Fiber Orientation Observation by X-ray CT and Simulation

Nakano, Ryo; Shiota, Tadahiro; Hirakimoto, Akira; Taki, Katsuhiko; Takashio, Hajime; Chean, Yong-Sung

doi:10.4325/seikeikakou.20.237

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…The concentration tensor B is defined using the stiffness S and the compliant tensor C, as shown in eqs. ( 5), (6), and (7).…”

Section: Stiffness Representation Of Composite Materialsmentioning

confidence: 99%

“…It is also known that even the same part has a distribution of orientation angle and degree in the direction of the plate thickness, such as skin and core layers, due to fountain flow during forming. 6) There are few verified cases of the effects of these orientation angles and distributions within a part and in the thickness direction on the accuracy of crash performance prediction.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Molding and Structure Co-Analysis of Injection Molding Composites Considering Heterogeneity in the Thickness Direction

Kawamura,

Morita,

Fukahori

et al. 2024

Mater. Trans.

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During automobile crashes, the main behavior of plastics in the vehicle is bending deformation. Because of this, it is important to accurately calculate the edge stress and allowable stress on structural surfaces. For that purpose, it is necessary to consider the distribution of the fiber orientation angle and degree in the plate thickness direction. In a general coupled analysis for injection-molded materials, a material model is created based on the physical properties obtained from an arbitrary test piece. Therefore, even if the orientation angle in each part to be analyzed is taken into consideration, the degree of orientation is constant in each part, and the degree of orientation distribution in the plate thickness direction is also treated as constant. We tried to improve the accuracy of crash analysis by calculating the edge stress and allowable stress with high accuracy by considering the distribution of orientation angle and degree in the plate thickness direction. For that purpose, we created a model that calculates properties of composite materials from resin and fiber properties, and a process that maps the distribution of orientation angle and degree in the plate thickness direction to each integration point of the shell element in structural molding analysis.

show abstract

“…The concentration tensor B is defined using the stiffness S and the compliant tensor C, as shown in eqs. ( 5), (6), and (7).…”

Section: Stiffness Representation Of Composite Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Molding and Structure Co-Analysis of Injection Molding Composites Considering Heterogeneity in the Thickness Direction

Kawamura,

Morita,

Fukahori

et al. 2024

Mater. Trans.

View full text Add to dashboard Cite

show abstract

Prediction of Flow Direction by Thermal Analysis and Coupling with Structural Analysis in FRP(<Special Issue>18th Design & Systems Conference)

Oishi¹,

Sakamoto²,

Aoki³

2009

Trans.JSME(C)

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射出成形複合材の板厚方向の繊維配向不均質性を考慮した成形-構造連成解析手法の検討

KAWAMURA,

MORITA,

FUKAHORI

et al. 2023

J. Soc. Mat. Sci., Japan

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In the crash of automobiles, main behavior is bending deformation. Because of this, it is important to accuracy of calculate edge stress and allowable stress on surface of structure. For that purpose, it is necessary to consider the distribution of the fiber orientation angle and degree in the plate thickness direction. In a general coupled analysis for injection molding materials, a material model is created based on the physical properties obtained from an arbitrary test piece. Therefore, even if the orientation angle in each part to be analyzed is taken into consideration, the degree of orientation is constant in each part, and the degree of orientation distribution in the plate thickness direction is also treated as constant. We tried to improve the accuracy of crash analysis by calculating the edge stress and allowable stress with high accuracy by considering the distribution of orientation angle and degree in the plate thickness direction. For that purpose, we created a model that calculating properties of composite materials from resin and fiber properties, and the process that mapping the distribution of orientation angle and degree in the plate thickness direction to each integration point of the shell element on structural analysis from molding analysis.

show abstract

Fiber Orientation Observation by X-ray CT and Simulation

Cited by 6 publications

References 1 publication

Molding and Structure Co-Analysis of Injection Molding Composites Considering Heterogeneity in the Thickness Direction

Molding and Structure Co-Analysis of Injection Molding Composites Considering Heterogeneity in the Thickness Direction

Prediction of Flow Direction by Thermal Analysis and Coupling with Structural Analysis in FRP(<Special Issue>18th Design & Systems Conference)

射出成形複合材の板厚方向の繊維配向不均質性を考慮した成形-構造連成解析手法の検討

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