Mode III Interlaminar Fracture in Woven Glass/Epoxy Composite Laminates
In the present study, fracture behavior of woven
fabric-reinforced glass/epoxy composite laminates under mode III
crack growth was experimentally investigated and numerically
modeled. Two methods were used for the calculation of the strain
energy release rate: the experimental compliance calibration (CC)
method and the Virtual Crack Closure Technique (VCCT). To
achieve this aim ECT (Edge Crack Torsion) was used to evaluate
fracture toughness in mode III loading (out of plane-shear) at
different crack lengths. Load–displacement and associated energy
release rates were obtained for various case of interest. To
calculate fracture toughness JIII, two criteria were considered
including non-linearity and maximum points in load-displacement
curve and it is observed that JIII increases with the crack length
increase. Both the experimental compliance method and the virtual
crack closure technique proved applicable for the interpretation of the
fracture mechanics data of woven glass/epoxy laminates in mode III.
[1] Becht G and Gillespie JRJW. Design and analysis of the crack rail shear
specimen for mode III interlaminar fracture. Compos Sci Technol. 1988;
31: 143-57.
[2] Donaldson SL. Mode III interlaminar fracture characterization of
composite materials. Compos Sci Technol. 1988; 32: 225-49.
[3] Hwang S-F and Hu C-L. Tearing mode interlaminar fracture toughness
of composite materials. Polym. Compos. 2001; 22: 57-64.
[4] Sharif F, Kortschot MT, Martin RH. Mode III delamination using a split
cantilever beam. In: Martin, R.H. (Ed.), Composite Materials: Fatigue
and Fracture. ASTM STP 1230, ASTM, Philadelphia. 1995; 5: 85-99.
[5] Trakas K, Kortschot MT. The relationship between critical strain energy
release rate and fracture mode multidirectional carbon fiber/epoxy
laminates. In: Armanios, E.A. (Ed.), Composite Materials: Fatigue and
Fracture, ASTM STP 1285, ASTM, 1997; 6: 283-304.
[6] Szekrényes A. Improved analysis of the modified split-cantilever beam
for mode-III fracture. Int. J. Mech. Sci. 2009; 51: 682-93.
[7] Lee SM. An edge crack torsion method for mode III delamination
fracture testing. J Compos Technol Res. 1993; 15: 193-201.
[8] Liao WC and Sun CT. The determination of mode III fracture toughness
in thick composite laminates. Compos Sci Technol. 1996; 56: 489-99.
[9] Krueger R. The virtual crack-closure technique: history, approach and
applications. ICASE report 2002-10. NASA/CR-2002-211628.
[1] Becht G and Gillespie JRJW. Design and analysis of the crack rail shear
specimen for mode III interlaminar fracture. Compos Sci Technol. 1988;
31: 143-57.
[2] Donaldson SL. Mode III interlaminar fracture characterization of
composite materials. Compos Sci Technol. 1988; 32: 225-49.
[3] Hwang S-F and Hu C-L. Tearing mode interlaminar fracture toughness
of composite materials. Polym. Compos. 2001; 22: 57-64.
[4] Sharif F, Kortschot MT, Martin RH. Mode III delamination using a split
cantilever beam. In: Martin, R.H. (Ed.), Composite Materials: Fatigue
and Fracture. ASTM STP 1230, ASTM, Philadelphia. 1995; 5: 85-99.
[5] Trakas K, Kortschot MT. The relationship between critical strain energy
release rate and fracture mode multidirectional carbon fiber/epoxy
laminates. In: Armanios, E.A. (Ed.), Composite Materials: Fatigue and
Fracture, ASTM STP 1285, ASTM, 1997; 6: 283-304.
[6] Szekrényes A. Improved analysis of the modified split-cantilever beam
for mode-III fracture. Int. J. Mech. Sci. 2009; 51: 682-93.
[7] Lee SM. An edge crack torsion method for mode III delamination
fracture testing. J Compos Technol Res. 1993; 15: 193-201.
[8] Liao WC and Sun CT. The determination of mode III fracture toughness
in thick composite laminates. Compos Sci Technol. 1996; 56: 489-99.
[9] Krueger R. The virtual crack-closure technique: history, approach and
applications. ICASE report 2002-10. NASA/CR-2002-211628.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:56048", author = "Farhad Asgari Mehrabadi and Mohammad Reza Khoshravan", title = "Mode III Interlaminar Fracture in Woven Glass/Epoxy Composite Laminates", abstract = "In the present study, fracture behavior of woven
fabric-reinforced glass/epoxy composite laminates under mode III
crack growth was experimentally investigated and numerically
modeled. Two methods were used for the calculation of the strain
energy release rate: the experimental compliance calibration (CC)
method and the Virtual Crack Closure Technique (VCCT). To
achieve this aim ECT (Edge Crack Torsion) was used to evaluate
fracture toughness in mode III loading (out of plane-shear) at
different crack lengths. Load–displacement and associated energy
release rates were obtained for various case of interest. To
calculate fracture toughness JIII, two criteria were considered
including non-linearity and maximum points in load-displacement
curve and it is observed that JIII increases with the crack length
increase. Both the experimental compliance method and the virtual
crack closure technique proved applicable for the interpretation of the
fracture mechanics data of woven glass/epoxy laminates in mode III.", keywords = "Mode III, Fracture, Composite, Crack growth Finite
Element.", volume = "7", number = "1", pages = "47-4", }