Hot spot analysis in complex composite material structures

被引：5

作者：

Molker, Henrik ^{[1
,2
]}

Gutkin, Renaud ^{[1
,2
]}

Pinho, Silvestre ^{[3
]}

Asp, Leif E. ^{[2
]}

机构：

[1] Volvo Car Corp, Durabil CAE Body & Trim, Gothenburg, Sweden

[2] Chalmers Univ Technol, Dept Ind & Mat Sci, Gothenburg, Sweden

[3] Imperial Coll, Dept Aeronaut, London, England

来源：

COMPOSITE STRUCTURES | 2019年 / 207卷

基金：

瑞典研究理事会;

关键词：

Carbon fibre composites; Finite element; Textile; Global-local analysis; Failure initiation; FIBER-REINFORCED COMPOSITES; STRESSES; FAILURE; PLATES;

D O I：

10.1016/j.compstruct.2018.09.088

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, failure initiation in composite structures due to high out-of-plane load components is predicted. The predictions are based on finite element models built with shell elements, intended for global models. The full 3D stress state is estimated through stress recovery by the extended 2D FEM approach. Failure initiation is predicted with state of the art failure criteria for transversely isotropic composite materials. The approach is validated for a range of geometries with different modelling resolutions. Finally, the methodology is verified on a complex composite structure. With the proposed approach, using shell elements, efficient modelling strategies of large structures can be pursued using hot spot analyses to identify critical locations.

引用

页码：776 / 786

页数：11

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