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**Help needed In my course paperwork I cant seem to find the relevant equations needed to complete the following in if someone could help point me in the right direction of equations needed I would be very grateful**

1. Homework Statement

1. Homework Statement

A rectangular hollow beam length of 3m is simply supported at its ends it has width of 10 mm and depth of 200 mm the beam is subjected to a uniformly disturbed load of 2 tonnes/m and a point load of 200N at its centre position

I) determine the maximum stress due to bending (occurring at the centre point)

ii) determine the value of the radius of the curvature of the neutral layer

iii) the factor of safety if the maximum allowable stress of the material is 100MPa