Nonlinear Effects in the Behavior and Fracture of Composite Materials

21st Winter School on Continuous Media Mechanics

计算机技术

Lomakin, E.V.^1 ; Fedulov, B.N.^2 ; Fedorenko, A.N.^2

Lomonosov Moscow State University, GSP-1, Leninskie Gory, Moscow

119991, Russia^1

CDM2, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, Moscow

121205, Russia^2

关键词: Damage parameter;    Failure prediction;    Fracture of composites;    High strain rates;    Nonlinear deformations;    Nonlinear effect;    Nonlinear shear deformation;    Strength characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/581/1/012015/pdf
DOI  :  10.1088/1757-899X/581/1/012015

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

This paper presents an approach to the formulation of models characterizing nonlinear deformation and damage of composite materials. The research includes the consideration as the simplest model as more complex ones. In this research, a number of material relations to build up a theory for failure prediction in laminated composites are presented. The considered approach deals with the degradation and failure of the material using a phenomenological introduction of damage parameters explicitly influencing on the composite material stiffness. The part of this work is dedicated to the extension of formulated approach to capture and take into account the complex effects such as initial nonlinear shear deformation properties of laminated composites and the influence of high strain rate on the strength characteristics.