Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Virtual testing of composite plates under flexural loadings
Submission Author:
Ricardo De Medeiros , SC , Brazil
Co-Authors:
Helio Alipio, Gabriel Sales Candido Souza, Marcelo Leite Ribeiro, Volnei Tita, Ricardo De Medeiros
Presenter: Helio Alipio
doi://10.26678/ABCM.MECSOL2022.MSL22-0030
Abstract
Composite materials are increasingly used in industry, such as naval, aerospace, medical, even though for high-performance sports equipment. New segments start to use this type of material to improve their products, looking for materials lighter and more strength materials, among other characteristics, which can be obtained by composite materials. Most composite materials exhibit high sensitivity with respect to loads and effects, but this is not taken into consideration in selecting the structure of the material. Such unfavourable factors include technological defects of different types, local temperature effects, etc. All these factors decrease the resistance to theoretical effects, carrying capacity, longevity, and structural integrity. Thus, composite materials constitute a new challenge for several sectors of the scientific community, and their introduction in engineering and society generally represents an even greater challenge for researchers and academics. Therefore, this study proposes the development and application of computational model to evaluate the residual strength of carbon fibre reinforced polymer (CFRP) plates, in order to simulate the progressive damage behaviour observed during the bending test. Numerical analyses are performed via Finite Element Method to predict the progressive damage in the laminate structures by using ABAQUS™ software linked to the implemented UMAT (User Material Subroutine). The experiments are carried out on specimens of rectangular plates of composite materials with two different stacking sequences and thicknesses to evaluate the influence of these factors on the flexural response. Finally, numerical and experimental results are compared in order to verify the potentialities and limitations of the virtual testing proposals.
Keywords
Composite Plate, Progressive damage model, four-point bending test, Residual Strength, Finite Element Method (FEM)
