Modeling of bio-like composite elements of lattice structures with a given shape of deflection


Аuthors

Polilov A. N.1*, Tatus N. A.1, Xiaoyong T. 2**

1. Mechanical Engineering Research Institute of the Russian Academy of Sciences, 4, M. Khariton'evskii per., Moscow, 101990, Russia
2. State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, China

*e-mail: polilovan@mail.ru
**e-mail: leoxyt@hotmail.com

Abstract

This paper presents a mathematical justification for the feasibility of designing a specialized reinforcement structure for profiled composite elements with a specified deflection shape, which can be applied to the creation of space-based structures. As an example, a method is presented for ensuring the required deflection line during bending of a cantilever beam loaded with an end force, in which the width and height of the sections vary along the longitudinal axis according to power laws. The condition of uniform strength in a cantilever beam with a constant cross-sectional area may not be satisfied, but two other properties are important: maintaining the number of fibers in each section and the ability to ensure a specified neutral line bending shape under a given loading type.

Keywords:

composite material; additive manufacturing; low-modulus and high-strength fiberglass; 3D printer; profiled beam; space structure; stiffness; strength; specified deflection shape.

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