With respect to fatigue design of bellows there are a number of complications in bellows
performance such as, PROBABLE CONSERVATISM IN THE DEFLECTION STRESS EQUATION FOR REINFORCED BELLOWS,
strain concetration that occurs when bellows are deflected beyond the elastic limit and the effects on bellows geometry to which they can be very sensitive". In this statement, what does "PROBABLE CONSERVATISM IN THE DEFLECTION STRESS EQUATION FOR REINFORCED BELLOWS" means?
Thanks in advance....

Best Regards,