Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact
Marine composite materials typically exhibit significant rate dependent response characteristics when subjected to extreme dynamic loading conditions. In this work, a strain-rate dependent continuum damage model is incorporated with multicontinuum technology (MCT) to predict damage and failure progr...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2004-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2004/742085 |
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| _version_ | 1832562028210814976 |
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| author | James Lua Christopher T. Key Shane C. Schumacher Andrew C. Hansen |
| author_facet | James Lua Christopher T. Key Shane C. Schumacher Andrew C. Hansen |
| author_sort | James Lua |
| collection | DOAJ |
| description | Marine composite materials typically exhibit significant rate dependent response characteristics when subjected to extreme dynamic loading conditions. In this work, a strain-rate dependent continuum damage model is incorporated with multicontinuum technology (MCT) to predict damage and failure progression for composite material structures. MCT treats the constituents of a woven fabric composite as separate but linked continua, thereby allowing a designer to extract constituent stress/strain information in a structural analysis. The MCT algorithm and material damage model are numerically implemented with the explicit finite element code LS-DYNA3D via a user-defined material model (umat). The effects of the strain-rate hardening model are demonstrated through both simple single element analyses for woven fabric composites and also structural level impact simulations of a composite panel subjected to various impact conditions. Progressive damage at the constituent level is monitored throughout the loading. The results qualitatively illustrate the value of rate dependent material models for marine composite materials under extreme dynamic loading conditions. |
| format | Article |
| id | doaj-art-0bec195384de45159666d1b720ea2ae9 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-0bec195384de45159666d1b720ea2ae92025-02-03T01:23:31ZengWileyShock and Vibration1070-96221875-92032004-01-0111210311710.1155/2004/742085Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic ImpactJames Lua0Christopher T. Key1Shane C. Schumacher2Andrew C. Hansen3Applied Mechanics Department, System Engineering Group Anteon Corporation, Mystic, CT, USAApplied Mechanics Department, System Engineering Group Anteon Corporation, Mystic, CT, USADepartment of Mechanical Engineering, University of Wyoming, Laramie, Wyoming 82071, USADepartment of Mechanical Engineering, University of Wyoming, Laramie, Wyoming 82071, USAMarine composite materials typically exhibit significant rate dependent response characteristics when subjected to extreme dynamic loading conditions. In this work, a strain-rate dependent continuum damage model is incorporated with multicontinuum technology (MCT) to predict damage and failure progression for composite material structures. MCT treats the constituents of a woven fabric composite as separate but linked continua, thereby allowing a designer to extract constituent stress/strain information in a structural analysis. The MCT algorithm and material damage model are numerically implemented with the explicit finite element code LS-DYNA3D via a user-defined material model (umat). The effects of the strain-rate hardening model are demonstrated through both simple single element analyses for woven fabric composites and also structural level impact simulations of a composite panel subjected to various impact conditions. Progressive damage at the constituent level is monitored throughout the loading. The results qualitatively illustrate the value of rate dependent material models for marine composite materials under extreme dynamic loading conditions.http://dx.doi.org/10.1155/2004/742085 |
| spellingShingle | James Lua Christopher T. Key Shane C. Schumacher Andrew C. Hansen Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact Shock and Vibration |
| title | Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact |
| title_full | Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact |
| title_fullStr | Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact |
| title_full_unstemmed | Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact |
| title_short | Rate Dependent Multicontinuum Progressive Failure Analysis of Woven Fabric Composite Structures under Dynamic Impact |
| title_sort | rate dependent multicontinuum progressive failure analysis of woven fabric composite structures under dynamic impact |
| url | http://dx.doi.org/10.1155/2004/742085 |
| work_keys_str_mv | AT jameslua ratedependentmulticontinuumprogressivefailureanalysisofwovenfabriccompositestructuresunderdynamicimpact AT christophertkey ratedependentmulticontinuumprogressivefailureanalysisofwovenfabriccompositestructuresunderdynamicimpact AT shanecschumacher ratedependentmulticontinuumprogressivefailureanalysisofwovenfabriccompositestructuresunderdynamicimpact AT andrewchansen ratedependentmulticontinuumprogressivefailureanalysisofwovenfabriccompositestructuresunderdynamicimpact |