Could a prepared fleet have forced the Dardanelles?

Could Churchill's plan to force the Dardanelles have worked if the navy had not withdrawn in the face of mine losses?

Possibly, but it required much better preparation for mines and a deliberate willingness to expose expendable pre-dreadnoughts.

In this counterfactual, forcing the Dardanelles would require deliberate preparation for mine damage. Older pre-dreadnoughts could be selected with an expectation that some would be lost. Sealing forward compartments and reducing crews would limit exposure, while temporary bulges around the hull could improve resistance at the cost of some speed. Those measures form a proposed way to continue the naval attack, with success dependent on accepting losses and preparing the ships for the task.