Multiscale modeling of mechanical behavior of soft materials

软材料机械行为的多尺度建模

• 批准号: 21760080
• 负责人: UCHIDA Makoto
• 金额: $ 2.83万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760080/
• 关键词: ソフトマテリアル; マルチスケール; 計算力学; 有限要素法; デジタル画像相関法; 不均一変形; ひずみ勾配; 構成式

In order to predict the mechanical properties of soft materials, an accurate determination of non-uniform deformation of the materials is indispensable. In the present study, an accurate method to evaluate the non-uniform deformation in the material from digitalized images was developed and evolution of deformation field was evaluated quantitatively. Furthermore, the effect of microscopic non-uniform deformation behavior on the mechanical properties of material was investigated by numerical simulation using a multiscale mechanical model based on the material hierarchy.

为了预测软材料的力学性能，准确测定材料的非均匀变形是必不可少的。在本研究中，开发了一种通过数字化图像评估材料不均匀变形的准确方法，并定量评估变形场的演变。此外，利用基于材料层次的多尺度力学模型进行数值模拟，研究了微观非均匀变形行为对材料力学性能的影响。

项目成果

Multiscale computational evaluation of elasto-viscoplastic deformation behavior of amorphous polymer containing microscopic heterogeneity during uniaxial tensile test

单轴拉伸试验中含有微观不均匀性的非晶态聚合物弹粘塑性变形行为的多尺度计算评估

• 发表时间: 2011
• 期刊: Journal of Multiscale Modelling 印刷中
• 作者: Makoto Uchida;Naoya Tada.
• 通讯作者: Naoya Tada.

The Effect of Heterogeneity of Microstructure on the Micro- to Macroscopic Non-uniform Elasto-viscoplastic Deformation Behavior of Polymeric Material

微观结构的异质性对高分子材料微观到宏观非均匀弹粘塑性变形行为的影响

• 发表时间: 2010
• 期刊: Finite Plasticity and Visco-plasticity of Conventional and Emerging Materials, Editors : Akhtar S.Khan & Babak Farrokh, Proceedings of the 16th International Symposium on Plasticity
• 作者: Makoto Uchida;Naoya Tada
• 通讯作者: Naoya Tada

The Effect of Heterogeneity of Microstructure on the Micro- to Macroscopic Non-uniform Elasto-viscoplastic Deformation Behavior of Polymeric Material, Finite Plasticity and Visco-plasticity of Conventional and Emerging Materials.

微观结构的异质性对高分子材料微观到宏观非均匀弹粘塑性变形行为、传统和新兴材料的有限塑性和粘塑性的影响。

• 发表时间: 2010
• 期刊: Editors : Akhtar S. Khan & Babak Farrokh NEAT Press
• 作者: Makoto Uchida;Naoya Tada
• 通讯作者: Naoya Tada

引張試験中における塑性変形場の発展が結晶性高分子材料の応力ひずみ関係に及ぼす影響

拉伸试验过程中塑性变形场演化对结晶聚合物材料应力应变关系的影响

• 发表时间: 2010
• 作者: 内田真;多田直哉
• 通讯作者: 多田直哉

非晶性高分子材料の微視的な不均一性がくびれ伝ぱ挙動に及ぼす影響

非晶聚合物材料微观不均匀性对颈传播行为的影响

• 发表时间: 2010
• 作者: 内田真;多田直哉
• 通讯作者: 多田直哉