Multi-scale coupling curing analysis method for resin-based composite material
A technology of composite materials and analysis methods, applied in the field of multi-scale coupling solidification analysis of resin-based composite materials, can solve the problems of ignoring the microscopic characteristics of composite materials, lack of understanding of composite materials, and limitation of the application range and accuracy of the method, so as to improve construction Model and calculation efficiency, guarantee accuracy, and the effect of improving accuracy
Active Publication Date: 2020-06-09
上海索辰信息科技股份有限公司
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However, the main problem of the above method is that it ignores the microscopic characteristics of composite materials, lacks the understanding of the essence of the curing process of composite materials, and needs to develop corresponding phenomenological theories for different materials, and the application range and accuracy of the method are limited.
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[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0036] Such as figure 1 As shown, this embodiment provides a multi-scale coupled curing analysis method for resin-based composite materials, including the following steps:
[0037] Step 101, establishing a microscopic analysis model of the resin-based composite material according to the periodic microstructure characteristics of the resin-ba...
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The invention discloses a multi-scale coupling curing analysis method for a resin-based composite material. The method comprises the following steps: establishing a microscopic analysis model of the resin-based composite material according to periodic microstructure characteristics of the resin-based composite material; applying periodic boundary conditions to the microscopic analysis model according to the homogenization theory, applying a resin curing kinetic model to obtain curing characteristics of the microscopic analysis model, and applying a structural mechanical model of the resin-based composite material to obtain mechanical characteristics of the composite material microscopic analysis model; establishing the macroscopic model of the resin-based composite material, and endowing the macroscopic model with curing characteristics and mechanical characteristics as attributes; and applying boundary conditions to the macroscopic model of the resin-based composite material, and obtaining a curing analysis result by using a finite element analysis method. According to the method, for the macrostructure of the resin-based composite material, the curing characteristic of the resin-based composite material is considered from a microstructure, and the curing mechanism of the resin-based composite material is grasped essentially, so that the modeling and calculation efficiency isimproved while the accuracy is ensured.
Description
technical field [0001] The invention is applied to the field of composite material simulation, especially the field of solidification simulation of resin-based composite materials, and in particular relates to a multi-scale coupling solidification analysis method for resin-based composite materials. Background technique [0002] Composite materials are obtained by mixing two or more materials through physical or chemical means, including matrix phase and reinforcement phase. Forming and curing of resin-based composite materials is a very critical link in the production and manufacture of composite materials. During the curing process, the temperature field and curing degree field inside the composite material are unevenly distributed, so the composite material will experience different degrees of thermal expansion and curing shrinkage, which will cause thermal stress and curing shrinkage stress. The existence of these internal stresses has a great influence on the mechanica...
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Inventor 亚纪轩陈灏谢蓉
Owner 上海索辰信息科技股份有限公司