Do you qualify for social security disabilty benefits?
yes
your children may also qualify for  benefits on your record . Your eligible child can be your biological child , adopted child , or stepchild
What about a grandchild?
A dependent grandchild may also qualify
My grandchild is still a full time student  age 18
benefits continue until the child graduates or until two months after the child becomes 19 years of age
What does it take for a grandchild to qualify?
the child must be unmarried
Do you have any publications I can read?
yes read  Benefits For Childrens and What You Need To Know When You Get Social Security Disability Benefits
Will benefits for children explain if they are disabled?