Open AccessMechanical characteristics of short fiber composite samples located behind circle, rectangle, triangle obstacles
Author(s) -
Evgenii Kurkin,
Mariia Spirina,
Vladislava Chertykovtseva,
Ya V. Zakhvatkin
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/868/1/012024
Subject(s) - materials science , composite material , ultimate tensile strength , isotropy , welding , composite number , transverse isotropy , structural engineering , stiffness , fiber , deformation (meteorology) , engineering , physics , quantum mechanics
The article investigates the influence of the weld line on the mechanical characteristics of flat samples on tensile strength according to ISO-527-2, cut from a plate with an obstacle, molded from polyamide-6, reinforced from 30% short glass fibers. There are considered circular, rectangular, triangular obstacles. Melt front, weld line location and reinforcing fiber orientation are calculated in Moldex3D. The stiffness and strength of the samples were predicted in ANSYS using an anisotropic nonlinear composite material model obtained in the Digimat by reverse engineering method. The transversely isotropic criterion of Tsai Hill in the first pseudo-grain failure statement was used for predict strength. The paper presents the influence of the weld line on the stress, deformation and first pseudo-grain failure strength criterion. The greatest contribution to the samples mechanical characteristics was made by the rectangular obstacle.