NUMERICAL SIMULATION OF ANISOTROPIC POLYMERIC FOAMS
Keywords:
POLYMERIC FOAMS, ANISOTROPY, PARAMETERS CALIBRATION, MATERIAL MODELSAbstract
<!-- /* FONT DEFINITIONS */ @FONT-FACE {FONT-FAMILY:"CAMBRIA MATH"; PANOSE-1:2 4 5 3 5 4 6 3 2 4; MSO-FONT-CHARSET:0; MSO-GENERIC-FONT-FAMILY:ROMAN; MSO-FONT-PITCH:VARIABLE; MSO-FONT-SIGNATURE:-1610611985 1107304683 0 0 159 0;} @FONT-FACE {FONT-FAMILY:CALIBRI; PANOSE-1:2 15 5 2 2 2 4 3 2 4; MSO-FONT-CHARSET:0; MSO-GENERIC-FONT-FAMILY:SWISS; MSO-FONT-PITCH:VARIABLE; MSO-FONT-SIGNATURE:-1610611985 1073750139 0 0 159 0;} /* STYLE DEFINITIONS */ P.MSONORMAL, LI.MSONORMAL, DIV.MSONORMAL {MSO-STYLE-UNHIDE:NO; MSO-STYLE-QFORMAT:YES; MSO-STYLE-PARENT:""; MARGIN:0CM; MARGIN-BOTTOM:.0001PT; MSO-PAGINATION:WIDOW-ORPHAN; FONT-SIZE:12.0PT; MSO-BIDI-FONT-SIZE:11.0PT; FONT-FAMILY:"ARIAL","SANS-SERIF"; MSO-FAREAST-FONT-FAMILY:CALIBRI; MSO-BIDI-FONT-FAMILY:"TIMES NEW ROMAN"; MSO-FAREAST-LANGUAGE:EN-US;} .MSOCHPDEFAULT {MSO-STYLE-TYPE:EXPORT-ONLY; MSO-DEFAULT-PROPS:YES; FONT-SIZE:10.0PT; MSO-ANSI-FONT-SIZE:10.0PT; MSO-BIDI-FONT-SIZE:10.0PT; MSO-ASCII-FONT-FAMILY:CALIBRI; MSO-FAREAST-FONT-FAMILY:CALIBRI; MSO-HANSI-FONT-FAMILY:CALIBRI;} @PAGE WORDSECTION1 {SIZE:612.0PT 792.0PT; MARGIN:70.85PT 3.0CM 70.85PT 3.0CM; MSO-HEADER-MARGIN:36.0PT; MSO-FOOTER-MARGIN:36.0PT; MSO-PAPER-SOURCE:0;} DIV.WORDSECTION1 {PAGE:WORDSECTION1;} --> THIS PAPER SHOWS IN DETAIL THE MODELING OF ANISOTROPIC POLYMERIC FOAM UNDER COMPRESSION AND TENSION LOADINGS, INCLUDING DISCUSSIONS ABOUT ISOTROPIC MATERIAL MODELS AND THE ENTIRE PROCEDURE PROPOSAL TO CALIBRATE THE PARAMETERS INVOLVED. FIRSTLY, SPECIMENS OF POLY(VINYL CHLORIDE) (PVC) FOAM WERE INVESTIGATED THROUGH EXPERIMENTAL ANALYSES IN ORDER TO UNDERSTAND THE MECHANICAL BEHAVIOR OF THIS ANISOTROPIC MATERIAL. SECONDLY, IT WAS USED ISOTROPIC MATERIAL MODELS IMPLEMENTED IN THE COMMERCIAL SOFTWARE ABAQUSTM, WHICH PRESENT LIMITATIONS TO SIMULATE THE MECHANICAL BEHAVIOR OF PVC FOAM, BUT THEY CAN BE MINIMIZED OR EVEN OVERCOME WITH A FINE PARAMETERS CALIBRATION. THUS, MATERIAL MODEL PARAMETERS AND HARDENING CURVES ARE IDENTIFIED BY THREE OR FIVE EXPERIMENTAL TESTS. HOWEVER, IT IS POSSIBLE TO CALCULATE DIFFERENT VALUES FOR THE SAME PARAMETER, DUE TO THE ANISOTROPIC RESPONSE OF THE MATERIAL. AFTER THAT, THE SET OF PARAMETERS OBTAINED ARE CALIBRATED, USING EXPERIMENTAL AND NUMERICAL ANALYSES ACCORDING TO THE APPLICATION TYPE OF THE MATERIAL. EVEN THOUGH THE CALIBRATION PROPOSAL IS APPLIED FOR PVC FOAM, IT STILL OUTLINES A VERY BROAD DRILL TO ANALYZE OTHER ANISOTROPIC CELLULAR MATERIALS.Downloads
Published
2012-06-30
Issue
Section
Articles
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY] that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).