An improved methodology based on continuum damage mechanics and stress triaxiality to capture the constraint effect during fatigue crack propagation
Source abstract
Abstract
Abstract An improved continuum damage mechanics (CDM) and extended finite element method (XFEM) methodology is proposed to consider the effect of crack tip constraints on the fatigue crack growth (FCG) behavior. Several FCG experiments are conducted on compact tension (CT), single edge notch bending (SENB) and middle tension (MT) specimens prepared from modified 9Cr-1Mo steel. Combined CDM-XFEM methodology is improved to capture the crack tip constraints effect. Experimental and simulated FCG lives are compared to each other and found in good agreement. This analysis shows that the triaxiality parameter is a key parameter for estimating the crack tip constraints correctly.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · High-Velocity Impact and Material Behavior · Metal Forming Simulation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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