TY - JOUR
T1 - Strain-controlling mechanical behavior in noncrystalline materials. II
T2 - Fracture behavior
AU - Kameda, J.
AU - Yokoyama, Y.
AU - Allen, T. R.
N1 - Funding Information:
This work was initiated while one of the authors (J.K.) was engaged in the U.S. Office of Naval Research Global (ONRG). He gratefully acknowledges the continuous support of Dr. F.M. Pestorius, former Technical Director of ONRG and valuable discussions with Prof. Y. Miyano of Kanazawa Institute of Technology, Japan and Dr. J.H. Gosse of Boeing Co. T.R.A. gratefully acknowledges ONR's support of the Navy Reserve program.
PY - 2007/3/15
Y1 - 2007/3/15
N2 - A new critical strain criterion controlling the onset of plastic deformation presented in a companion paper (part I) is extended to elaborate peculiar fracture behavior in noncrystalline metallic solids and carbon fiber-reinforced plastic composites. The strain criterion enables one to account for a reason why shear band-induced brittle fracture behavior in Zr-base metallic glasses can more readily proceed in uniform tension than in notched and precracked specimens where the local stress and strain is localized. It is suggested that in noncrystalline alloys environmental effects cause a transition from strain-controlled to stress-controlled fracture particularly under cyclic loading. The strengthening of amorphous polymers by carbon fibers results in strain-controlled brittle fracture, which strongly depends on the strain rate and temperature due to the viscoelastic behavior of matrix amorphous polymers.
AB - A new critical strain criterion controlling the onset of plastic deformation presented in a companion paper (part I) is extended to elaborate peculiar fracture behavior in noncrystalline metallic solids and carbon fiber-reinforced plastic composites. The strain criterion enables one to account for a reason why shear band-induced brittle fracture behavior in Zr-base metallic glasses can more readily proceed in uniform tension than in notched and precracked specimens where the local stress and strain is localized. It is suggested that in noncrystalline alloys environmental effects cause a transition from strain-controlled to stress-controlled fracture particularly under cyclic loading. The strengthening of amorphous polymers by carbon fibers results in strain-controlled brittle fracture, which strongly depends on the strain rate and temperature due to the viscoelastic behavior of matrix amorphous polymers.
KW - Carbon fiber-reinforced plastic composite
KW - Environmental effect
KW - Noncrystalline metallic alloys
KW - Strain-controlled shear fracture
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U2 - 10.1016/j.msea.2006.10.031
DO - 10.1016/j.msea.2006.10.031
M3 - Article
AN - SCOPUS:33846815419
VL - 448
SP - 229
EP - 234
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 1-2
ER -