본문

서브메뉴

An Integrated Constitutive Modeling Approach to Predicting Deformation Response of Dry Fabrics and Prepregs Under Processing Conditions
An Integrated Constitutive Modeling Approach to Predicting Deformation Response of Dry Fab...
An Integrated Constitutive Modeling Approach to Predicting Deformation Response of Dry Fabrics and Prepregs Under Processing Conditions

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211151408
ISBN  
9798342104524
DDC  
600
저자명  
Wei, Qingxuan.
서명/저자  
An Integrated Constitutive Modeling Approach to Predicting Deformation Response of Dry Fabrics and Prepregs Under Processing Conditions
발행사항  
[Sl] : Purdue University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
139 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
주기사항  
Advisor: Zhang, Dianyun.
학위논문주기  
Thesis (Ph.D.)--Purdue University, 2024.
초록/해제  
요약Defects in composite manufacturing often lead to compromised structural integrity and reduced performance of the final product. A robust constitutive modeling framework is needed to efficiently and accurately predict the deformation responses of dry fabrics and pre-impregnated fibers, paving the way for defect simulation. This thesis presents a comprehensive study on the development and application of a novel constitutive model of fabric preforms and pre-impregnated fibers during composite manufacturing processes.This work proposes an integrated constitutive study for textile fabrics in the aspects of mesoscale tow and macroscale fabric behavior. First, a textile architecture-based discrete modeling approach was developed to predict and visualize fiber tow and fabric deformation. The fabrics consist of interlacing virtual fiber tows which are represented by Timoshenko beams joined by translational and rotational springs and rotary dashpots, which are used to capture the energy dissipation during in-plane shear deformation. Second, an anisotropic hyper-viscoelastic model was developed using the strain energy density function of a homogenized unit cell to predict the fabric deformation as a continuous field. A Maxwell model consisting of one Maxwell element and an additional spring is used to consider the nonequilibrium stresses generated during in-plane shear, transverse shear, and through-thickness compaction deformations. Both approaches were experimentally characterized and applied to a hemisphere draping model in the commercial Finite Element Analysis (FEA) software, Abaqus, to demonstrate the predictive capabilities.Then, the robust hyper-viscoelastic model is extended to predict prepreg compaction and bending behavior. In the compaction aspect, a coupling term of energy that captures the effect of squeezing flow and a highly nonlinear transverse compression energy are proposed to predict the compaction response of prepreg with liquid and rubbery resin. The viscoelastic parameters were characterized by a Computational Fluid Dynamics (CFD) model for liquid resin and a discrete micromechanics model for rubbery resin. The method was applied to stepwise compaction simulation at different temperatures in Abaqus and compared to experiments for validation. In the bending aspect, the effective shear modulus is expressed as a function of the second-order gradient of deformation. Modeling parameters were characterized by an analytical model that captures the underlying fiber and matrix deformation mechanism. Parametric study was conducted to illustrate the influence of each parameter and the capability to enhance the accuracy of bending prediction.
일반주제명  
Friction
일반주제명  
Behavior
일반주제명  
Shear tests
일반주제명  
Permeability
일반주제명  
Carbon
일반주제명  
Porous materials
일반주제명  
Energy dissipation
일반주제명  
Deformation
일반주제명  
Viscoelasticity
일반주제명  
Mechanics
일반주제명  
Boundary conditions
일반주제명  
Geometry
일반주제명  
Shear strain
일반주제명  
Textiles
일반주제명  
Composite materials
일반주제명  
Industrial engineering
일반주제명  
Materials science
일반주제명  
Mathematics
일반주제명  
Textile research
기타저자  
Purdue University.
기본자료저록  
Dissertations Abstracts International. 86-04B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008250123s2024        us                              c    eng  d
■001000017161525
■00520250211151408
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798342104524
■035    ▼a(MiAaPQ)AAI31285277
■035    ▼a(MiAaPQ)25366066
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a600
■1001  ▼aWei,  Qingxuan.
■24513▼aAn  Integrated  Constitutive  Modeling  Approach  to  Predicting  Deformation  Response  of  Dry  Fabrics  and  Prepregs  Under  Processing  Conditions
■260    ▼a[Sl]▼bPurdue  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a139  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-04,  Section:  B.
■500    ▼aAdvisor:  Zhang,  Dianyun.
■5021  ▼aThesis  (Ph.D.)--Purdue  University,  2024.
■520    ▼aDefects  in  composite  manufacturing  often  lead  to  compromised  structural  integrity  and  reduced  performance  of  the  final  product.  A  robust  constitutive  modeling  framework  is  needed  to  efficiently  and  accurately  predict  the  deformation  responses  of  dry  fabrics  and  pre-impregnated  fibers,  paving  the  way  for  defect  simulation.  This  thesis  presents  a  comprehensive  study  on  the  development  and  application  of  a  novel  constitutive  model  of  fabric  preforms  and  pre-impregnated  fibers  during  composite  manufacturing  processes.This  work  proposes  an  integrated  constitutive  study  for  textile  fabrics  in  the  aspects  of  mesoscale  tow  and  macroscale  fabric  behavior.  First,  a  textile  architecture-based  discrete  modeling  approach  was  developed  to  predict  and  visualize  fiber  tow  and  fabric  deformation.  The  fabrics  consist  of  interlacing  virtual  fiber  tows  which  are  represented  by  Timoshenko  beams  joined  by  translational  and  rotational  springs  and  rotary  dashpots,  which  are  used  to  capture  the  energy  dissipation  during  in-plane  shear  deformation.  Second,  an  anisotropic  hyper-viscoelastic  model  was  developed  using  the  strain  energy  density  function  of  a  homogenized  unit  cell  to  predict  the  fabric  deformation  as  a  continuous  field.  A  Maxwell  model  consisting  of  one  Maxwell  element  and  an  additional  spring  is  used  to  consider  the  nonequilibrium  stresses  generated  during  in-plane  shear,  transverse  shear,  and  through-thickness  compaction  deformations.  Both  approaches  were  experimentally  characterized  and  applied  to  a  hemisphere  draping  model  in  the  commercial  Finite  Element  Analysis  (FEA)  software,  Abaqus,  to  demonstrate  the  predictive  capabilities.Then,  the  robust  hyper-viscoelastic  model  is  extended  to  predict  prepreg  compaction  and  bending  behavior.  In  the  compaction  aspect,  a  coupling  term  of  energy  that  captures  the  effect  of  squeezing  flow  and  a  highly  nonlinear  transverse  compression  energy  are  proposed  to  predict  the  compaction  response  of  prepreg  with  liquid  and  rubbery  resin.  The  viscoelastic  parameters  were  characterized  by  a  Computational  Fluid  Dynamics  (CFD)  model  for  liquid  resin  and  a  discrete  micromechanics  model  for  rubbery  resin.  The  method  was  applied  to  stepwise  compaction  simulation  at  different  temperatures  in  Abaqus  and  compared  to  experiments  for  validation.  In  the  bending  aspect,  the  effective  shear  modulus  is  expressed  as  a  function  of  the  second-order  gradient  of  deformation.  Modeling  parameters  were  characterized  by  an  analytical  model  that  captures  the  underlying  fiber  and  matrix  deformation  mechanism.  Parametric  study  was  conducted  to  illustrate  the  influence  of  each  parameter  and  the  capability  to  enhance  the  accuracy  of  bending  prediction.
■590    ▼aSchool  code:  0183.
■650  4▼aFriction
■650  4▼aBehavior
■650  4▼aShear  tests
■650  4▼aPermeability
■650  4▼aCarbon
■650  4▼aPorous  materials
■650  4▼aEnergy  dissipation
■650  4▼aDeformation
■650  4▼aViscoelasticity
■650  4▼aMechanics
■650  4▼aBoundary  conditions
■650  4▼aGeometry
■650  4▼aShear  strain
■650  4▼aTextiles
■650  4▼aComposite  materials
■650  4▼aIndustrial  engineering
■650  4▼aMaterials  science
■650  4▼aMathematics
■650  4▼aTextile  research
■690    ▼a0346
■690    ▼a0546
■690    ▼a0794
■690    ▼a0405
■690    ▼a0994
■71020▼aPurdue  University.
■7730  ▼tDissertations  Abstracts  International▼g86-04B.
■790    ▼a0183
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17161525▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF12979 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.