Compressive intralaminar fracture toughness and residual strength of 2D woven carbon fibre reinforced composites: New developments on using the size effect method

被引：18

作者：

Dalli, D. ^{[1
]}

Catalanott, G. ^{[1
]}

Varandas, L. F. ^{[1
]}

Falzon, B. G. ^{[1
]}

Foster, S. ^{[2
]}

机构：

[1] Queens Univ Belfast, ACRG, Sch Mech & Aerosp Engn, Ashby Bldg Stranmillis Rd, Belfast BT9 5AH, Antrim, North Ireland

[2] McLaren Racing Ltd, McLaren Technol Ctr, Chertsey Rd, Woking GU21 4YH, Surrey, England

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2020年 / 106卷

关键词：

Compressive intralaminar fracture toughness; Carbon fibre; Analytical modelling; Computational modelling; Mechanical testing; PROGRESSIVE FAILURE MODEL; VELOCITY IMPACT DAMAGE; CRACK RESISTANCE CURVE; PART II; NUMERICAL-ANALYSIS; BEHAVIOR; PROPAGATION; MECHANISMS;

D O I：

10.1016/j.tafmec.2020.102487

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents new developments in the use of the size effect method for obtaining the compressive fracture toughness of 2D woven carbon fibre composites. A modification of the Double Edge Notch Compression (DENC) specimen geometry is proposed, to fit the Combined Loading Compression (CLC) standard fixture, and shown to reduce peak load dispersion. The notch tip diameter sensitivity on the peak load is also investigated, experimentally and numerically, and shown not to have a significant influence on fracture toughness. The use of the CLC fixture also allows for the residual compressive strength of the material to be calculated from post-peak crushing.

引用

页数：14

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