Mode I steady-state crack propagation through a fully-yielded ligament in thin ductile metal foils
WR Lanning, CE Johnson, SS Javaid… - Theoretical and Applied …, 2019 - Elsevier
Steady-state crack propagation is the advance of a self-similar crack tip with a constant
driving force. Though steady-state growth is often described with analytical models, it is
rarely experimentally observed or characterized under quasi-static loading conditions. Thin
ductile metal sheets, such as the 25.4 μm, 50.8 μm, and 127 μm thick 1235 aluminum
specimens used in this study, exhibit steady-state crack propagation but cannot be
characterized by conventional linear-elastic (K) or elastic-plastic (J) crack tip parameters that …
driving force. Though steady-state growth is often described with analytical models, it is
rarely experimentally observed or characterized under quasi-static loading conditions. Thin
ductile metal sheets, such as the 25.4 μm, 50.8 μm, and 127 μm thick 1235 aluminum
specimens used in this study, exhibit steady-state crack propagation but cannot be
characterized by conventional linear-elastic (K) or elastic-plastic (J) crack tip parameters that …
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