Determine the maximum load W that the system shown can support if it is to be respect the mentioned functionality.
* Functionality:
?H max = 0.7 mm (upwards)
?H max = 0.6mm (downwards)
* It is known that both bars are 1.5 m long and have a cross section of 13 cm2
* Both bars are made of a material that behaves both in traction and in compression with the following stress-strain graph: