A parametric study of stress concentration issues in unidirectional laminates

被引：11

作者：

Vignoli, Lucas Lisboa ^{[1
]}

Pinho de Castro, Jaime Tupiassu ^{[2
]}

机构：

[1] UFRJ, Mech Eng Dept, Campus Macae, Macae, Brazil

[2] Pontificia Univ Catolica Rio de Janeiro, Mech Eng Dept, Rio de Janeiro, Brazil

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2021年 / 28卷 / 15期

关键词：

Composite; unidirectional laminate; stress concentration; notched strength; failure; FIBER-REINFORCED COMPOSITES; OPEN-HOLE; PROGRESSIVE DAMAGE; FAILURE ANALYSIS; SPECIMEN SIZE; STRENGTH; EVOLUTION; CRITERIA; CRACKING; MATRIX;

D O I：

10.1080/15376494.2019.1688434

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper carries out a parametric analysis to evaluate the effect of circular holes on the strength of unidirectional laminae. Stroh Formalism is used to describe the elastic stresses around the border of circular holes in large plates subjected to in-plane loads and Puck failure criterion is applied to estimate the critical load. Finite plates are investigated using the Finite Element software ANSYS. Matrix failure is observed for most cases and the applied load on the damage onset is smaller than 10% of the unnotched strength and finite plate effect induces changes on the failure mechanism during damage propagation.

引用

页码：1554 / 1569

页数：16

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