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F a l l 2 0 1 6 ME 4 9 8 C A 1 L o a d i n g & A n a l y s i s C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU A B A Q U S L o a d i

  1. F a l l 2 0 1 6 ME 4 9 8 C A 1 L o a d i n g & A n a l y s i s C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  2. A B A Q U S L o a d i n g P r i m a r y R e f e r e n c e s  A b a q u s / C A E U s e r ’ s M a n u a l , § 1 6  G e t t i n g S t a r t e d w i t h A b a q u s : K e y w o r d s E d i t i o n , § 1 1  A b a q u s T h e o r y M a n u a l , § 2 , 6 C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  3. A B A Q U S L o a d i n g P r e s c r i b e d L o a d s concentrated uniform field variable field force degree of freedom analytical field C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  4. A B A Q U S L o a d i n g M o d u l e L o a d  A n a l y s i s s t e p s ( n o B C s o r p r e d e fj n e d c o n d i t i o n s )  P h y s i c a l l o a d s ( p o i n t D O F s )  B o u n d a r y c o n d i t i o n s ( d / v / T )  P r e d e fj n e d fj e l d s ( v o i d r a t i o , t e m p e r a t u r e , e x p ’ l d a t a )  L o a d c a s e s ( s e t s o f B C s + l o a d s )  R i g i d b o d y m o t i o n e r r o r :  s t a t i c : “ n u m e r i c a l s i n g u l a r i t y ” , “ z e r o p i v o t ”  d y n a m i c : “ e x c e s s i v e p l a s t i c i t y ” C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  5. A B A Q U S L o a d i n g M o d u l e S t e p  I n i t i a l s t e p  A n a l y s i s s t e p s ( n o B C s o r p r e d e fj n e d c o n d i t i o n s )  G e n e r a l s t e p s ( n o n l i n e a r / l i n e a r , s t a n d a r d / e x p l i c i t )  L i n e a r p e r t u r b a t i o n s t e p s ( l i n e a r / s t a n d a r d ) U s i n g t h e p r e v i o u s l o a d / d e f o r m a t i o n s t a t e a s a b a s i s , s i m u l a t e a l i n e a r p e r t u r b a t i o n .  L o a d s a r e s p e c i fj e d a b s o l u t e l y , n o t a s a d d i t i o n a l a c c r u a l s . → E . g . , 1 0 0 0 N 3 0 0 0 N s h o u l d s p e c i f y 1 0 0 0 , t h e n 3 0 0 0 ( n o t 1 0 0 0 t h e n 2 0 0 0 ) C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  6. A B A Q U S L o a d i n g M o d u l e —L o a d M a n a g e r S t e p  I n i t i a l s t e p  A n a l y s i s s t e p s ( n o B C s o r p r e d e fj n e d c o n d i t i o n s )  G e n e r a l s t e p s ( n o n l i n e a r / l i n e a r , s t a n d a r d / e x p l i c i t )  L i n e a r p e r t u r b a t i o n s t e p s ( l i n e a r / s t a n d a r d )  U s i n g t h e p r e v i o u s l o a d / d e f o r m a t i o n s t a t e a s a b a s i s , s i m u l a t e a l i n e a r p e r t u r b a t i o n .  N l g e o m —p e r s i s t s a c r o s s l a t e r s t e p s  L o a d s a r e s p e c i fj e d a b s o l u t e l y , n o t a s a d d i t i o n a l a c c r u a l s . → E . g . , 1 0 0 0 N 3 0 0 0 N s h o u l d s p e c i f y 1 0 0 0 , t h e n 3 0 0 0 ( n o t 1 0 0 0 t h e n 2 0 0 0 ) C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  7. A B A Q U S L o a d i n g M o d u l e S t e p  T o t a l t i m e i n c r e a s e s t h r o u g h o u t a l l g e n e r a l s t e p s  S t e p t i m e b e g i n s a t z e r o f o r e a c h s t e p C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  8. A B A Q U S L o a d i n g O u t p u t R e q u e s t s  R u n c o m p l e x s i m u l a t i o n s i n s t a g e s  R e s t a r t s t o r e s v a l u e s i n : res ( A b a q u s / S t a n d a r d ) odb o f s a m e n a m e r e q . adq ( A b a q u s / E x p l i c i t )  F r e q u e n c y : e v e r y i n c r e m e n t o r i n t e r v a l b y d e f a u l t  T h e m o d e l u s e d f o r a r e s t a r t mu s t b e i d e n t i c a l t o t h e p r e v i o u s o n e i n G e o m e t r y , P r o p e r t y , M e s h , p r i o r S t e p s . C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  9. A B A Q U S L o a d i n g R e s t a r t s  F  v i e l d H i s t o r y a r i a b l e s o f i n t e r e s t  H  r i s t o r y O u t p u t e g i o n t o o u t p u t  r a t e o f o u t p u t odb fj l e —d e f a u l t o u t p u t rpt fj l e —r e q u e s t e d o u t p u t ( t a b u l a r ) C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  10. A B A Q U S L o a d i n g E x a m p l e : M o d a l A n a l y s i s  3 D b e a m  L = 5 m = 0 . 1 8 m D t = 0 . 0 2 m  n e e d l o a d s u c h t h a t l o w e s t v i b r a t i o n a l m o d e > 5 0 H z  s t a r t w i t h F = 4 M N C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  11. A B A Q U S L o a d i n g E x a m p l e : M o d a l A n a l y s i s C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  12. A B A Q U S L o a d i n g G e o m e t r y F e a t u r e s  3 D / 2 D / A x i s y mme t r i c  P a r t T y p e : D e f o r ma b l e / D i s c r e t e r i g i d / A n a l y t i c a l r i g i d / E u l e r i a n  S h a p e : S o l i d / S h e l l / Wi r e ( B e a m) / P o i n t Analytical Rigid Deformable/ Discrete Rigid C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  13. A B A Q U S L o a d i n g G e o m e t r y F e a t u r e s  W i r e ( B e a m ) o n e d i m e n s i o n s i g . g r e a t e r , s t r e s s m o s t i m p . s e c t i o n p o i n t ( o r i e n t a t i o n ) C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  14. A B A Q U S L o a d i n g G e o m e t r y F e a t u r e s  W i r e ( B e a m ) o n e d i m e n s i o n s i g . g r e a t e r , s t r e s s m o s t i m p . s e c t i o n p o i n t ( o r i e n t a t i o n ) C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

  15. A B A Q U S L o a d i n g G e o m e t r y F e a t u r e s  S h e l l o n e d i m e n s i o n s i g . s m a l l e r , s t r e s s i n s i g . s e c t i o n p o i n t ( o r i e n t a t i o n ) R H r u l e f o r n o r m a l C o mp u t a t i o n a l S c i e n c e a n d E n g i n e e r i n g CSE.ILLINOIS.EDU

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