Stress waves affect the stress field at crack tip and dominate dynamic propagation. Therefore, evaluating influence of blasting on propagation behavior mechanical characteristics is great significance for engineering blasting. In this study, ANSYS/LS-DYNA was used numerical simulation, in which distribution were closely observed. Moreover, ABAQUS applied simulating path calculating intensity fa...

We report on a detailed comparison between two different experimental techniques used to measure the dynamic initiation fracture toughness KdIC of a bulk metallic glass system (Vitreloy-1) and its b-phase composite. Both the coherent gradient sensing interferometry (CGS) and one-point impact techniques reveal very similar trends in the KdIC– _ K d I relationship for Vitreloy-1. A drastic increa...

Abstract In this contribution, a novel framework for simulating mixed-mode failure in rock is presented. Based on hybrid phase-field model fracture, separate variables are introduced tensile (mode I) and shear II) fracture. The resulting three-field problem features length scale parameters mode I II cracks. contrast to the classic two-field approaches, it can thus account different strength of ...

As a continuation of previous work involving synthesis of an allyl-functionalized hyperbranched polyimide, AT-PAEKI, we have studied the use of this reactive polymer as a modifier of bisphenol-A based bismaleimide resin (BPA-BMI). This was pursued in anticipation of improvements in processability as well as physical properties including glass transition temperature, elastic modulus, and fractur...