I love roark's formulas for stress and strain and I can understand structural analysis the thing that I can't get is Statics and mechanics I don't know how they're doing these simplifications so I can't do them at all
I want to use Roarks formulas for stress and strain on things like trusses but I need to pass the exam so I need to know the lowly ones that was me bitching if anybody can say anything helpful I'd really appreciate it