Stress corrosion cracks can be a serious problem in many engineering industries, and especially so for critical parts. While an ultrasonic transducer can be used for the non-destructive evaluation of cracks with simple shapes, complex branching cracks, such as stress corrosion cracks, require ultrasonic arrays that consist of multiple transducers and are able to inspect at multiple angles.
Molecular dynamics (MD) simulations based on the modified-embedded atom method (MEAM) and a phase-field crystal (PFC) model are utilized to quantitatively investigate the solid-liquid properties of Fe. A set of second nearest-neighbor MEAM parameters for high-temperature applications are developed for Fe, and the solid-liquid coexisting approach is utilized in MD simulations to accurately calculate the melting point, expansion in melting, latent heat, and solid-liquid interface free energy, and surface anisotropy.
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Hi All,
Is there any one working on modelling of friction using LAMMPS to discuss an issues?
Best
I hope this can be done and I want to say thank you in advance for any feedback.
I have already completed a simulation of a plate with a hole and pulling a mandrel through the hole to expand it and create a plastically deformed hole.
Now, I would like to take this plastically deformed hole, add an XFEM crack and vertically pull to simulate a tension test.
Can this be done?
Issues:
Tried Predefined Field - Stress:
Hi every one,
I have recently seen some papers that claim to present an unconditionally stable explicit time integration method.
Is it (mathematically) possible to do such a thing?! I though that all explicit methods are atmost conditionally stable.
