Fig. 11From: Fracture saturation in paintings makes them less vulnerable to environmental variations in museumsDistance between cracks in the gesso. The normalised distance between the cracks in the gesso layer S/t for length of a surface flaw h = 0.2 mm is plotted as a function of applied strain εx. The second bottom axis shows change in RH corresponding to hygric strain in the tangential direction in lime woodBack to article page