EVALUATION OF THE EFFECT OF ELEVATED TEMPERATURE AND PRELIMINARY THERMAL AGING ON THE RESIDUAL MECHANICAL PROPERTIES OF A STRUCTURAL FIBERGLASS USING THE SIGNALS OF ACOUSTIC EMISSION

被引：2

作者：

Lobanov, D. S. ^{[1
]}

Lunegova, E. M. ^{[1
]}

机构：

[1] Perm Natl Res Polytech Univ, Perm, Russia

来源：

MECHANICS OF COMPOSITE MATERIALS | 2023年 / 59卷 / 01期

关键词：

fiberglass; thermal aging; acoustic emission; uniaxial tension; interlaminar shear; BEHAVIOR; WATER;

D O I：

10.1007/s11029-023-10084-z

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The paper presents the results of mechanical tests on an aviation structural fiberglass based on a VPS-48 prepreg during quasi-static tests in the uniaxial tension and interlaminar shear. The results of studies on the effect of elevated temperature and preliminary thermal aging on the residual mechanical properties of the material were shown. Results of a preliminary thermal aging (under different regimes) on the mechanical characteristics, the nature of deformation and the implementation of various mechanisms of destruction the composite during interlaminar shear tests were obtained. The laws of changes in the properties of the thermally aged fiberglass during tensile and interlaminar shear tests were studied on the basis of a comprehensive analysis of its mechanical characteristics and AE signals. The time dependences of AE signal parameters for fiberglass specimens were obtained. The paper illustrates distributions of the frequency of spectral maximum of acoustic emission signals obtained after the destruction of specimens with different regimes of preliminary thermal aging presented graphically. An analysis of the microstructure of the surface of specimens before and after a preliminary thermal aging was carried out.

引用

页码：101 / 114

页数：14

共 34 条

[1] Tidal turbine blade composites - A review on the effects of hygrothermal aging on the properties of CFRP [J].

Alam, Parvez ;

Robert, Colin ;

Bradaigh, Conchur M. O. .

COMPOSITES PART B-ENGINEERING, 2018, 149 :248-259

[2] Effect of different commercial oils on mechanical properties of composite materials [J].

Amaro, A. M. ;

Reis, P. N. B. ;

Neto, M. A. ;

Louro, C. .

COMPOSITE STRUCTURES, 2014, 118 :1-8

[3] Damage characterization of stiffened glass-epoxy laminates under tensile loading with acoustic emission monitoring [J].

Arumugam, V. ;

Saravanakumar, K. ;

Santulli, C. .

COMPOSITES PART B-ENGINEERING, 2018, 147 :22-32

[4] Experimental wavelet analysis of acoustic emission signal propagation in CFRP [J].

BarilE, C. ;

Casavola, C. ;

Pappaletter, G. ;

Vimalathithan, P. K. .

ENGINEERING FRACTURE MECHANICS, 2019, 210 :400-407

[5] Damage characterization in composite materials using acoustic emission signal-based and parameter-based data [J].

Barile, Claudia ;

Casavola, Caterina ;

Pappalettera, Giovanni ;

Vimalathithan, Paramsamy Kannan .

COMPOSITES PART B-ENGINEERING, 2019, 178

[6] Diagnostics of Glass Fiber Reinforced Polymers and Comparative Analysis of Their Fabrication Techniques with the Use of Acoustic Emission [J].

Bashkov, O. V. ;

Bryansky, A. A. ;

Panin, S. V. ;

Zaikov, V. I. .

ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2016, 2016, 1783

[7] Three point bending test of glass/epoxy composite health monitoring by acoustic emission [J].

Beheshtizadeh, Nima ;

Mostafapour, Amir ;

Davoodi, Saman .

ALEXANDRIA ENGINEERING JOURNAL, 2019, 58 (02) :567-578

[8]

Bittner T., 2014, Adv. Mater. Research, V923, P209

[9] Durability prediction for GFRP reinforcing bars using short-term data of accelerated aging tests [J].

Chen, Yi ;

Davalos, Julio F. ;

Ray, Indrajit .

JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2006, 10 (04) :279-286

[10] Effects of aging on water and lubricating oil on the creep behavior of a GFRP matrix composite [J].

de Souza, L. R. ;

Marques, A. T. ;

d'Almeida, J. R. M. .

COMPOSITE STRUCTURES, 2017, 168 :285-291

← 1 2 3 4 →