NEW CONCEPTS AND ADV NATURAL SCIENCE AND MATHEMATICS ,, Prof. Dr. Canan ÖZDEMİR, Editör, ALL SCIENCES ACADEMY, Konya, ss.237-253, 2025
In this study, a new type of tube surface is constructed by taking
the TB-Smarandache curve as the center curve in Euclidean 3-space.
The geometric behavior of this surface is analyzed within the framework of the
Frenet–Serret apparatus. The first and second fundamental forms of the TB- Smarandache tube surface are explicitly calculated, and the
corresponding Gaussian and mean curvatures are derived. Based on these results,
the conditions under which the surface becomes flat or minimal are examined in
detail. Furthermore, the asymptotic and geodesic curvatures of the surface are
investigated, and the nature of its curvature lines is discussed. Special
attention is given to the characterization of the surface under Weingarten and
linear Weingarten conditions. These classifications provide insight into the
intrinsic and extrinsic geometry of the surface and help identify special cases
with simplified curvature behavior.
An illustrative example is presented to demonstrate the theoretical
results, and the corresponding surface is visualized graphically. The findings
contribute to the broader understanding of Smarandache-type constructions in
differential geometry and may offer potential applications in geometric
modeling, computer-aided design, and the study of space curves with
frame-dependent properties..
Keywords – Euclidean 3-space, Tube surfaces, Frenet
frame, Smarandache curves, Weingarten surfaces