsively-loaded single-layer, singele-material unstiffened and stiffened rings and cylindrical panels for which high quality experimental data and/or independent predictions exist. The feasibility of developing a combined finite-element and finite-difference procedure to represent spatial quantities in structural analysis has been examined in a preliminary fashion. (Modified author abstract)</description><language>eng</language><subject>Blast ; Cylindrical bodies ; Cylindrical shells ; Elastic properties ; Explosion effects ; Explosions ; Finite element analysis ; Impulse loading ; Mechanics ; Plastic properties ; Rings ; Shells(Structural forms) ; Stiffened cylinders ; Transients</subject><creationdate>1974</creationdate><rights>APPROVED FOR PUBLIC RELEASE</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,776,881,27544,27545</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/AD0779453$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Wu,Richard W.-H</creatorcontrib><creatorcontrib>Witmer,Emmett A</creatorcontrib><creatorcontrib>MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB</creatorcontrib><title>Finite-Element Predictions of Transient Elastic-Plastic Large Deflections of Stiffened and/or Unstiffened Rings and Cylindrical Shells</title><description>A solution procedure which employs the spatial finite-element method together with the temporal finite-difference method is presented for predicting transient elastic-plastic large-deflection responses of structures. 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(Modified author abstract)</description><subject>Blast</subject><subject>Cylindrical bodies</subject><subject>Cylindrical shells</subject><subject>Elastic properties</subject><subject>Explosion effects</subject><subject>Explosions</subject><subject>Finite element analysis</subject><subject>Impulse loading</subject><subject>Mechanics</subject><subject>Plastic properties</subject><subject>Rings</subject><subject>Shells(Structural forms)</subject><subject>Stiffened cylinders</subject><subject>Transients</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1974</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNqFjT0KwkAQhdNYiHoDi7lAUIgSLCU_WFgEE-uwZGfjwDiBnW28gOc2QdHS6oP3Pd6bR8-ShALGBeMdJUDl0VIXaBCFwUHjjShNomCjgbq4ehPOxvcIOTrGX70O5BwKWjBiN4OHq-g3upD0OgnIHkxiPXWGob4hsy6jmTOsuPpwEa3LoslOsR2_2nFDMLTHfJumh90-Sf7oF-vSSAs</recordid><startdate>197404</startdate><enddate>197404</enddate><creator>Wu,Richard W.-H</creator><creator>Witmer,Emmett A</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>197404</creationdate><title>Finite-Element Predictions of Transient Elastic-Plastic Large Deflections of Stiffened and/or Unstiffened Rings and Cylindrical Shells</title><author>Wu,Richard W.-H ; Witmer,Emmett A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_AD07794533</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1974</creationdate><topic>Blast</topic><topic>Cylindrical bodies</topic><topic>Cylindrical shells</topic><topic>Elastic properties</topic><topic>Explosion effects</topic><topic>Explosions</topic><topic>Finite element analysis</topic><topic>Impulse loading</topic><topic>Mechanics</topic><topic>Plastic properties</topic><topic>Rings</topic><topic>Shells(Structural forms)</topic><topic>Stiffened cylinders</topic><topic>Transients</topic><toplevel>online_resources</toplevel><creatorcontrib>Wu,Richard W.-H</creatorcontrib><creatorcontrib>Witmer,Emmett A</creatorcontrib><creatorcontrib>MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Wu,Richard W.-H</au><au>Witmer,Emmett A</au><aucorp>MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Finite-Element Predictions of Transient Elastic-Plastic Large Deflections of Stiffened and/or Unstiffened Rings and Cylindrical Shells</btitle><date>1974-04</date><risdate>1974</risdate><abstract>A solution procedure which employs the spatial finite-element method together with the temporal finite-difference method is presented for predicting transient elastic-plastic large-deflection responses of structures. Assume-displacement finite-element formulations have been developed in detail for arbitrarily-curved-beam elements and quadrilateral cylindrical-panel elements; specializations to represent straight-beam and flat-plate elements are included. Emphasis has been given to account for geometric stiffeners as well as variable thickness, multilayer, multi-material construction. With the aid of a breadboard computer program, the procedure has been used to predict the transient elastic-plastic large-deflection responses of impulsively-loaded single-layer, singele-material unstiffened and stiffened rings and cylindrical panels for which high quality experimental data and/or independent predictions exist. The feasibility of developing a combined finite-element and finite-difference procedure to represent spatial quantities in structural analysis has been examined in a preliminary fashion. (Modified author abstract)</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | Blast Cylindrical bodies Cylindrical shells Elastic properties Explosion effects Explosions Finite element analysis Impulse loading Mechanics Plastic properties Rings Shells(Structural forms) Stiffened cylinders Transients |
| title | Finite-Element Predictions of Transient Elastic-Plastic Large Deflections of Stiffened and/or Unstiffened Rings and Cylindrical Shells |
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