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ipc-sim / IPC

Incremental Potential Contact (IPC) is for robust and accurate time stepping of nonlinear elastodynamics. IPC guarantees intersection- and inversion-free trajectories regardless of materials, time-step sizes, velocities, or deformation severity.
https://ipc-sim.github.io/
MIT License
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The meaning of matrix B #40

Closed MingtaoFu closed 7 months ago

MingtaoFu commented 7 months ago

https://github.com/ipc-sim/IPC/blob/573d2c7e04104d3f9baf526bdaee7745891a571a/src/Energy/Energy.cpp#L467

Dear authors, thank you for your amazing work. I am new to continuum mechanics, and I cannot understand the meaning of matrix B, left, and right coefficient here, and how B is composed of by the two coefficients. And why should we compute some values on Cdim2 (i.e. xy, yz, zx)? Thanks a lot!

MingtaoFu commented 7 months ago

I have found it in mpm course