Dynamic Testing of Composite Laminates with a Tensile Split Hopkinson Bar

SAGE Publications - Tập 34 Số 4 - Trang 260-273 - 2000
Hamid Eskandari‐Naddaf1, J.A. Nemes2
1McGill University
2Mechanical Engineering Department, McGill University, 817 Sherbrook W., Montreal, Quebec, Canada H3A 2K6

Tóm tắt

A tensile version of the split Hopkinson bar, suitable for dynamic testing of laminated composite materials, is introduced. A pulse duration of 200-250 microseconds and peak strain rates of up to 350 s5l are obtained. Tests performed on a quasi-isotropic lay-up of graphite-epoxy show good repeatability. To determine the significance of rate-dependency, static tests were also performed using an identical specimen configuration as in the dynamic tests. Comparison of the Hopkinson bar tests to those performed at a quasi-static rate on a hydraulic test machine shows the rate-dependency of this lay-up of graphite-epoxy. Tensile strength and fracture strain are found to be higher for dynamic testing.

Từ khóa


Tài liệu tham khảo

10.1007/BF00550019

10.1016/0010-4361(71)91123-2

10.1007/BF02326048

10.1007/BF02323869

10.1007/BF02324887

10.1088/0370-1301/62/11/302

Dee A. T., Proceedings of ICCM-11, 693

10.1007/BF02326065

10.1177/002199839502901003

10.1007/BF00542078

Welsh, L. M., 1985, ICCM, 5, 1517

Albertini, C., 1974, Mechanical Properties at High Rates of Strain

10.1007/BF02326644

10.1007/BF02323163

10.1088/0022-3735/15/11/011

10.1007/BF02326244

10.1243/JMES_JOUR_1960_002_016_02

10.1007/BF02322543

10.1111/j.1747-1567.1993.tb00274.x

20. Follansbee, P. S., 1985, "The Hopkinson Bar," Metal Handbook, 9th Ed., Amer. Soc. Metals (ASM) 8:198-203.

Nicholas, T., 1982, Impact Dynamic

Nicholas, T., 1985, Metal Handbook, 8, 208

Behler, F. J., 1992, ECCM, 5, 123

Thông tin
Thông tin xuất bản

SAGE Publications

Tập 34 Số 4

260-273

Thông tin tác giả