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DAMASK_EICMD
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using eigh should ensure orthogonal eigenvectors

This commit is contained in:
Martin Diehl 2019-09-13 06:42:01 -07:00
parent 890a6cf42f
commit a3c6f6682e
1 changed files with 0 additions and 3 deletions
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processing/post/addStrainTensors.py
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@ -146,9 +146,6 @@ for name in filenames:
neg = np.where(D < 0.0) # find negative eigenvalues ...
D[neg] *= -1. # ... flip value ...
V[:,neg] *= -1. # ... and vector
for i in [0,1,2]:
V[:,(i+1)%3] = np.cross(V[:,(i+2)%3],V[:,i]) # correct next vector
V[:,(i+1)%3] /= np.linalg.norm(V[:,(i+1)%3]) # and renormalize (hyperphobic?)
for theStrain in strains:
d = operator(theStretch,theStrain,D) # operate on eigenvalues of U or V
eps = np.dot(V,np.dot(np.diag(d),V.T)).reshape(9) # build tensor back from eigenvalue/vector basis