[수렴과 관련된 에러들] Numerical Singularities / Zero Pivots / Negative Eigenvalues
Convergence issues spectific to Abaqus/Standard (Noncontact Related) Numerical Singularities : These indicate that so many digits are lost during linear equation solution that the results are not reliable. The most common cause is an unconstrained rigid body mode in a static stress analysis e.g. 경계조건이 부족하여 rigid body mode 발생 (방정식 개수 < 미지수 개수) Zero Pivots : These occur during linear equation solu..