Evolution of radius, MMPs, and enlargement rate for AAAs with low proteolytic activity in the luminal layer of ILT (a–d) versus high proteolytic activity (e–h). (a,e) Evolution of radius at the ILT/wall interface (solid line), lumen/luminal layer interface (dotted line) and luminal layer/wall (for thin ILTs) or luminal/medial layer interface (when medial layer of thrombus is developed) (dashed line). (b,f) Evolution of the normalized total amount of MMPs in the wall (solid line) and intima (dashed line). (c,g) Evolution of AAA enlargement rate. (d,h) Evolution of maximal stresses in aortic wall.