## Abstract For the general quadrilateral isoparametric elements with 4(__n__β1) nodes (i.e. __n__ nodes along each side), it is shown that the inverse square root singularity of the strain field at the crack tip can be obtained by a general but simple rule. This amounts to collapsing the quadrilat
New superelements for singular derivative problems of arbitrary order
β Scribed by A. D. Nurse
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 412 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0029-5981
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π SIMILAR VOLUMES
## S 1. Introduction and statement of the results 1. The full proofs of the results stated in [18] are given in this paper. We consider the mixed problem (or the init,ial boundary value problem) for a second order strictly hyperbolic operator with a singular oblique derivative. This is the case wh
A new set of formulae is developed for the derivatives of torsion angle energy terms and is introduced into the program CHARMM. These formulae, which are based on derivatives of the torsion angle itself, avoid the singularities introduced by use of the derivatives of the torsion angle cosine. The po