A MICROMECHANICAL APPROACH TO MODELING THE EFFECT OF IMPACT INDUCED DAMAGE ON THE VIBRATION RESPONSE OF CFRP LAMINATES

被引：0

作者：

Perez, Marco A. ^{[1
,2
]}

Gil, Lluis ^{[1
,2
]}

Oller, Sergio ^{[2
,3
]}

Felippa, Carlos A. ^{[4
,5
]}

机构：

[1] Lab Technol Innovat Struct & Mat LITEM, Colon 11,TR45, Barcelona 08222, Spain

[2] Univ Politecn Catalunya BarcelonaTech, Dept Resistencia Mat & Estruct Engn, Barcelona, Spain

[3] Int Ctr Numer Methods Engn CIMNE, Barcelona 08034, Spain

[4] Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA

[5] Univ Colorado, Ctr Aerosp Struct, Boulder, CO 80309 USA

来源：

20TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS | 2015年

基金：

欧洲研究理事会;

关键词：

Impact Damage; Micro-Mechanical Approach; Modal Analysis; COMPOSITE-MATERIALS;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum approach is used to estimate the map of induced internal damage by considering the micro-structural interaction between the composite constituents and modifying their constitutive performance through a continuum damage formulation. An eigenvalue analysis is then done to determine the modal response of impacted laminates. The validity of the modeling approach to successfully reproduce the vibration response of impacted coupons is assessed through a comparison with an experimental test series conducted on a set of 48 CFRP laminated coupons. The results confirm the ability of the described approach in comparison to competing ones used to reproduce the experimentally observed behaviour.

引用

页数：12

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