Functional gradation of gear shafts made of cementation steel and its influence on damping and microstructure

Göken, J.; Bergmann, Kristin; Baetz, Werner; Steinhoff, Kurt

doi:10.1016/j.matchar.2006.01.013

Cited by 7 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The heat treatment on metal shafts can be a good example for changing mechanical properties along radial direction. 19 With the heat treatment of metal shafts, while the outer side becomes hard and brittle, the core is kept ductile. On the other hand, filament wound composite shafts are manufactured layer by layer.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of functionally hybridized carbon/glass composite shafts

Sevkat

2014

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

External torque on circular composite shafts produces linearly decreasing shear stresses along radial direction. The inner layers never stressed as much as outmost layer. Accommodating fiber stiffness of each layer based on these linearly decreasing stresses may be advantageous. To reduce the cost of carbon fiber-reinforced composite drive shaft, inner layers of shaft can be reinforced by hybrid fiber systems with less stiffness. To achieve that, while the top layer is still reinforced with carbon fiber, inner layers can be reinforced with the mixture of glass and carbon fiber. Without changing the fiber volume fractions, replacement of some carbon fiber with glass fiber will reduce the overall stiffness of fiber system. Mixture ratio or hybrid ratio can be calculated using linearly decreasing stress levels and the rule of mixture. These hybrid composite shafts can be manufactured by filament winding technique. During filament winding, composite shafts are wound layer by layer and filament type can be changed between the layers. The proper mixing ratio can be achieved by arranging the fiber count in each filament bundle. The relation between geometrical parameters and hybrid fiber volume fractions of composite shaft was derived. Finite element analysis on carbon fiber and functionally hybridized glass/carbon fiber shafts with same geometry was conducted. Stress, strain, and moment behavior of both shafts were compared. The possible advantages and disadvantages of hybridization were discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

Finite element analysis of functionally hybridized carbon/glass composite shafts

Sevkat

2014

Journal of Reinforced Plastics and Composites

View full text Add to dashboard Cite

show abstract

“…In a previous work the functional gradation of gear shafts made of cementation steel and its influence on internal friction and microstructure was investigated [10]. It was found that materials damping correlated with the thermally modified microstructure but merely a differentiation between heat-treated and non-heat treated samples was feasible.…”

Section: Introductionmentioning

confidence: 99%

Change of Structure and Properties of 51CrV4 Shaft Caused by Thermo-Mechanical Treatment

Göken¹,

Maikranz-Valentin

Steinhoff

et al. 2008

SSP

View full text Add to dashboard Cite

The simultaneous influence of both thermal and mechanical treatment was applied to produce a geometrically complex shaft from 51CrV4 steel. This special treatment led to the formation of adjacent microstructures which were significantly different from each other. It was found that these microstructural changes were accompanied by a change of mechanical properties in terms of hardness, electrical resistivity and especially internal friction. Specimens for structural studies and study of mechanical and physical properties were taken out from different places of the produced shaft and tested in order to verify and understand the obtained gradation. The significant variations in properties could be explained in terms of structure and dislocation behaviour under applied cyclic stress using mechanical spectroscopy technique. The cold-work (Snoek-Köster) peak was recognised and analysed in the structure of this steel.

show abstract

“…Due to selective thermal and mechanical processing steps a functional gradation of components is possible. The functional gradation of gear shafts made of cementation steel was the subject of an earlier paper, [2] in which an outcome was the understanding of how material damping is connected with its thermally varied microstructure. Still, the effect that a concurrent impact of deformation would cause to the microstructure remains unknown.…”

mentioning

confidence: 99%

Thermo-Mechanical Influence on the Internal Friction of a 51CrV4 Shaft

Göken

Golovin

Andrianova

et al. 2012

Chinese Phys. Lett.

Self Cite

View full text Add to dashboard Cite

The influence of simultaneously applied mechanical and thermal treatment is used for producing a geometrically complex shaft from 51CrV4 steel resulting in widely differing formations of microstructures. Materials' properties such as internal friction (IF), hardness and electrical resistivity are affected by this change of microstructure formations. The Snoek-Köster peak is identified and analyzed in the actual steel structure.

show abstract

Functional gradation of gear shafts made of cementation steel and its influence on damping and microstructure

Cited by 7 publications

References 18 publications

Finite element analysis of functionally hybridized carbon/glass composite shafts

Finite element analysis of functionally hybridized carbon/glass composite shafts

Change of Structure and Properties of 51CrV4 Shaft Caused by Thermo-Mechanical Treatment

Thermo-Mechanical Influence on the Internal Friction of a 51CrV4 Shaft

Contact Info

Product

Resources

About