dcterms:abstract
  • The residual stress and birefringence in injection-molded plastic parts can be divided into the flow-induced residual stress and birefringence produced in flowing stage, the thermally-induced residual stress and birefringence produced in cooling stage. However, the physics involved in the generation of the thermally-induced residual stress and birefringence still remains to be understood. Because polymer experiences viscoelastic history near the glass-transition temperature it is hard to model the entire process. Volume relaxation phenomenon was included to predict the final thermally-induced residual stress and birefringence in quenched plastic parts more accurately. The present study focused on comparing the predicted values for thermally-induced residual stress and birefringence with and without volume relaxation behavior (or free volume theory) under free and constrained quenching conditions. As a result, the residual stress remained as a tensile stress at the center and as a compressible stress near the surface for the free quenching cases. In contract the residual stress remained as a compressible stress at the center and as a tensile stress near the surface for the constrained quenching cases. The residual birefringence remained as minus values at the center and as plus values near the surface for the free quenching cases. Interestingly the residual birefringence showed minus values in entire zone for the constrained quenching cases. In the prediction of birefringence only the case including free volume theory showed the correct result for the distribution of birefringence in thickness direction (xsd:string)
dcterms:accessRights
dcterms:alternative
  • Study on the Prediction of Thermally-Induced Residual Stress and Birefringence in Quenched Polystyrene Plate Including Free Volume Theory (xsd:string)
nlon:antecedentSource
  • born digital (xsd:string)
nlon:audienceNote
  • 일반이용자 (xsd:string)
dc:creator
  • 김종선 (xsd:string)
  • 윤경환 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-12T16:13:41 (xsd:dateTime)
bibframe:extent
  • 11 p (xsd:string)
dc:format
  • application/pdf (xsd:string)
nlon:genre
  • 학술논문 (xsd:string)
nlon:holdingInstitution
  • 국립중앙도서관 (xsd:string)
dcterms:identifier
  • http://www.dbpia.co.kr/view/ar_view.asp?arid=530093 (xsd:string)
dcterms:isPartOf
bibo:issn
  • 1226-4873 (xsd:string)
dcterms:issued
  • 200301 (xsd:string)
nlon:kdc
  • 550.5 (xsd:string)
nlon:kdcn
nlon:keyword
  • Residual Stress(잔류응력), Birefrigence(복굴절), Volume Relaxation(체적이완 ), Free Volume Theory(자유 체적 이론), Constrained Quenching(구속급냉), Free Quenching(자유급냉), Injection Molding(사출성형) (xsd:string)
rdfs:label
  • 자유 체적이론을 고려한 급냉 폴리스티렌판에 발생하는 잔류응력과 복굴절 형성에 관한 연구 / Kim, Jongsun / Yoon, Kyunghwan (xsd:string)
  • 자유 체적이론을 고려한 급냉 폴리스티렌판에 발생하는 잔류응력과 복굴절 형성에 관한 연구 / Kim, Jongsun / Yoon, Kyunghwan / Kim, Jongsun / Yoon, Kyunghwan (xsd:string)
nlon:languageNote
  • 한국어 (xsd:string)
nlon:medium
  • 전자자료(Application) (xsd:string)
nlon:publicationPlace
  • 서울 (xsd:string)
  • 한국 (xsd:string)
dc:publisher
  • 대한기계학회 (xsd:string)
owl:sameAs
dcterms:tableOfContents
  • Abstract 1.서론 2.열에 의한 잔류응력 3.열에 의한 복굴절 4.자유 체적 이론 5.잔류 응력 및 복굴절 측정 6.모사 결과와 실험 결과의 비교 7.결론 후기 참고문헌 부록 (xsd:string)
dcterms:title
  • 자유 체적이론을 고려한 급냉 폴리스티렌판에 발생하는 잔류응력과 복굴절 형성에 관한 연구 (xsd:string)
nlon:titleOfHostItem
  • 대한기계학회 논문집 A권 (xsd:string)
rdf:type
nlon:typeOfResource
nlon:uci
  • G701:C-00035062692 (xsd:string)