Composite Mechanics

Altenbach, Holm

doi:10.1007/978-3-031-11589-9_1

Cited by 3 publications

(2 citation statements)

References 55 publications

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“…From this follows that the testing direction of the three-point bending test is orthogonal to the scanning direction. In fact, the scanning direction has an influence on the mechanical properties, which has already been worked out in previous studies on the basis of tensile tests [11,19,20]. However, as this is not the focus of this work, only one orientation of the specimen in the printer is considered for the investigation.…”

Section: Methodsmentioning

confidence: 99%

Determination of the flexural properties of additively manufactured polyamide 12 components with antimicrobial titanium dioxide additives

du Maire,

Friebertshäuser,

Deckert

et al. 2024

Materialwissenschaft Werkst

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Antibacterial properties of components are increasingly becoming an important challenge in material development especially in polymer technology. A well‐known additive with which an antibacterial effect can be achieved is the metal oxide titanium dioxide. The aim of this research work was to investigate possible influences on the flexural properties of additively manufactured components resulting from the addition of titanium dioxide as an antimicrobial additive. Compounds with 5 %, 10 % and 15 % titanium dioxide and polyamide 12 as matrix material were produced. Three‐point bending test specimens were fabricated out of these compounds, anaylsed and the results were compared with specimens made of virgin polyamide 12. The investigations show a general loss in ductility compared to the virgin polyamide 12. A comparison of the different titanium dioxide contents shows no clear change in the flexural stress at conventional bending. The flexural strain at break seems to decrease for higher titanium dioxide contents.

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Section: Methodsmentioning

confidence: 99%

Determination of the flexural properties of additively manufactured polyamide 12 components with antimicrobial titanium dioxide additives

du Maire,

Friebertshäuser,

Deckert

et al. 2024

Materialwissenschaft Werkst

View full text Add to dashboard Cite

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“…The printer operates with a 100 W carbon dioxide laser and has a possible build volume of 380 mm × 330 mm × 275 mm. As already investigated in previous studies, the orientation of the samples in the building chamber has a significant influence on the mechanical properties, i. e., the tensile strength, but since this is not the subject of this work, the specimens are only manufactured in one orientation [11,17,18]. They are placed parallel to the scanning direction of the printer, i. e., the testing direction corresponds to the scanning direction.…”

Section: Methodsmentioning

confidence: 99%

Characterisation of the mechanical properties of polyamide 12 powder when using titanium dioxide as antimicrobial additive

Maire

Deckert

Johlitz

et al. 2023

Materialwissenschaft Werkst

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Antimicrobial properties of plastic components are an important part of polymer engineering. One commonly used additive with an antibacterial effect is titanium dioxide. The aim of this study is to investigate the influences on the mechanical properties resulting from the addition of titanium dioxide as an antimicrobial additive and the processing of the compounds with selective laser sintering. Compounds with 5 %, 10 % and 15 % titanium dioxide and polyamide 12 as matrix material are fabricated. Tensile test specimen are produced from the compounds, examined and the results compared with virgin polyamide 12. The investigations show a general loss in the ultimate tensile strength compared to the virgin polyamide 12. Comparing the different titanium dioxide contents with each other, an increasing tensile strength with increasing titanium dioxide content of the compound can be examined. A decreasing elongation at break and thus a decreasing ductility can also be observed. Furthermore, the results of the tensile test show a stiffening effect, i. e. an increase in the elastic modulus due to the addition of titanium dioxide.

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Mechanical Constitutive Models of Fiber Reinforced Plastics for Finite Element Analysis

Zhao

2024

Composite Materials - Science and Engineering [Working Title]

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This chapter is devoted to introducing some basic constitutive models of fiber reinforced plastics (FRPs), presenting the rationale for modifying and improving the constitutive model in accordance with the actual physical mechanism, and proposing the application ideas of the constitutive model for material subroutines in conjunction with the finite element (FE) method. These constitutive models can serve as a foundation for the establishment and development of new constitutive models. As we know, the advent of fiber reinforced plastics (FRPs) has furnished robust reinforcement for aerospace and other sophisticated equipment, thereby facilitating and enhancing human exploration of the sea, land, air, and sky. This kind of material has the characteristics of multi-phase distribution, which allows artificial control of its properties, qualifying it as an advanced composite material. However, as the scope of FRP applications continues to expand, a number of new challenges have emerged, including those related to physical fields, boundary conditions, material limitations, and more. This underscores the necessity for further development of some existing theories. Finite element analysis (FEA), as the third paradigm of scientific research, has been instrumental in facilitating significant advances in numerous engineering design projects. At present, the application of FEA to FRPs remains a complex, time-consuming, and pivotal process, which suggests that this chapter will provide useful insights.

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Composite Mechanics

Cited by 3 publications

References 55 publications

Determination of the flexural properties of additively manufactured polyamide 12 components with antimicrobial titanium dioxide additives

Determination of the flexural properties of additively manufactured polyamide 12 components with antimicrobial titanium dioxide additives

Characterisation of the mechanical properties of polyamide 12 powder when using titanium dioxide as antimicrobial additive

Mechanical Constitutive Models of Fiber Reinforced Plastics for Finite Element Analysis

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