書誌事項
- タイトル別名
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- Rheological constitutive model for thermoplastic resin based on viscoplastic-viscoelastic multiplicative decomposition of deformation gradient
説明
<p>We propose a rheology-based viscoelastic-viscoplastic constitutive model in which the deformation gradient is mutiplicatively decomposed into viscoelastic and viscoplastic components. The viscoelastic and viscoplastic rheology elements are connected in series, and the stress is determined only in the former element, which is modified by the back stress introduced in the latter one to represent the hardening due to orientation of molecular chains. The standard generalized Maxwell model is used to characterize the viscoelastic material behavior at small or moderate strain regime, while a proven finite strain viscoplastic model is employed to realize the transient creep deformations due to frictional resistance of molecular chains. After identifying the material parameters with reference to experimental data and verifying the fundamental performance of the proposed model in reproducing typical material behavior of resin, we carry out two kinds of numerical analyses for simple structures to demonstrate its applicability for practical use.</p>
収録刊行物
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- 日本機械学会論文集
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日本機械学会論文集 82 (839), 16-00060-16-00060, 2016
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680492230016
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- NII論文ID
- 130005166429
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- ISSN
- 21879761
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可